In one embodiment, a magnetic resonance imaging apparatus configured to sequentially execute plural imaging sequences includes: processing circuitry configured to calculate a predicted value of Long MR Examination specific absorbed energy which is an accumulated SAR (Specific Absorption Ratio) value over the plural imaging sequences; and a display configured to display information on the predicted value with respect to a predetermined safety reference value of the Long MR Examination specific absorbed energy.
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
G01R 33/54 - Systèmes de traitement du signal, p. ex. utilisant des séquences d'impulsions
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
G01R 33/28 - Détails des appareils prévus dans les groupes
2.
Magnetic resonance imaging apparatus and method for color-coding tissue based on T1 values
A magnetic resonance imaging apparatus according to an exemplary embodiment includes a memory, a specifying unit, and a display controller. The memory stores a corresponding color table representing correspondence relationships between T1 values of which value ranges with respect to each tissue are known and colors to be assigned to pixels with the T1 values. The specifying unit analyzes a T1-valued image and specifies colors to be assigned to each pixel on the basis of T1 values converted from pixel values of each pixel and the corresponding color table. The display controller displays on a display the image color-coded with the specified colors.
A61B 5/05 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
G01R 33/56 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61M 5/00 - Dispositifs pour faire pénétrer des agents dans le corps par introduction sous-cutanée, intravasculaire ou intramusculaireAccessoires à cet effet, p. ex. dispositifs de remplissage ou de nettoyage, appuis-bras
G01R 33/50 - Systèmes d'imagerie RMN basés sur la détermination des temps de relaxation
An MR image especially useful for computer-guided diagnostics uses at least one programmed computer to acquire an MR-image of T1 values for a patient volume containing at least one predetermined tissue type having a respectively corresponding predetermined range of expected T1 values. A color-coded T1-image is generated from the MR-image by (a) assigning a first color or spectrum of colors to those pixels having a T1 value falling within a predetermined range of expected T1 values and (b) assigning a second color or spectrum of colors to those pixels having a T1 value falling outside a predetermined range of expected T1 values. The color-coded T1-image is then displayed for use in computer-aided diagnosis of patient tissue.
G01R 33/56 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
G01R 33/50 - Systèmes d'imagerie RMN basés sur la détermination des temps de relaxation
In one embodiment, a magnetic resonance imaging apparatus configured to sequentially execute plural imaging sequences includes: processing circuitry configured to calculate a predicted value of Long MR Examination specific absorbed energy which is an accumulated SAR (Specific Absorption Ratio) value over the plural imaging sequences; and a display configured to display information on the predicted value with respect to a predetermined safety reference value of the Long MR Examination specific absorbed energy.
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
G01R 33/54 - Systèmes de traitement du signal, p. ex. utilisant des séquences d'impulsions
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
G01R 33/28 - Détails des appareils prévus dans les groupes
5.
Medical image diagnostic apparatus and medical image display apparatus for MRI or X-ray CT volume image correlations
A medical image diagnostic apparatus has an imaging unit that images volume data of a region-of-interest of an object, an extracting unit that extracts a characteristic point from the volume data; and, a generating unit that generates an observation sectional image from the volume data using the characteristic point and correlation parameters.
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A magnetic resonance imaging apparatus according to an embodiment includes a processor and a memory. The memory stores processor-executable instructions that cause the processor to detect cross-sectional positions of a plurality of cross-sectional images to be acquired in an imaging scan from volume data; acquire the cross-sectional images in sequence based on the cross-sectional positions by executing the imaging scan; and after the first cross-sectional image is acquired in the imaging scan, generate a display image, and display the display image on a display, the display image being an image in which a cross-sectional position of a second cross-sectional image which is detected from the volume data is superimposed on the first cross-sectional image, the second cross-sectional image being a cross-sectional image before being acquired and intersecting with the first cross-sectional image.
A61B 5/05 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio
G06K 9/36 - Prétraitement de l'image, c. à d. traitement de l'information image sans se préoccuper de l'identité de l'image
G01R 33/54 - Systèmes de traitement du signal, p. ex. utilisant des séquences d'impulsions
7.
Determining slice leakage in accelerated magnetic resonance imaging
Magnetic resonance imaging (MRI) systems and methods determine slice leakage and/or residual aliasing in the image domain in accelerated MRI imaging. Implementations process one slice of MRI image domain data by input to a sensitivity encoding (SENSE) un-aliasing matrix built from predetermined RF signal reception sensitivity maps, thereby producing as matrix output SENSE-decoded MRI image domain data for one pass through image slice and at least one extra slice, and determine inter-slice leakage and/or in-plane residual aliasing based on content of the at least one extra output slice from the SENSE-decoded MRI image domain data.
G01R 33/561 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne par réduction du temps de balayage, c.-à-d. systèmes d'acquisition rapide, p. ex. utilisant des séquences d'impulsions écho-planar
G01R 33/483 - Systèmes d'imagerie RMN avec sélection de signaux ou de spectres de régions particulières du volume, p. ex. spectroscopie in vivo
G01R 33/565 - Correction de distorsions d'image, p. ex. dues à des inhomogénéités de champ magnétique
8.
AUTOMATED INFORMATION COLLECTION AND PROCESSING OF CLINICAL DATA
Techniques and system configurations to enable the automated collection and evaluation of clinical data within an automated insights information system are disclosed herein. In an example, the information system is adapted to continuously monitor clinical systems for new patient data, process patient data into a standardized and structured format, selectively run algorithms to classify and characterize data, and stores the results of algorithms (such as findings, predictions, and recommendations) that can be used as input to other algorithms, or sent to clinical systems and presented to end users. In a specific example, a method performed in a computing system may include: requesting and obtaining a first and second set of clinical data, analyzing the first and second set of clinical data with respective algorithms, identifying a clinical finding, and generating output from the computing system based on the identified clinical finding.
An information system and user interface to enable the analysis of clinical data for operational improvement and issue identification in medical imaging procedures is disclosed. In an example, opportunity and usage analytics are generated from relevant imaging procedure data (e.g., radiology procedure data) through operations including: obtaining clinical data that indicates usage of imaging resources to perform medical imaging procedures; analyzing the usage of the imaging resources from the clinical data, to identify values of opportunities for predicted changes to the usage of the imaging resources; and generating a visualization of the values of the opportunities for output in a graphical user interface, the visualization indicating values of opportunities relative to past usage and predicted changes to the usage of the imaging resources. Further examples also enable a detailed visualization and interaction with data for a particular opportunity in relation to medical facilities, organizations, modalities, and staffing resources.
G16H 40/20 - TIC spécialement adaptées à la gestion ou à l’administration de ressources ou d’établissements de santéTIC spécialement adaptées à la gestion ou au fonctionnement d’équipement ou de dispositifs médicaux pour la gestion ou l’administration de ressources ou d’établissements de soins de santé, p. ex. pour la gestion du personnel hospitalier ou de salles d’opération
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
A61B 5/05 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio
There is provided an apparatus comprising processing circuitry configured to: receive first medical image data obtained using a first type of imaging procedure, wherein the first medical image data is representative of an anatomical region of a subject; and apply a simulator to perform a simulation process on the first medical image data to obtain simulated second medical image data, the simulated second medical image data having properties so as to simulate image data that is obtained using a second type of imaging procedure. The simulator comprises an image synthesizer that is trained in combination with a discriminator in an adversarial fashion by repeatedly alternating an image synthesizer training process in which the image synthesizer is trained to produce simulated medical image data, and a discriminator training process in which the discriminator is trained to distinguish between real medical image data and simulated medical image data.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
According to an embodiment, a device includes first and second generators, a detector, and a corrector. The first generator is configured to generate a first image based on data corresponding to photons with a first energy from among data that is obtained based on an energy of radiation that has passed through a subject. The second generator is configured to generate a second image based on data corresponding to photons with a second energy. The detector is configured to detect, in the second image, a second block having a similar pattern of pixel values to a first block included in the second image. The corrector is configured to correct pixel values of a third block in the first image corresponding to the first block based on new pixel values of the third block that are calculated by using pixel values included in a fourth block in the first image.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
12.
Apparatus and method for reducing artifacts in MRI images
Described herein is an apparatus and method for reducing artifacts in MRI images. The method includes acquiring a first set of data by under-sampling a first portion of a k-space at a first rate, and a second set of data by under-sampling a second portion of the k-space at a second rate. The method generates a first intermediate image and a second intermediate image based on the acquired first set of data and the acquired second set of data, respectively, and constructs a difference image including artifacts based on the generated first intermediate image and second intermediate image. The method includes reconstructing a final image, by selectively combining the first intermediate image with the second intermediate image, wherein the combining is based on identifying, for each artifact included in the difference image, one of the first intermediate image and the second intermediate image as being a source of the artifact.
G01R 33/561 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne par réduction du temps de balayage, c.-à-d. systèmes d'acquisition rapide, p. ex. utilisant des séquences d'impulsions écho-planar
MRI apparatus includes an RF coil device, a first radio communication unit, a second radio communication unit, an image reconstruction unit and a judging unit. The RF coil device detects an MR signal, and includes a data saving unit for storing the MR signal. The first radio communication unit wirelessly transmits the MR signal detected by the RF coil device, and the second radio communication unit receives the MR signal from the first radio communication unit. The image reconstruction unit reconstructs image data using the MR signal. The judging unit judges existence of a transmission error in radio communication between the first and second radio communication units. If the transmission error is present, the first radio communication unit wirelessly transmit the MR signal stored in the data saving unit to the second radio communication unit.
G01V 3/00 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation
G01R 33/36 - Détails électriques, p. ex. adaptations ou couplage de la bobine au récepteur
G01R 33/3415 - Détails de structure, p. ex. résonateurs comprenant des bobines de surface comprenant des ensembles de bobines
14.
Blood vessel analysis apparatus, medical image diagnosis apparatus, and blood vessel analysis method
According to one embodiment, a structuring circuitry temporarily structures a dynamical model of analysis processing based on the time-series medical image. The identification circuitry identifies a latent variable of the dynamical model so that at least one of a prediction value of a blood vessel morphology and a prediction value of a bloodstream based on the temporarily structured dynamical model is in conformity with at least one of an observation value of the blood vessel morphology and an observation value of the bloodstream measured in advance. The analysis circuitry analyzes the dynamical model to which the identified latent variable is allocated.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
Magnetic resonance imaging (MRI) systems and methods to effect improved and more efficient determination of the specific absorption rate (SAR) are described. The SAR is calculated based upon a derived relationship between a body surface area (BSA) and a portion of the total radio frequency (RF) energy delivered to RF transmit coil that is deposited in the imaging subject, and the scanning is controlled in accordance with the calculated SAR.
G01V 3/00 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation
G01R 33/28 - Détails des appareils prévus dans les groupes
G01R 33/54 - Systèmes de traitement du signal, p. ex. utilisant des séquences d'impulsions
16.
DISTRIBUTED CLINICAL WORKFLOW TRAINING OF DEEP LEARNING NEURAL NETWORKS
Techniques for training a deep neural network from user interaction workflow activities occurring among distributed computing devices are disclosed herein. In an example, processing of input data (such as input medical imaging data) is performed at a client computing device with the execution of an algorithm of a deep neural network. A set of updated training parameters are generated to update the algorithm of the deep neural network, based on user interaction activities (such as user acceptance and user modification in a graphical user interface) that occur with the results of the executed algorithm. The generation and collection of the updated training parameters at a server, received from a plurality of distributed client sites, can be used to refine, improve, and train the algorithm of the deep neural network for subsequent processing and execution.
G06N 3/063 - Réalisation physique, c.-à-d. mise en œuvre matérielle de réseaux neuronaux, de neurones ou de parties de neurone utilisant des moyens électroniques
A medical image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry acquires image data including image data of a blood vessel of a subject. The processing circuitry performs analysis related to the blood vessel by using the image data, and specifies a region of interest in the blood vessel based on a result of the analysis. The processing circuitry performs fluid analysis on a region other than the region of interest at a first accuracy, and performs fluid analysis on the region of interest at a second accuracy that is higher than the first accuracy.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
G06T 17/20 - Description filaire, p. ex. polygonalisation ou tessellation
18.
Magnetic resonance imaging apparatus and transmission control method
According to one embodiment, a magnetic resonance imaging apparatus provided with a plurality of transmission channels includes a signal processing unit and a control unit. The signal processing unit acquires a radio frequency magnetic field emitted from each of the plurality of transmission channels through a receiver coil mounted on an object and measure a phase of the radio frequency magnetic field. The control unit determines a phase difference between the plurality of transmission channels based on the phase of the radio frequency magnetic field of each of the plurality of transmission channels measured by the signal processing unit. The control unit controls a phase of a radio frequency pulse inputted to each of the plurality of transmission channels, based on the phase difference.
G01V 3/00 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation
G01R 33/54 - Systèmes de traitement du signal, p. ex. utilisant des séquences d'impulsions
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
G01R 33/36 - Détails électriques, p. ex. adaptations ou couplage de la bobine au récepteur
G01R 33/561 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne par réduction du temps de balayage, c.-à-d. systèmes d'acquisition rapide, p. ex. utilisant des séquences d'impulsions écho-planar
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
19.
Data fidelity weight design for iterative reconstruction
A method and apparatus is provided to determine a reconstructed image from computed tomography projection data using iterative reconstruction with an objective function that includes modified weights. The modified weights can include, among other weight values, redundancy weights and statistical weights, which are modified to compress low-frequency components. Additionally, high-frequency components of the statistical weights can be compressed, amplified, or maintained at their current magnitude. The high-frequency components can be subject to a threshold-and-invert step, substituting an inverted value for each high-frequency component above a predefined threshold. Using the modified weights, the reconstructed image can be determined using penalized weighted least squares to minimize the objective function.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
H04N 19/426 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques caractérisés par les détails de mise en œuvre ou le matériel spécialement adapté à la compression ou à la décompression vidéo, p. ex. la mise en œuvre de logiciels spécialisés caractérisés par les dispositions des mémoires utilisant des procédés de diminution de taille de mémoire
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A method and apparatus is provided to iteratively reconstruct a PET image for emission data using separable quadratic surrogates (SQS). The quadratic surrogates include a Poisson likelihood surrogate that has a curvature that depends on a back-projection of an inverse of mean-background signal. The method can be used with Nesterov acceleration and ordered subsets to achieve quadratic convergence to an image minimizing a Poisson Likelihood objective function that includes a regularizer that penalizes roughness in the reconstructed image.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A61B 6/02 - Agencements pour établir un diagnostic dans des plans différents successifsDiagnostic stéréoscopique utilisant des radiations
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
21.
Sample liquid preparing apparatus, test kit, and sample liquid preparing method
A sample liquid preparing apparatus includes a first cylinder portion, a cap portion, and a liquid preparation vessel. The first cylinder portion has a first to-be-fixed portion and a second to-be-fixed portion. The first cylinder portion accommodates a first plug and a second plug. A liquid is sealed between these plugs. The cap portion includes a plunger portion to push the second plug and a first fixing portion to limit the plunger portion from pushing the second plug by fixing the first to-be-fixed portion. The liquid preparation vessel includes a second cylinder portion whose internal space is pressed by the first cylinder portion and a second fixing portion to limit the first cylinder portion from pushing by fixing the second to-be-fixed portion.
An MRI apparatus includes an imaging data acquiring unit and a blood flow information generating unit. The imaging data acquiring unit acquires imaging data from an imaging region including myocardium, without using a contrast medium, by applying a spatial selective excitation pulse to a region including at least a part of an ascending aorta for distinguishably displaying inflowing blood flowing into the imaging region. The blood flow information generating unit generates blood flow image data based on the imaging data.
A61B 5/029 - Mesure du débit de sang à la sortie du cœur, p. ex. volume éjecté par minute
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
G01R 33/385 - Systèmes pour produire, homogénéiser ou stabiliser le champ magnétique directeur ou le champ magnétique à gradient utilisant des bobines de champ magnétique à gradient
G01R 33/563 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne de matériaux en mouvement, p. ex. angiographie à écoulement contrasté
G01R 33/56 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne
G01R 33/54 - Systèmes de traitement du signal, p. ex. utilisant des séquences d'impulsions
G01R 33/483 - Systèmes d'imagerie RMN avec sélection de signaux ou de spectres de régions particulières du volume, p. ex. spectroscopie in vivo
23.
Image analysis device and X-ray diagnostic apparatus
According to one embodiment, an image analysis device includes a parameter value acquisition unit, a color allocation unit and a time phase image generation unit. The parameter value acquisition unit acquires a parameter value per pixel, on the basis of time variation of pixel values per pixel corresponding to the same region of an object in image data of a plurality of sequential DSA images. The color allocation unit generates a color map in which a (chromatic) color in accordance with the parameter value is allocated per pixel corresponding to the same region of the object. The time phase image generation unit generates color image data of time phase images respectively corresponding to a plurality of time phases, by reflecting information in accordance with pixel values of the DSA images to each pixel of the color map.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A medical imaging data processing apparatus comprises processing circuitry configured to obtain a first imaging data set comprising a set of pixels or voxels, the first imaging data set being reconstructed from first measurement data representative of measurements of a measurement volume obtained by relative rotation of a medical scanner and the measurement volume by a first range of angles during a first scanning time period; obtain a second imaging data set comprising a set of pixels or voxels, the second imaging data set being reconstructed from second measurement data representative of measurements of the measurement volume obtained by relative rotation of the medical scanner and the measurement volume by a second range of angles during a second scanning time period, wherein the second scanning time period overlaps the first scanning time period such that some angles are included in both the first range of angles and the second range of angles; transform the first imaging data set to obtain a first transformed data set that is representative of the first measurement data as a function of at least one of angle or time; transform the second imaging data set to obtain a second transformed data set that is representative of the second measurement data as a function of at least one of angle or time; and determine at least one angle of the first range of angles and/or second range of angles based on differences between the first transformed data set and second transformed data set.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
25.
Image processing apparatus, magnetic resonance imaging apparatus and image processing method
An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry recognizes at least one of chest wall, vessels, nodules, and tumors by increasing sensitivity to a gradient and a sensitivity to a cavity structure in three-dimensional data including a lung area. The processing circuitry generates lung image data corresponding to the lung area by performing a data removing process for removing data derived from the chest wall and a data holding process for holding data derived from at least one of the vessels, the nodules, and the tumors on a basis of a result obtained by the recognizing. The processing circuitry outputs the lung image data.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
The Research Foundation for the State University of New York (USA)
Toshiba Medical Systems Corporation (Japon)
Inventeur(s)
Rudin, Stephen
Bednarek, Daniel R.
Jain, Amit
Manak, Joseph
Abrégé
A radiography apparatus includes a radiation source, a radiation detector, and processing circuitry. The processing circuitry is configured to obtain an X-ray image of an object, obtain a focal spot size of a radiation source used to generate the obtained X-ray image, and estimate a magnification of the obtained X-ray image. The processing circuitry is also configured to obtain, using a look-up table and the obtained focal spot size, a deconvolution kernel. The processing circuitry is also configured to generate a corrected X-ray image by performing a deconvolution operation on the obtained X-ray image using the obtained deconvolution kernel and the estimated magnification.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A medical image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry detects three or more bones and a joint space region from three-dimensional medical image data captured for images of a joint formed between the three or more bones, the joint space region corresponding to a joint space of the joint. The processing circuitry divides the joint space region into a plurality of small regions corresponding to different pairs of opposed bones of the three or more bones. The processing circuitry obtains information on each of the small regions based on the small regions into which the joint space region has been divided that correspond to the different pairs of bones. The processing circuitry outputs the obtained information.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A medical imaging data processing apparatus comprises processing circuitry configured to: obtain a first data set representative of at least some measurements of a measurement volume obtained by rotation of a medical scanner relative to the measurement volume during a first scanning time period; obtain a second data set representative of at least some measurements of the measurement volume obtained by rotation of the medical scanner relative to the measurement volume during a second scanning time period that overlaps the first scanning time period; and perform a procedure to obtain an estimate of motion between the first scanning time period and second scanning time period based on the first data set and second data set; wherein the obtaining is such as to exclude from the first data set and from the second data set at least some of the data representative of said measurements obtained during an overlap between the first scanning time period and second scanning time period; and wherein a data set representative of measurements obtained during at least one of the first scanning time period and second scanning time period is suitable for use in reconstructing a medical imaging data set representative of at least part of the measurement volume.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A61B 6/04 - Mise en position des patientsLits inclinables ou similaires
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A method and apparatus is provided to reconstruct a computed tomography image from projection data using windowed filtered back-projection (FBP) and using regularization constraints that can be quadratic or non-quadratic. The method emulates multiple Landweber iterations using a single windowed FBP operation and then iterates between imposing regularization constraints and a single windowed FBP operation. This windowed FBP operation is only performed once. The regularization constraints can be imposed using edge-preserving denoising methods, including, e.g., a Huber filter, a median filter, a bilateral filter, a guided filter, a non-local means filter, a total-variation minimization regularizer, other known regularizer, or an anisotropic diffusion filter. The entire procedure contains no forward projection and contains only one back-projection.
A medical image data processing apparatus comprises processing circuitry configured to: receive a plurality of sets of medical imaging data; and train a classifier for use in classification, wherein the training of the classifier comprises, for each of the plurality of sets of medical imaging data: selecting a first part and a second part of the respective set of medical imaging data, wherein the first part and the second part are representative of different regions of the same subject; and training the classifier for use in classification based on the first part of the set of medical imaging data and the second part of the set of medical imaging data.
G06T 7/33 - Détermination des paramètres de transformation pour l'alignement des images, c.-à-d. recalage des images utilisant des procédés basés sur les caractéristiques
31.
Scatter simulation with a radiative transfer equation using direct integral spherical harmonics method for computed tomography
A method and apparatus is provided to calculate scatter using a method to determine primary X-ray flux, first-scatter flux, and multiple-scatter flux using an integral formulation of a radiative transfer equation and using spherical-harmonic expansion. The integral for the primary X-ray flux does not include a spherical-harmonic expansion. The integral for the first-scatter flux includes an angle-dependent scatter cross-section. The integral for the multiple-scatter flux is performed iteratively, includes spherical harmonics, and includes a scatter cross-section expanded using Legendre polynomials. The integrals of attenuation along propagation rays can be accelerated using material decomposition of the attenuation coefficients. An anti-scatter-grid term can be included in the integrals to account for the effects of an anti-scatter grid on the fluxes prior to detection of the X-rays.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
According to one embodiment, an automatic analyzer includes dispenser, measurer, thermostat, cooler and cleaner. Dispenser dispenses a specimen and a reagent into a reaction vessel. Measurer measures a solution mixture of the specimen and the reagent in the vessel. Thermostat heats the mixture to a first temperature at which thermoresponsive polymers contained in the reagent aggregate. Cooler cools a cleaning fluid used to clean the vessel to a second temperature lower than the first temperature, at which the polymers contained in the reagent disperse. Cleaner cleans the vessel from which the mixture has been drained, using the cooled fluid.
G01N 35/00 - Analyse automatique non limitée à des procédés ou à des matériaux spécifiés dans un seul des groupes Manipulation de matériaux à cet effet
G01N 15/06 - Recherche de la concentration des suspensions de particules
G01N 35/10 - Dispositifs pour transférer les échantillons vers, dans ou à partir de l'appareil d'analyse, p. ex. dispositifs d'aspiration, dispositifs d'injection
G01N 33/53 - Tests immunologiquesTests faisant intervenir la formation de liaisons biospécifiquesMatériaux à cet effet
G01N 35/02 - Analyse automatique non limitée à des procédés ou à des matériaux spécifiés dans un seul des groupes Manipulation de matériaux à cet effet en utilisant une série de récipients à échantillons déplacés par un transporteur passant devant un ou plusieurs postes de traitement ou d'analyse
A method and apparatus is provided to detect and correct for distributed X-ray detection events in which the electrical signal arising from the detection of an X-ray is distributed across more than one element of an X-ray detection array. Examples of distributed-detection events include charge sharing across adjacent boundaries between detector elements and X-ray fluorescence between detector elements. Distributed-detection events can be determined by their corresponding to a partial-detection energy that is in a range of energies great than an upper energy for noise and cross-talk and less than a lower energy for an X-ray spectrum from an X-ray source. For a distributed-detection event, the energy of the event is recorded using a sum of electrical signals from the detector elements of the event.
A medical image data processing system comprising processing circuitry configured to receive three-dimensional medical imaging data; and process the three-dimensional medical imaging data to generate using a virtual light source an image for display, wherein the processing circuitry is configured to vary at least one parameter relevant to the virtual light source in dependence on at least one of a position of a medical device inserted into a human or animal body, a position of a viewing point for virtual endoscopic imaging, and the progress of a procedure.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A61B 5/05 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
G06T 7/70 - Détermination de la position ou de l'orientation des objets ou des caméras
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
Magnetic resonance imaging (MRI) systems and methods to effect MRI data acquisition with reduced noise are described. A readout gradient, having a first polarity used to acquire and store MRI data in k-space memory during analog-to-digital conversion (ADC) of MR RF signals during one TR interval, is continued at substantially a same amplitude and vector direction and used as an image volume selection gradient during a transmitted RF excitation pulse that begins a next TR interval before the readout gradient transitions to an opposite polarity. The acquired k-space data is then used to generate an MR image.
G01V 3/00 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation
G01R 33/385 - Systèmes pour produire, homogénéiser ou stabiliser le champ magnétique directeur ou le champ magnétique à gradient utilisant des bobines de champ magnétique à gradient
G01R 33/561 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne par réduction du temps de balayage, c.-à-d. systèmes d'acquisition rapide, p. ex. utilisant des séquences d'impulsions écho-planar
A medical image diagnostic device according to the present embodiment is equipped with an imaging unit that captures an image of a first region of a test subject and generates medical image data. The imaging unit acquires biometric information from a detecting unit for detecting the biometric information of a second region of the test subject, said second region differing from the first region, and captures an image of the first region on the basis of the biometric information changed by movement in the second region of the test subject.
Magnetic resonance imaging (MRI) systems and methods to effect MRI data acquisition with reduced noise in fast spin echo (FSE) and spin echo (SE) implementations are described. The improved MRI data acquisition is performed by acquiring k-space data while maintaining a constant or near constant slice select gradient amplitude throughout a sequence kernel. The acquired k-space data can then be used to generate an MR image.
G01R 33/385 - Systèmes pour produire, homogénéiser ou stabiliser le champ magnétique directeur ou le champ magnétique à gradient utilisant des bobines de champ magnétique à gradient
G01R 33/561 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne par réduction du temps de balayage, c.-à-d. systèmes d'acquisition rapide, p. ex. utilisant des séquences d'impulsions écho-planar
G01R 33/483 - Systèmes d'imagerie RMN avec sélection de signaux ou de spectres de régions particulières du volume, p. ex. spectroscopie in vivo
39.
X-ray CT apparatus, medical information processing apparatus, and medical information processing method
An X-ray CT apparatus according to an embodiment includes processing circuitry. The processing circuitry collects pieces of image data in a plurality of time phases that contain at least a part of a coronary artery of a heart. The processing circuitry acquires image indexes regarding the pieces of image data. The processing circuitry extracts a set of image data from combinations of pieces of image data having a larger time interval than a predetermined time interval, of the pieces of image data, based on the image indexes in the respective pieces of image data. The processing circuitry performs fluid analysis regarding the coronary artery based on the extracted set of image data to obtain a fluid parameter regarding the coronary artery.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 5/02 - Détection, mesure ou enregistrement en vue de l'évaluation du système cardio-vasculaire, p. ex. mesure du pouls, du rythme cardiaque, de la pression sanguine ou du débit sanguin
A method and apparatus is provided to perform material decomposition based on spectral computed tomography (CT) projection data generated using registered reconstructed images. Registration is performed in the image domain, whereas material decomposition is performed in the sinogram domain. In the sinogram domain, material decomposition can include beam-hardening corrections. For at least two energy components, CT images are reconstructed, and registration is performed among the CT images. In certain implementations, the registered images are forward projected, and material decomposition is based on the resultant forward projections. In other implementations, motion images are generated from differences between the reconstructed CT images pre- and post-registration. The projection data is then corrected using forward projections of the motion images, and material decomposition is performed using the motion-corrected projection data.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A computed tomography (CT) method and apparatus including a radiation source configured to produce radiation directed to an object space, and a plurality of detector elements configured to detect the radiation produced from the radiation source through the object space and generate projection data. A rotation mount is configured to rotate the radiation source around the object space. Processing circuitry is configured to cause the rotation mount to rotate the radiation source, and to receive the projection data. The projection data includes a plurality of projection data sets. The processing circuitry calculates a set of weights based on the projection data sets, calculates a set of pre-weights based on the weights, and minimizes a penalized weighted least-squares cost function to produce a reconstructed image. The cost function is a sum of a weighted least-squares term, weighted using the weights, and a penalty term weighted using the pre-weights.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A medical diagnostic-imaging apparatus of an embodiment includes plural converters and processing circuitry. The converters output an electrical signal based on an incident radioactive ray. The processing circuitry identifies a first signal intensity that is a signal intensity corresponding to a peak of the number of the radioactive rays based on a relationship between a signal intensity of an electrical signal output from the convertor and the number of incident radioactive rays, for each of the converters. The processing circuitry identifies a second signal intensity that is a signal intensity corresponding to energy of a radioactive ray that has entered therein without scattering, based on a relationship between the signal intensity and the number of radioactive rays in a higher intensity than the first signal intensity. The processing circuitry corrects a signal intensity of an electrical signal that is output from the respective converters such that the second signal intensity identified for each of the converters matches with a target signal intensity.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A medical image processing apparatus includes processing circuitry and a display. The processing circuitry acquires object volume data including a bone fracture region acquired from a subject and target volume data acquired based on a healthy bone region corresponding to the bone fracture region. The processing circuitry extracts a plurality of fragment regions from the object volume data. The processing circuitry arranges the plurality of extracted fragment regions in the object volume data based on shapes of the plurality of fragment regions and a shape of a bone region included in the target volume data. The display displays an image based on the object volume data in which the fragment regions are arranged.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
A magnetic resonance imaging apparatus includes an imaging unit configured to carry out magnetic resonance imaging of a patient using a transmitting QD coil that allows at least one of phase and amplitude of a radio-frequency transmit pulse on at least one input channel of the transmitting QD coil to be adjusted independently of each other, and an adjustment unit arranged to adjust at least one of the phase and the amplitude of the radio-frequency transmit pulse according to imaging conditions.
G01V 3/00 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation
G01R 33/36 - Détails électriques, p. ex. adaptations ou couplage de la bobine au récepteur
G01R 33/565 - Correction de distorsions d'image, p. ex. dues à des inhomogénéités de champ magnétique
G01R 33/24 - Dispositions ou appareils pour la mesure des grandeurs magnétiques faisant intervenir la résonance magnétique pour la mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques
G01R 33/561 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne par réduction du temps de balayage, c.-à-d. systèmes d'acquisition rapide, p. ex. utilisant des séquences d'impulsions écho-planar
According to one embodiment, a medical image diagnostic apparatus includes a storage memory, processing circuitry, and a display. The storage memory stores data of a plurality of FFR distribution maps constituting a time series regarding a coronary artery, and data of a plurality of morphological images corresponding to the time series. The processing circuitry converts the plurality of FFR distribution maps into a plurality of corresponding color maps, respectively. The display displays a plurality of superposed images obtained by superposing the plurality of color maps and the plurality of morphological images respectively corresponding in phase to the plurality of color maps. The display restricts display targets for the plurality of color maps based on the plurality of FFR distribution maps or the plurality of morphological images.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
G06T 7/30 - Détermination des paramètres de transformation pour l'alignement des images, c.-à-d. recalage des images
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
48.
Apparatus and method for hybrid pre-log and post-log iterative image reconstruction for computed tomography
A method and apparatus is provided to iteratively reconstruct a computed tomography (CT) image using a hybrid pre-log and post-log iterative reconstruction method. A pre-log formulation is applied to values of the projection data that are less than a threshold (e.g., X-ray intensities corresponding to high absorption trajectories). The pre-log formulation has better noise modeling and better image quality for reconstructed images, but is slow to converge. Projection data values above the threshold are processed using a post-log formulation, which has fast convergence but poorer noise handling. However, the poorer noise handling has little effect on high value projection data. Thus, the hybrid pre-log and post-log method provides improved image quality by more accurately modeling the noise of low count projection data, without sacrificing the fast convergence of the post-log method, which is applied to high-count projection data.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
According to one embodiment, an X-ray diagnostic apparatus includes a first arm, a second arm, a holding structure, an X-ray tube and an X-ray detector. The first arm rotates by a first rotating shaft and slides along a first arc-like slide axis relatively to the first rotating shaft. The second arm rotates by a second rotating shaft and slides along a second arc-like slide axis relatively to the second rotating shaft. The holding structure is connected with a first arm side and configured to hold the second arm. The X-ray tube and the X-ray detector are installed on the second arm.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A61B 6/04 - Mise en position des patientsLits inclinables ou similaires
F16C 19/50 - Autres types de roulements à billes ou à rouleaux
F16C 29/06 - Roulements à billes ou à rouleaux dans lesquels les billes ou rouleaux ne supportent la charge que sur une partie du chemin de roulement
50.
Method for estimation and correction of grid pattern due to scatter
An apparatus for generating corrected X-ray projection data from target X-ray projection data obtained by performing an X-ray scan with a detector having an anti-scatter grid, and a method for creating a lookup table and generating corrected X-ray projection data. The apparatus includes a detector configured to detect incident X-rays, an anti-scatter grid configured to suppress scattered radiation incident on the detector, and an X-ray source configured to irradiate the target with X-rays. Processing circuitry is configured to cause the X-ray source to scan, using a peak kilovoltage (kVp), the target to produce the target projection data, determine a patient-to-detector distance (PDD) and an area irradiated (FS), transform the target projection data into a spatial frequency domain, determine scatter values by accessing the lookup table using the kVp, PDD, and FS values, and subtract the scatter values from the frequency components to obtain the corrected X-ray projection data.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
G01T 7/00 - Détails des instruments de mesure des radiations
G06T 5/50 - Amélioration ou restauration d'image utilisant plusieurs images, p. ex. moyenne ou soustraction
51.
Medical image processing apparatus and non-transitory computer-readable storage medium
According to one embodiment, a medical image processing apparatus includes a storage and processing circuitry. The storage stores a first image indicating a breast of an object captured by a medical image diagnostic apparatus and interpretation information associated with the first image. The processing circuitry generates, based on position information of a region of interest based on the interpretation information and information of an interpretation direction, schematic diagram information for adding information about a position of the region of interest onto a schematic diagram of the breast. The processing circuitry transmits information, including the schematic diagram information, for generating the schematic diagram.
G06F 19/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des applications spécifiques (spécialement adaptés à des fonctions spécifiques G06F 17/00;systèmes ou méthodes de traitement de données spécialement adaptés à des fins administratives, commerciales, financières, de gestion, de surveillance ou de prévision G06Q;informatique médicale G16H)
52.
Apparatus and method of iterative image reconstruction using regularization-parameter control
A method and apparatus is provided to predict a regularization parameter for regularized iterative reconstruction of radiation detection data (e.g., computed tomography (CT) data or positron-emission tomography (PET) data) to generate a reconstructed image having specified statistical properties. The predicted regularization parameter is determined using a root-finding method performed on a transcendental objective function. The objective function is calculated using a three-dimensional Fourier transforms of an approximation to a shift invariant Hessian matrix and of matrix products between the forward-projection and back projection matrices of the system model and various (statistical) weight matrices. The specified statistical properties can include the standard deviation within a region of interest, a local spatial resolution, a low-contrast-detectability metric, etc. In addition to the specified statistical properties, the prediction of the regularization parameter accounts for the statistical properties of the radiation detection data, the display field of view, and the system model.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
Provided is an MRI apparatus. In the MRI apparatus, a data collection unit repetitively performs a tag mode of applying an RF wave to at least an upstream portion of an imaging area to perform fluid labeling of a fluid flown into the imaging area and, after a lapse of an inversion time from application of the RF wave, performing magnetic resonance data collection, while changing the inversion time. An image reconstruction unit reconstructs a plurality of tag images corresponding to a plurality of different inversion times based on the magnetic resonance data collected in the tag mode. A reference image generation unit generates a reference image based on the plurality of the tag images. A fluid image generation unit generates a subtraction image between each of the tag images and the reference image as a fluid image.
G01V 3/00 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
G01R 33/563 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne de matériaux en mouvement, p. ex. angiographie à écoulement contrasté
According to one embodiment of the present invention, a collimator has a plurality of lattice-like modules (101, 101A, 101B, 101C, 101D, 101E, 101F, 101G, 101H) wherein a plurality of walls (111, 112) are disposed by being aligned with each other in the first direction, and the second direction intersecting the first direction, and the modules (101, 101A, 101B, 101C, 101D, 101E, 101F, 101G, 101H) are connected to each other by means of connecting sections (103).
A coil pad according to one embodiment is a coil pad that is placed between a receiving coil and a subject. The receiving coil is mounted on the subject and receives a magnetic resonance signal emitted from the subject. The coil pad includes a pad opening and a vibrating portion. The pad opening is aligned with a coil opening included in the receiving coil and forms a through-hole between the coil opening and the subject. The vibrating portion vibrates with a medium that transmits vibration being filled therein.
G01R 33/563 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne de matériaux en mouvement, p. ex. angiographie à écoulement contrasté
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
G01R 33/3415 - Détails de structure, p. ex. résonateurs comprenant des bobines de surface comprenant des ensembles de bobines
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
G01R 33/28 - Détails des appareils prévus dans les groupes
56.
Portable device for emergency magnetic field shutdown
Devices and methods are provided for shutting down a magnet system. The device includes a portable housing, a communication unit, and a switch on the portable housing. The portable housing encloses a field shutdown initiation circuitry. The communication unit is disposed at least partially in the portable housing and the communication unit is configured to establish communication between the field shutdown initiation circuitry and the magnet system. The switch is configured to turn on the field shutdown initiation circuitry to initiate a magnet field shutdown in the magnet system.
G08B 1/00 - Systèmes de signalisation caractérisés seulement par la forme de transmission du signal
G01R 33/28 - Détails des appareils prévus dans les groupes
G08B 21/02 - Alarmes pour assurer la sécurité des personnes
G08B 5/22 - Systèmes de signalisation optique, p. ex. systèmes d'appel de personnes, indication à distance de l'occupation de sièges utilisant une transmission électriqueSystèmes de signalisation optique, p. ex. systèmes d'appel de personnes, indication à distance de l'occupation de sièges utilisant une transmission électromécanique
57.
Method and apparatus for determining treatment region and mitigating radiation toxicity
An apparatus for determining a contour of a treatment region in a patient includes a computer processor to receive input regarding a contour of at least one organ-at-risk (OAR) adjacent to the treatment region; receive input regarding an initial contour of the treatment region; predict a radiation toxicity to the at least one OAR based on the contour of the at least one OAR, the initial contour of the treatment region, and a radiation treatment regimen; determine whether the predicted radiation toxicity exceeds a threshold; and determine a contour of the treatment region by iteratively modifying the initial contour of the treatment region, and any subsequent modified contours of the treatment region, until a stopping condition is satisfied. The stopping condition can be a preselected number of iterations or that the predicted radiation toxicity using the contour in place of the initial contour is first calculated is below said threshold.
A61B 5/103 - Dispositifs de mesure pour le contrôle de la forme, du dessin, de la dimension ou du mouvement du corps ou de parties de celui-ci, à des fins de diagnostic
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A photon counting detector of an embodiment includes X-ray detection elements, a capacitor, and generating circuitry. The X-ray detection elements detect an X-ray and generate an electrical signal. The capacitor is provided for each of the X-ray detection element, and accumulates an electrical signal generated in each of the X-ray detection element. The generating circuitry has low sensitivity to radiation, and generates a digital signal by using an accumulation result of the electrical signal in the capacitors, and reference information that is stored in advance.
G01T 1/17 - Dispositions de circuits non adaptés à un type particulier de détecteur
G01N 23/046 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux en utilisant la tomographie, p. ex. la tomographie informatisée
59.
Image reconstructing apparatus and image reconstructing method
When a group of (pre-processed) projection data is stored into a projection-data storage unit, a Gaussian-based expansion-data creating unit creates a group of Gaussian-based expansion data that is expanded from each of the group of projection data through linear combination based on a plurality of Gaussian functions that is stored by a Gaussian-function storage unit and has different center points. A reconstruction-image creating unit then creates a reconstruction image by using the Gaussian-based expansion-data created by the Gaussian-based expansion-data creating unit, and stores the created reconstruction image into an image storage unit.
According to one embodiment, the ultrasonic diagnosis apparatus includes a storing unit and processing circuitry. The storing unit is configured to store a plurality of images usable as a reference image to be referred to at the time of scanning, the plurality of images includes images corresponding to a plurality of cross sections. The processing circuitry is configured to read, when a cross section that needs to be scanned is switched in accordance with a workflow, from the storing unit one or more images registered for each of the plurality of cross sections in advance, the workflow defining a flow of procedures including scanning the plurality of cross sections. The processing circuitry is configured to display the read image as the reference image on a display.
A medical-image processing apparatus according to an embodiment includes processing circuitry. The processing circuit acquires an initial value of an outline corresponding vector that corresponds to an outline of a subject included in medical image data. The processing circuitry updates the outline corresponding vector based on a derivative that is acquired by differentiating a cost function with respect to the outline corresponding vector by the outline corresponding vector, and on the initial value of the outline corresponding vector.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
G06K 9/48 - Extraction d'éléments ou de caractéristiques de l'image en codant le contour de la forme
G06K 9/62 - Méthodes ou dispositions pour la reconnaissance utilisant des moyens électroniques
62.
Ultrasound diagnosis apparatus and image processing method
An ultrasound diagnosis apparatus includes processing circuitry. The processing circuitry obtains three-dimensional medical image data, taken by using an ultrasound probe, of a region including a heart valve of a patient and a catheter inserted into a heart chamber of the patient. The processing circuitry determines an advancing direction of a tip end part of the catheter by obtaining information on a position and a posture of the tip end part included in the three-dimensional medical image data, by using at least one selected from shape information indicating the shape of the tip end part and reflection characteristic information indicating ultrasound reflection characteristics of the tip end part. The processing circuitry generates a display image from the three-dimensional medical image data in accordance with the position and the advancing direction of the tip end part. The processing circuitry causes the display image to be displayed.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A61B 8/00 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores
A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
A61B 6/12 - Agencements pour détecter ou localiser des corps étrangers
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
An X-ray diagnostic apparatus according to an embodiment includes an X-ray tube, a detector, an acquisition circuitry, and imaging control circuitry. The acquisition circuitry creates photon count data indicating the number of photons of the X-rays incident on the detector, for each of a plurality of energy bins for identifying a plurality of target substances, based on the detection signal output by the detector. The imaging control circuitry determines an imaging plan including at least one of a setting condition that is a condition concerning setting of a plurality of energy bins used when the acquisition circuitry creates photon count data in main imaging, and an X-ray radiation condition that is a condition concerning X-rays emitted by the X-ray tube in main imaging, based on the photon count data created by the acquisition circuitry or image data of the subject.
G01N 23/04 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A61B 6/04 - Mise en position des patientsLits inclinables ou similaires
An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry performs a fluid analysis using image data including a blood vessel to calculate an index value relating to blood flow in the blood vessel. The processing circuitry specifies a plurality of target sites in the blood vessel in the image data. The processing circuitry changes analysis conditions for the fluid analysis corresponding to the positions of the target sites. The processing circuitry causes a display to display, in a comparative manner, the index value relating to blood flow calculated under the changed analysis conditions for the target sites.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
According to one embodiment, a magnetic resonance imaging apparatus includes control circuitry. The control circuitry executes, by a single protocol, acquisition of a distribution of a T1 relaxation time with a first slice as a target, and acquisition of a different kind from the distribution of the T1 relaxation time with a second slice as a target which neither overlaps nor crosses a region of interest of the first slice.
G01R 33/50 - Systèmes d'imagerie RMN basés sur la détermination des temps de relaxation
G01R 33/483 - Systèmes d'imagerie RMN avec sélection de signaux ou de spectres de régions particulières du volume, p. ex. spectroscopie in vivo
G01R 33/563 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne de matériaux en mouvement, p. ex. angiographie à écoulement contrasté
66.
Medical image processing apparatus and analysis region setting method of texture analysis
In one embodiment, a medical image processing apparatus includes memory circuitry configured to store a program; and processing circuitry configured, by executing the program, to set a region of interest in a medical image, set an analysis region in the region of interest by reducing the region of interest, and calculate feature amount in the analysis region.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A method and apparatus is provided to denoise material-decomposition data generated using projection data from a spectral computed tomography scanner. A whitening transform is used to transform the material-decomposition data into uncorrelated components and perform denoising on the uncorrelated components. Using different denoising parameters for the various uncorrelated components, a flattening can be achieved for the standard deviation of the noise as a function of X-ray energy, which can be determined using mono-energetic images derived from the material-decomposition data. The whitening transformation and the denoising can be applied the material-decomposition sinograms and/or to material-decomposition images reconstructed from the material-decomposition sinograms.
An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to obtain a value of an index related to a predetermined disease for each of a plurality of sites included in a brain of a patient, on the basis of a plurality of pieces of medical image data obtained by imaging the brain of the patient at each of a plurality of points in time. The processing circuitry is configured to analyze, for each of the plurality of sites, a relationship between changes in the value at the plurality of points in time and a progress model indicating changes in the index through progress of the predetermined disease. The processing circuitry is configured to output an analysis result obtained from the analysis for each of the plurality of sites.
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
G06F 19/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des applications spécifiques (spécialement adaptés à des fonctions spécifiques G06F 17/00;systèmes ou méthodes de traitement de données spécialement adaptés à des fins administratives, commerciales, financières, de gestion, de surveillance ou de prévision G06Q;informatique médicale G16H)
69.
Magnetic resonance imaging apparatus and magnetic resonance imaging method
A magnetic resonance imaging apparatus according to an embodiment includes control circuitry and processing circuitry. The control circuitry executes a first pulse sequence performing MR (Magnetic Resonance) spectroscopy and configured to execute a second pulse sequence applying an MT (Magnetization Transfer) pulse. The processing circuitry causes a display to present first data acquired based on the first pulse sequence and second data acquired based on the second pulse sequence.
An imaging condition setting unit sets imaging conditions for a pre-contrast enhancement scan, a monitoring scan, and a post-contrast enhancement scan. A ROI setting unit sets a region of interest for the monitoring scan in a reference image generated by a reference image scan executed before the pre-contrast enhancement scan, the monitoring scan, and the post-contrast enhancement scan. The scan control unit controls an X-ray generation unit and an X-ray detection unit to sequentially execute, based on the imaging conditions, the pre-contrast enhancement scan, the monitoring scan, and the post-contrast enhancement scan.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
An X-ray CT apparatus (1) according to an embodiment of the present invention includes a platform (10), a bed (20), a storage unit (35), and a tabletop control unit (37b). The platform (10) has an opening provided between an X-ray tube (12a) and an X-ray detector (13). The bed (20) includes a driving unit (21) for inserting a tabletop (22) on which a subject (P) lies into the opening. The storage unit (35) stores information relating to a plurality of puncture positions on the tabletop (22), corresponding to unique information for a plurality of operators who perform manual procedures on the subject (P). In a case where a first operator performs a manual procedure, the tabletop control unit (37b) controls the driving unit (21) so that the tabletop (22) will be moved to a puncture position indicated by information relating to the puncture position corresponding to the unique information for the first operator among the information relating to the plurality of puncture positions, stored in the storage unit (35).
An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to obtain one or more complex product signal values each indicating a signal value of a complex product and a complex ratio signal value indicating a signal value of a complex ratio calculated in units of pixels by using first data and second data successively acquired by implementing a gradient echo method after an Inversion Recovery (IR) pulse is applied and to derive a T1 value of each of the pixels from one of the complex product signal values selected on the basis of the obtained complex ratio signal value.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
G01R 33/561 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne par réduction du temps de balayage, c.-à-d. systèmes d'acquisition rapide, p. ex. utilisant des séquences d'impulsions écho-planar
73.
Photon counting imaging apparatus and X-ray detection apparatus
According to one embodiment, a photon counting imaging apparatus includes an X-ray tube, an X-ray detector, and data acquisition circuitry. The X-ray detector includes a detector pixel including photoelectric conversion cells each configured to individually generate an electrical signal of a predetermined pulse height, and output circuitry configured to generate an energy signal having a pulse height corresponding to energy of the X-rays based on the electrical signals from the photoelectric conversion cells. The data acquisition circuitry corrects the energy signal based on a relationship between an amplification factor and an applied voltage to the detector pixel during a period until the voltage applied to the detector pixel recovers from a breakdown voltage to a reverse bias voltage.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry sets a reference position in an area extracted by performing first processing on first image data. The processing circuitry sets a processing condition based on a pixel value at the reference position. The processing circuitry changes a threshold included in the processing condition in stages and performs second processing for extracting an area corresponding to the threshold on the first image data at each stage, thereby generating second image data including a result of the second processing at each stage.
G06T 7/155 - DécoupageDétection de bords impliquant des opérateurs morphologiques
G06T 7/136 - DécoupageDétection de bords impliquant un seuillage
G06F 19/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des applications spécifiques (spécialement adaptés à des fonctions spécifiques G06F 17/00;systèmes ou méthodes de traitement de données spécialement adaptés à des fins administratives, commerciales, financières, de gestion, de surveillance ou de prévision G06Q;informatique médicale G16H)
75.
Magnetic resonance imaging apparatus and magnetic resonance imaging method
An MRI apparatus includes an imaging data acquiring unit and a blood flow information generating unit. The imaging data acquiring unit acquires imaging data from an imaging region including myocardium, without using a contrast medium, by applying a spatial selective excitation pulse to a region including at least a part of an ascending aorta for distinguishably displaying inflowing blood flowing into the imaging region. The blood flow information generating unit generates blood flow image data based on the imaging data.
A61B 5/029 - Mesure du débit de sang à la sortie du cœur, p. ex. volume éjecté par minute
G01R 33/563 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne de matériaux en mouvement, p. ex. angiographie à écoulement contrasté
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
G01R 33/385 - Systèmes pour produire, homogénéiser ou stabiliser le champ magnétique directeur ou le champ magnétique à gradient utilisant des bobines de champ magnétique à gradient
G01R 33/483 - Systèmes d'imagerie RMN avec sélection de signaux ou de spectres de régions particulières du volume, p. ex. spectroscopie in vivo
G01R 33/54 - Systèmes de traitement du signal, p. ex. utilisant des séquences d'impulsions
G01R 33/56 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne
76.
Medical image diagnostic apparatus and magnetic resonance imaging apparatus
According to one embodiment, a medical image diagnostic apparatus includes a gantry and a screen. The gantry for medical imaging includes a bore. The screen is insertable into the bore. A predetermined image is projected by a projector on the screen. The screen forms a shape that enables light generated by the projector to arrive at an inner wall of the gantry.
A photon-counting X-ray computed tomography (CT) apparatus according to an embodiment includes an X-ray tube, a detector, a photon counting circuitry, a correcting circuitry, and a calculating circuitry. The X-ray tube irradiates a subject with X-rays. The detector includes a plurality of detection elements that detect photons of X-rays incident on the detection elements. The photon counting circuitry counts the count of X-ray photons for each energy bin set in an X-ray energy distribution, for each position of the X-ray tube, and for each of the detection elements. The correcting circuitry corrects the count of the X-ray photons counted by the photon counting circuitry, based on a detection characteristic, of the detection elements. The calculating circuitry calculates the reliability of a pixel in a reconstruction image, based on the correction.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A magnetic resonance imaging apparatus according to an embodiment includes processing circuitry. The processing circuitry generates an image based on a magnetic resonance signal from a subject. The processing circuitry generates a susceptibility image representing magnetic susceptibility of the subject from a phase component contained in a plurality of pixels in the image. The processing circuitry generates an artifact component of the susceptibility image based on a frequency signal obtained by frequency transform of the susceptibility image. The processing circuitry generates an artifact component-removed susceptibility image by removing the artifact component from a susceptibility image generated based on the magnetic resonance signal.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A magnetic-resonance imaging apparatus of an embodiment includes acquiring circuitry and processing circuitry. The acquiring circuitry acquires a magnetic resonance signal that is generated from a subject. The processing circuitry creates a phase image based on the magnetic resonance signal. The processing circuitry sets a combination of a plurality of filters that are used to remove a phase variation derived from a background magnetic field according to a region in the phase image. The processing circuitry removes a phase variation derived from the background magnetic field from the phase image by using the combination of the filters.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
G06T 5/20 - Amélioration ou restauration d'image utilisant des opérateurs locaux
An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry acquires a plurality of frames representing ultrasound images starting with an initial frame in time series. The processing circuitry compares a current frame and a previous frame to the current frame for determining the similarity therebetween, and generates a reference frame based on weighting processing on the initial frame and the previous frame using results of the comparison. The processing circuitry implements tracking processing between the reference frame and the current frame.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
G06K 9/62 - Méthodes ou dispositions pour la reconnaissance utilisant des moyens électroniques
According to one embodiment, the X-ray image diagnosis apparatus comprises an X-ray generator, an X-ray restriction unit, a first X-ray detector, a second X-ray detector, and a drive. The X-ray generator generates X-rays to be applied to a subject. The X-ray restriction unit is disposed between the subject and the X-ray generator to restrict X-rays outside an opening region which is formed using a metal plate. The first X-ray detector has a first detection region in which X-rays that pass through the subject are detected. The second X-ray detector has a second detection region which is smaller than the first detection region and which has a high spatial resolution. The drive moves the first and second X-ray detectors so that the second detection region includes an irradiation region of the subject formed by the opening region.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
According to one embodiment, an X ray computed tomography imaging apparatus includes a gantry and a column. The gantry includes a first gantry intake port, and a second gantry intake port. The first gantry intake port draws air in the first state. The second gantry intake port draws air in the second state. The column includes a first column exhaust port and a second column exhaust port. The first column exhaust port communicates with the first gantry intake port in the first state. The second column exhaust port communicates with the second gantry intake port in the second state.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
According to one embodiment, a sample analyzer includes a detector, a first generator and a second generator. The detector detects a target substance bonded to a magnetic particle collected to a sensing area in the cartridge. The first generator applies a magnetic field for releasing the magnetic particles from the sensing area. The second generator includes a permanent magnet configured to generate a magnetic field for attracting the magnetic particles to the sensing area, a first soft magnetic material, and a second magnetic material. The second generator switches application and shut-off of a magnetic field by moving the permanent magnet relative to the first soft magnetic material and the second soft magnetic material.
G01N 33/543 - Tests immunologiquesTests faisant intervenir la formation de liaisons biospécifiquesMatériaux à cet effet avec un support insoluble pour l'immobilisation de composés immunochimiques
G01R 33/12 - Mesure de propriétés magnétiques des articles ou échantillons de solides ou de fluides
According to one embodiment, an X-ray computed tomography apparatus includes a gantry for imaging a subject by X-ray CT and a console communicably connected to the gantry. The gantry includes a gantry body and a column unit. The gantry body has a bore into which the subject is inserted when the subject is imaged by X-ray CT. The column unit includes a first column which supports the gantry body slidably in a direction perpendicular to a floor surface and a second column which supports the first column slidably in a vertical direction.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A medical image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to obtain a chronological transition of signal intensities for each of the pixels in a plurality of X-ray images chronologically acquired by using a contrast media. The processing circuitry is configured to correct the chronological transition of the signal intensities on the basis of a level of similarity between at least two mutually-different signal intensities within the chronological transition of the signal intensities.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A medical image processing apparatus comprises a memory configured to store medical image data representative of a tissue structure and a processing circuitry configured to operationally connect to the memory, extract regions from the medical image data by performing threshold processing of the medical image data using each of a plurality of threshold values, select regions meeting at least one predetermined condition from among the extracted regions, and determine a region representative of the tissue structure in the medical image data based on the selected regions.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
An apparatus for performing a non-local means (NLM) filter is described. The pixel of the NLM-filtered image are weighted averages of pixels from a noisy image, where the weights are a measure of the similarity between patches of the noisy image. The similarity weights can be calculated using a Kullback-Leibler or a Euclidean distance measure. The similarity weights can be based on filtered patches of the noisy image. The similarity weights can be based on a similarity measure between patches of an anatomical image corresponding to the noisy image. The similarity weights can be calculated using a time series of noisy images to increase the statistical sample size of the patches. The similarity weights can be calculated using a weighted sum of channel similarity weights calculated between patches of noisy image that have been band-pass filtered. The NLM-filtered image can also be blended with a non-NLM-filtered image.
A bed apparatus according to one embodiment, includes a top plate, a first slide actuator, an elevating actuator, and a second slide actuator. The first slide actuator supports the top plate to be slidable in the longitudinal direction. The elevating actuator supports the first slide actuator to be movable in the vertical direction, and is installed on the floor. The second slide actuator is provided between the first slide actuator and the elevating actuator and supports the first slide actuator such that the first slide actuator is slidable interlockingly with the vertical movement of the elevating actuator.
An image processing apparatus according to an embodiment includes storage circuitry and processing circuitry. The storage circuitry stores therein fluid resistance data representing a correlation among a vascular shape, a blood flow rate, and a pressure loss. The processing circuitry extracts, from three-dimensional image data in which a blood vessel of a subject is rendered, vascular shape data representing a shape of the blood vessel. The processing circuitry performs fluid analysis based on the vascular shape data and the blood flow rate and the pressure loss that correspond to the vascular shape data and that are correlated by the fluid resistance data to derive a functional index related to a blood circulation state in the blood vessel of the subject.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
G06K 9/46 - Extraction d'éléments ou de caractéristiques de l'image
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
According to one embodiment, a radiation diagnostic apparatus includes an X-ray tube, radiation detecting elements, signal processing substrates, and processing circuitry. The signal processing substrates performs processing including at least A/D conversion processing on outputted signals of the radiation detecting elements and outputs processed signals as the outputted signals subjected to the processing. The processing circuitry identifies a non-observing element or a non-observing substrate based on information on an imaging region included in imaging conditions of an object, the non-observing element being a radiation detecting element of the radiation detecting elements which corresponds to a region other than the imaging region, and the non-observing substrate being a signal processing substrate of the signal processing substrates which corresponds to the non-observing element. The processing circuitry further controls an operation of the non-observing element or an operation of the non-observing substrate in imaging under the imaging conditions.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A wireless RF coil unit according to the embodiment includes at least one receiver, a converter, a mixer and a filter. The at least one receiver receive a first analog signal having a first frequency synchronized with a first clock of a device different from the coil unit, and a second analog signal having a second frequency different from the first frequency. The converter converts the first analog signal into a first digital signal, and the second analog signal into a second digital signal, in accordance with a second clock of the coil unit. The mixer generates a multiplication signal of the first digital signal and the second digital signal. The filter passes a predetermined frequency component in the multiplication signal and outputs an intermediated frequency signal.
G01V 3/00 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation
G01R 33/36 - Détails électriques, p. ex. adaptations ou couplage de la bobine au récepteur
A radiation detector according to an embodiment includes a plurality of detector modules, a first and second radiation shield, and first supporter. The first radiation shield is provided in a first detector module and is arranged on a side opposite to a surface of a first detector pack of a first detector module on which radiation is incident. The second radiation shield is arranged to intersect with a path of radiation that passes through between a first detector pack and a second detector pack of a second detector module that is arranged adjacently to the first detector module. The first supporter supports the first radiation shield ouch that at least a part of the first radiation shield overlaps the second radiation shield on the path of radiation.
A magnetic resonance imaging apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to perform control to display a matrix representing inter-regional connectivity between a plurality of regions in a brain. The processing circuitry is configured to perform, based on an attention degree set to each of the regions, control to selectively display part of a plurality of regions arranged along a first axis of the matrix.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
A61B 5/05 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
95.
Image processing apparatus, image processing method, and storage medium
An image processing apparatus according to an embodiment includes a processing circuitry. The processing circuitry is configured to obtain images in a time series including images of a blood vessel of a subject and correlation information indicating a correlational relationship between physical indices of the blood vessel and function indices of the blood vessel related to vascular hemodynamics, calculate blood vessel morphology indices in a time series indicating morphology of the blood vessel of the subject, on a basis of the images in the time series, and identify a function index of the blood vessel of the subject, by using a physical index of the blood vessel of the subject obtained from the blood vessel morphology indices, on a basis of the correlation information.
A61B 5/05 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio
A61B 5/02 - Détection, mesure ou enregistrement en vue de l'évaluation du système cardio-vasculaire, p. ex. mesure du pouls, du rythme cardiaque, de la pression sanguine ou du débit sanguin
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
A61B 5/107 - Mesure de dimensions corporelles, p. ex. la taille du corps entier ou de parties de celui-ci
A61B 34/00 - Chirurgie assistée par ordinateurManipulateurs ou robots spécialement adaptés à l’utilisation en chirurgie
A61B 5/044 - Dispositifs de visualisation spécialement adaptés à cet effet
96.
Magnetic resonance imaging apparatus and image processing apparatus
A magnetic resonance imaging apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to specify a search start position of a matrix representing inter-regional connectivity between a plurality of regions in a brain based on a result of an analysis on an image of a subject and an attention degree set to each of the regions. The processing circuitry is configured to search the matrix using the search start position.
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
97.
X-ray diagnosis apparatus and image processing apparatus
A marker-coordinate detecting unit detects coordinates of a stent marker on a new image when the new image is stored in an image-data storage unit; and then a correction-image creating unit creates a correction image from the new image through, for example, image transformation processing, so as to match up the detected coordinates with reference coordinates that are coordinates of the stent marker already detected by the marker-coordinate detecting unit in a first frame. An image post-processing unit then creates an image for display by performing post-processing on the correction image created by the correction-image creating unit, the post-processing including high-frequency noise reduction filtering-processing, low-frequency component removal filtering-processing, and logarithmic-image creating processing; and then a system control unit performs control of displaying a moving image of an enlarged image of a set region that is set in the image for display, together with an original image.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A61B 6/12 - Agencements pour détecter ou localiser des corps étrangers
G06T 7/246 - Analyse du mouvement utilisant des procédés basés sur les caractéristiques, p. ex. le suivi des coins ou des segments
A magnetic resonance (MR) imaging apparatus of embodiments includes processing circuitry. The processing circuitry generates a third k-space data group including a first k-space data group and a second k-space data group, by adding the second k-space data group that is arranged in a second range adjacent to a first range, to the first k-space data group that is arranged in the first range and that is undersampled along at least one of the axes in k-space as well as in any axis that is different from the axes in the k-space. The processing circuitry generates an MR image group by performing a reconstruction process on the third k-space data group.
G06K 9/62 - Méthodes ou dispositions pour la reconnaissance utilisant des moyens électroniques
G01R 33/565 - Correction de distorsions d'image, p. ex. dues à des inhomogénéités de champ magnétique
G01R 33/561 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne par réduction du temps de balayage, c.-à-d. systèmes d'acquisition rapide, p. ex. utilisant des séquences d'impulsions écho-planar
99.
Medical image diagnostic apparatus and medical imaging apparatus
A medical image diagnostic apparatus according to an embodiment includes image generation circuitry, a touch panel, and control circuitry. The image generation circuitry generates a medical image based on data collected through scanning on a subject. The touch panel displays the medical image, and detects a tap operation, a long-press operation, or a flick operation on the displayed medical image. The control circuitry changes a parameter that affects the display of the medical image in a region relative to a position where the tap operation, the long-press operation, or the flick operation is detected, based on at least one of the strength of the tap operation, the number of times of the tap operation, the strength of the long-press operation, the long-press time of the long-press operation, the strength of the flick operation, the direction of the flick operation, and the speed of the flick operation.
G06F 3/041 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction
A61B 8/00 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores
G06F 3/0488 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] utilisant des caractéristiques spécifiques fournies par le périphérique d’entrée, p. ex. des fonctions commandées par la rotation d’une souris à deux capteurs, ou par la nature du périphérique d’entrée, p. ex. des gestes en fonction de la pression exercée enregistrée par une tablette numérique utilisant un écran tactile ou une tablette numérique, p. ex. entrée de commandes par des tracés gestuels
An MRI prep scan acquires plural sets of echo signals at a plurality of cardiac time phases which are mutually different from each other for each slice and used to generate a plurality of respectively corresponding prep images. Reference information is acquired and displayed for determining a first cardiac time phase and a second cardiac time phase on the basis of the prep images. The first and second cardiac time phases are set in response to an operator's specification. An imaging scan section for acquiring imaging echo signals by performing an imaging scan is performed upon each of the first and second cardiac time phases to acquire imaging echo signals. A first image is generated based on an echo signal of the first cardiac time phase and a second image is generated based on an echo signal of the second cardiac time phase. A differential image is acquired by calculating a difference between the first image and the second image.
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
G01R 33/567 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne débloquées par des signaux physiologiques
G01R 33/563 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne de matériaux en mouvement, p. ex. angiographie à écoulement contrasté
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
G01R 33/54 - Systèmes de traitement du signal, p. ex. utilisant des séquences d'impulsions
G01R 33/561 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne par réduction du temps de balayage, c.-à-d. systèmes d'acquisition rapide, p. ex. utilisant des séquences d'impulsions écho-planar
