Abstract

Embodiments of the present disclosure provide a method, a system, and a medium for attenuation correction. The method includes obtaining radiological coincidence event data of a target object using an imaging device; obtaining transmission data related to the target object; and obtaining an attenuation-corrected radiological image by performing an attenuation correction and reconstruction based on the transmission data and the radiological coincidence event data.

IPC Classes  ?

• G06T 11/00 - 2D [Two Dimensional] image generation

Abstract

A control device used for controlling a display of a medical image sequence on a display device may be provided. The control device may include a touch control panel. The touch control panel may include a plurality of predetermined regions corresponding to a plurality of gesture instructions. The control device may be configured to receive a target gesture instruction with respect to a target predetermined region among the plurality of predetermined regions. In response to the target gesture instruction, the control device may be configured to generate a control signal for controlling the display device to perform a target operation on the medical image sequence based on a corresponding relationship between the plurality of gesture instructions and a plurality of operations of the display device.

IPC Classes  ?

• G06F 3/04886 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
• G06F 3/0482 - Interaction with lists of selectable items, e.g. menus
• G06F 3/04845 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range for image manipulation, e.g. dragging, rotation, expansion or change of colour
• G16H 30/40 - ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing

Goods & Services

Computer software platforms, recorded or downloadable; data processing apparatus; Software as a medical device [SaMD], downloadable; Computer software applications, downloadable; computer software, recorded; Computer software for processing digital images; computer operating programs; Radiation detectors; Electrical and electronic components; Central processing units for processing information, data, sound or images; Optical apparatus and instruments; Detectors; Ultrasonic probes, other than for medical use; Scanning probes, other than for medical use; Ultrasonic detectors [non-medical]; Nuclear detectors for detecting radiation particles; Electromagnetic Measuring Detectors; Sensors, detectors and monitoring equipment; ultrasonic imaging apparatus, not for medical purposes; Scanning probe microscopes.

Goods & Services

Downloadable computer software platforms for controlling and operating a medical imaging apparatus; Recorded computer software platforms for controlling and operating a medical imaging apparatus; data processing apparatus; Downloadable medical software for processing and displaying images on ultrasound medical imaging machines; downloadable computer operating programs; Downloadable computer software for processing digital images; Radiation detectors; electronic components, namely detector components for the conversion of information based on ionizing irradiation being radiation detectors and radiation converters; Central processing units for processing information, data, sound or images; Optical scanners; Optical inspection apparatus; Ultrasound probes, not for medical use; Downloadable medical imaging software that records, monitors and analyzes data using a catheter based ultrasound imaging probe; Probes for scientific purposes; Electromagnetic measuring detectors

Abstract

A method for setting protocol parameters, including: obtaining a current setting value of a target protocol parameter in a scanning protocol to be verified, the current setting value being set by a user through a terminal device; determining a statistical distribution situation of historical setting values of the target protocol parameter and a relative position of the current setting value in the statistical distribution situation; and generating prompt information relating to parameter setting based on the relative position.

IPC Classes  ?

• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
• A61B 6/46 - Arrangements for interfacing with the operator or the patient

Abstract

Methods and systems for controlling a voltage of an X-ray imaging system and X-ray imaging systems are provided. A method includes: obtaining an initial tube voltage and a target tube voltage; and adjusting an actual tube voltage of the X-ray imaging system by controlling a working state of one or more devices of the X-ray imaging system based on the initial tube voltage and the target tube voltage in an inter-frame period of time. An output voltage of a high voltage generator is changed to the target tube voltage required when the X-ray imaging system starts imaging to obtain the target frame in the inter-frame period of time, so that the actual tube voltage is equal to or close to the target tube voltage when the target frame is loaded.

IPC Classes  ?

• H05G 1/10 - Power supply arrangements for feeding the X-ray tube

Abstract

Systems and methods for medical imaging are provided. The systems obtain motion state information of a region of interest (ROI) of a target object during a scanning process of the target object. The scanning process includes multiple scan phases that are scanned sequentially. The motion state information includes at least one of a movement probability or a movement level representing a position change of the target object in each scan phase. The systems perform at least one of during the scanning process, displaying the motion state information corresponding to at least one of multiple scan phases that has been scanned, or after the scanning process is completed, displaying the motion state information corresponding to the multiple scan phases and a medical image of the target object obtained in the scanning process.

IPC Classes  ?

• G06T 7/00 - Image analysis
• G06T 7/215 - Motion-based segmentation
• G06T 11/00 - 2D [Two Dimensional] image generation
• G06T 11/20 - Drawing from basic elements, e.g. lines or circles

Abstract

The present disclosure provides a system and method for generating radiation treatment plan. The method may include obtaining a plurality of beam angles of an arc for radiation treatment and preliminary segment parameters of control points associated with the plurality of beam angles. The method may also include grouping the plurality of beam angles into at least two sets so that each pair of two consecutive beam angles of the plurality of beam angles belong to different sets of the at least two sets, and determining the target segment parameters of the control points in each of the at least two sets by optimizing, based on a leaf motion constraint, the preliminary segment parameters of the control points associating with the plurality of beam angles. The method may further include generating a treatment plan based on the target segment parameters.

IPC Classes  ?

• A61N 5/10 - X-ray therapyGamma-ray therapyParticle-irradiation therapy

Abstract

The present disclosure provides a detection apparatus and an imaging apparatus. The detection apparatus may include an installation chamber, one or more detection units and a cooling assembly. The one or more detection units may be arranged in the installation chamber, and the installation chamber may include an air inlet and an air outlet. The cooling assembly may be configured to cool the one or more detection units.

IPC Classes  ?

• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment

Abstract

Embodiments of the present disclosure provide a magnetic resonance imaging (MRI) system and method. The MRI system includes a signal receiving assembly and a data processor. The signal receiving assembly is configured to acquire a nuclear spin magnetic field signal of an object. The data processor is configured to generate a magnetic resonance image of the object based on the nuclear spin magnetic field signal. The signal receiving assembly includes a magnetic sensor array.

IPC Classes  ?

• G06T 11/00 - 2D [Two Dimensional] image generation
• G06T 7/00 - Image analysis

Abstract

The present application relates to the technical field of wireless power transmission. Provided are a wireless slip ring magnetic coupling structure and a computed tomography system. The magnetic coupling structure comprises a rotor and a stator. The rotor comprises an annular rotating rack (6), a secondary winding coil (8) and a baffle (7), wherein the secondary winding coil is wound on the rotating rack along a first annular groove (10) of the rotating rack and is fixed by means of the baffle. The stator comprises an annular fixed rack (4), a primary winding coil (5) and a plurality of discrete C-shaped magnetic cores (13), wherein the fixed rack is coaxial with the rotating rack and is located on the radial outer side of the rotating rack or is arranged parallel to the rotating rack in an axial direction, the primary winding coil is wound on the fixed platform along a second annular groove (9) of the fixed rack, and the area of the rotating rack where the secondary winding coil is wound and the fixed rack pass through the C-shaped magnetic cores. By means of the design, the power transmission performance can be improved, and the mechanical structure is more stable, such that the structure can be practically applied to products with a high rotating speed, a high frequency and a high power.

IPC Classes  ?

• H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling

Abstract

The present disclosure discloses a wireless power transmission apparatus and an imaging device comprising the same. The wireless power transmission apparatus comprises: a first annular structure, provided with a first magnetic core assembly and a first framework, wherein the first magnetic core assembly is provided on a circumference of the first annular structure, the first framework is wound with a first winding, and the first winding passes through a window of the magnetic core in the first magnetic core assembly; and a second annular structure, provided with a second framework, wherein the second framework is wound with a second winding, and the second winding passes through the window of the magnetic core in the first magnetic core assembly; and the first winding is used for receiving an alternating voltage and transmitting the alternating voltage to the second winding.

IPC Classes  ?

• H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power
• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
• H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling

Goods & Services

Medical apparatus and instruments, namely, computerised tomography apparatus and their structural components, digital medical X-ray imaging apparatus and their structural components, X-ray diagnostic apparatus and their structural components; Medical imaging apparatus; Computed tomography [CT] apparatus; Wireless digital detector for use with x-ray systems; X-ray radiographic imaging systems comprised of an x-ray source, detector panel and software; detector panels for radiological panels; Electric medical apparatus, in particular detectors for medical imaging devices; Detectors for medical applications.

Abstract

A controlling system method docking for a mobile patient bed with a medical device. The method may include: obtaining, based on a docking instruction, positioning information of a target; controlling, based on the positioning information of the target, a movement of the mobile patient bed; and in response to determining that the mobile patient bed moves into a docking region of the medical device, controlling the mobile patient bed to dock with the medical device using a first docking structure on the mobile patient bed and a second docking structure on the medical device, wherein the first docking structure and the second docking structure are mechanical connection structures. By adopting the embodiments of the present disclosure, an operator may carry a mobile device to move, and control the movement of the patient bed by continuously changing a position of the mobile device, or may enable the patient bed to obtain an automatically planned path through the positioning information of the medical device and to move along the automatically planned path.

IPC Classes  ?

• A61G 7/08 - Apparatus for transporting beds

Abstract

The present disclosure provides a system and method for couch position calibration. The method may include obtaining one or more first images of a couch at one or more first locations in a first device, each of the one or more first images corresponding to one of the one or more first locations, wherein the couch includes a mark, and the mark intersects a first reference plane of the first device at a plurality of first points of the mark; determining, in each of the one or more first images, a first position of a representation of each of the plurality of first points; obtaining correlation information between the first position and actual position of each of the plurality of first points; and determining one or more calibration images based on the correlation information and the one or more first images.

IPC Classes  ?

• G06V 20/50 - Context or environment of the image
• A61N 5/10 - X-ray therapyGamma-ray therapyParticle-irradiation therapy

Goods & Services

Medical apparatus and instruments, namely, computed tomography apparatus and their structural components, digital medical X-ray imaging apparatus and their structural components, X-ray diagnostic apparatus and their structural components; Medical imaging apparatus; Medical equipment, namely, computed tomography (CT) apparatus; tomographs for medical purposes; CT scanner component, namely, integral component of the image chain of a CT scanner for capturing X-rays and converting them to information that creates the image; Wireless digital detector, namely, a medical imaging device for use with x-ray systems; X-ray apparatuses for medical purposes, namely, x-ray radiographic imaging systems comprised of an x-ray source, detector panel and software; X-ray apparatus for medical purposes, namely, detector panels for radiological panels; Electric medical apparatus, in particular photon detectors and X-ray detectors for medical imaging devices; Detectors for medical applications

Goods & Services

beds specially made for medical purposes; Medical apparatus and instruments, namely, medical imaging apparatus; radiotherapy apparatus; X-ray apparatus for medical purposes; Radiological apparatus for medical purposes; tomographs for medical purposes; ultrasound apparatus for medical purposes; magnetic resonance imaging apparatus for medical purposes; Diagnostic apparatus for medical purposes, namely, medical and electromedical magnetic resonance imaging machines and their components, computed tomography machines and their structural components, digital medical X-ray imaging apparatus and their structural components, medical devices for the treatment of cardiovascular diseases and tumors and their structural components, medical imaging devices which employ image reconstruction technology and their structural components; Medical apparatus and instruments, namely, medical and electromedical magnetic resonance imaging machines and their components, computed tomography machines and their structural components, digital medical X-ray imaging apparatus and their structural components, medical devices for the treatment of cardiovascular diseases and tumors and their structural components, medical imaging devices which employ image reconstruction technology and their structural components

Goods & Services

Diagnostic apparatus for medical purposes; Radiotherapy apparatus; Radiological apparatus for medical purposes; Tomographs for medical purposes; X-ray apparatus for medical purposes; Medical imaging apparatus; X-ray diagnostic apparatus; Radioisotope therapy apparatus and instruments; Apparatus and installations for the production of X-rays, for medical purposes; X-ray CT scanners; Computed tomography (CT) apparatus; Beds specially made for medical purposes.

Goods & Services

Radiotherapy apparatus; Radiological apparatus for medical purposes; Radiation therapy machines and related recorded software sold as a unit; Medical equipment, namely, computed tomography (CT) apparatus; Single-photon emission computed tomography (SPECT) scanners for medical purposes; Tomographs for medical purposes; X-ray apparatus for medical purposes; Medical imaging apparatus; Medical diagnostic apparatus for testing tumors, nerves and heart diseases; X-ray diagnostic apparatus; Medical apparatus and instruments for diagnostic radiopharmaceutical use; Medical apparatus and instruments for use in radiotherapy procedures; Medical imaging apparatus for use in the field of radiology; Radioisotope therapy apparatus and instruments; Beds specially made for medical purposes

Goods & Services

beds specially made for medical purposes; Medical apparatus and instruments, namely medical imaging apparatus; radiotherapy apparatus; X-ray apparatus for medical purposes; Radiological apparatus for medical purposes; tomographs for medical purposes; ultrasound apparatus for medical purposes; magnetic resonance imaging apparatus for medical purposes; Diagnostic apparatus for medical puposes, namely, computed tomography machines and their structural components, digital medical X-ray imaging apparatus and their structural components, medical devices for the treatment of cardiovascular diseases and tumors and their structural components, medical imaging devices which employ image reconstruction technology and their structural components; Medical apparatus and instruments, namely, computed tomography machines and their structural components, digital medical X-ray imaging apparatus and their structural components, medical devices for the treatment of cardiovascular diseases and tumors and their structural components, medical imaging devices which employ image reconstruction technology and their structural components

Goods & Services

beds specially made for medical purposes; computed tomography [CT] apparatus; radiotherapy apparatus; X-ray apparatus for medical purposes; Radiological apparatus for medical purposes; tomographs for medical purposes; ultrasound apparatus for medical purposes; magnetic resonance imaging [MRI] apparatus for medical purposes; diagnostic apparatus for medical purposes; medical apparatus and instruments.

Goods & Services

Computer programs [downloadable software]; computer software applications, downloadable; computer software, recorded; computer software platforms, recorded or downloadable; data processing apparatus; Central processing units for processing information, data, sound or images; Computer programs for editing images, sound and video; Computer software for controlling self-service terminals; Computer programs for enabling access or entrance control; software as a medical device [SaMD], downloadable. research and development of new products for others; conducting technical project studies; Medical research laboratory services; clinical trials; software as a service [SaaS]; maintenance of computer software; Development and creation of computer programmes for data processing; development of computer platforms; electronic data storage; platform as a service [PaaS].

Goods & Services

beds specially made for medical purposes; computed tomography [CT] apparatus; radiotherapy apparatus; X-ray apparatus for medical purposes; Radiological apparatus for medical purposes; tomographs for medical purposes; ultrasound apparatus for medical purposes; magnetic resonance imaging [MRI] apparatus for medical purposes; diagnostic apparatus for medical purposes; medical apparatus and instruments.

Goods & Services

Image scanners; Magnetic resonance imaging apparatus, not for medical purposes; Data processing apparatus; Recorded computer software using artificial intelligence (AI) for use in magnetic resonance imaging; Downloadable computer programs using artificial intelligence (AI) for use in magnetic resonance imaging; Downloadable computer software using artificial intelligence (AI) for use in magnetic resonance imaging; Recorded computer programs using artificial intelligence (AI) for use in magnetic resonance imaging; Recorded computer operating software; Downloadable computer software for processing digital images; Recorded computer programs for editing images, sound, and video; Central processing units for processing information, data, sound or images; Downloadable image files containing medical diagnostic information; Downloadable Software as a Medical Device (SaMD) for wireless remote control of and synchronization of computed tomography (CT) apparatus

Goods & Services

Computer software applications, downloadable; Software as a medical device [SaMD], downloadable; Computer software relating to the medical field; Software for dosimetry purposes in the field of radiotherapy; Computer software, recorded; Computer software platforms, recorded or downloadable; Computer operating programs, recorded; Computer programs, recorded; Computer programs, downloadable; Couplers [data processing equipment]; Data processing apparatus; Computer hardware.

Goods & Services

Downloadable computer software applications for radiation therapy quality control for use in machine malfunctions detection and radiotherapy plan status monitoring; Recorded computer software for use in radiation therapy quality control for machine malfunctions detection and radiotherapy plan status monitoring; Downloadable Software as a Medical Device (SaMD) for use as a medical instrument for radiation therapy quality control; Recorded computer operating system software; Downloadable computer software platforms for radiation therapy quality control; Recorded computer software platforms for radiation therapy quality control; Recorded computer programs for use in machine malfunctions detection and radiotherapy plan status monitoring; Downloadable computer programs for use in machine malfunctions detection and radiotherapy plan status monitoring; Data processing equipment, namely, couplers; Computer hardware; Data processing apparatus; Computer operating programs, recorded

Abstract

A scanning apparatus (110), a medical image obtaining method, and a medical image obtaining system (100) are provided. The scanning apparatus (110) comprises a gantry, a controller, a C-shaped arm, a radiation source (112), and a detector (113). The radiation source (112) and the detector (113) are arranged at both ends of the C-shaped arm. The C-shaped arm is connected to the gantry. The controller is configured to control a motion of the gantry to drive the C-shaped arm to move so as to scan a target object.

IPC Classes  ?

• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
• A61B 6/03 - Computed tomography [CT]
• A61B 6/40 - Arrangements for generating radiation specially adapted for radiation diagnosis

Abstract

An electron gun may include a cathode with an emitting surface configured to emit electrons. The cathode may include a through hole that goes through the emitting surface and is configured to allow back-streaming electrons of the emitted electrons to pass through. The electron gun may also include an anode configured to attract the emitted electrons from the cathode to the anode and focus the emitted electrons into an electron beam. The electron gun may also include a grid structure configured to facilitate the focusing of the emitted electrons, the grid structure being positioned corresponding to the through hole.

IPC Classes  ?

• H01J 3/02 - Electron guns
• H01J 1/02 - Main electrodes

Abstract

The embodiments of the present disclosure provide an intervention operation robot and a system for intervention operation control. The system comprises: an injection auxiliary device configured to assist an injection instrument for injection; an intervention operation robot configured to convey an intervention instrument; an image acquisition device configured to acquire one or more images; and a control device configured to generate one or more control instructions based on feedback information from at least one of the injection auxiliary device, the intervention operation robot, and the image acquisition device, and send the one or more control instructions to at least one of the injection auxiliary device, the intervention operation robot, and the image acquisition device. The intervention operation robot includes an instrument conveying member and a robotic arm.

IPC Classes  ?

• A61B 34/30 - Surgical robots
• A61M 5/00 - Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular wayAccessories therefor, e.g. filling or cleaning devices, arm rests
• A61B 17/00 - Surgical instruments, devices or methods

Goods & Services

Radiotherapy apparatus; Radiological apparatus for medical purposes; Medical equipment, namely, computed tomography (CT) apparatus; Single-photon emission computed tomography (SPECT) scanners for medical purposes; Tomographs for medical purposes; X-ray apparatus for medical purposes; Medical imaging apparatus; Medical diagnostic apparatus for testing tumors, nerves and heart diseases; X-ray diagnostic apparatus; Medical apparatus and instruments for diagnostic radiopharmaceutical use; Medical apparatus and instruments for use in radiotherapy procedures; Medical imaging apparatus for use in the field of radiology; Radioisotope therapy apparatus and instruments; Beds specially made for medical purposes; Nuclear medicine diagnostic imaging apparatus; Medical apparatus and instrument for diagnostic use, namely, apparatus for medical diagnostic testing in the fields of cancer or other tissue-based diagnostic testing, cytology and cell-based testing; Medical apparatus and instruments, namely, multimodal imaging apparatus with single photon emission computed tomography and computed tomography

Goods & Services

diagnostic apparatus for medical purposes; medical apparatus and instruments; magnetic resonance imaging (MRI) diagnostic apparatus; Magnetic resonance imaging [MRI] apparatus for medical purposes; Radioisotope therapy apparatus and instruments; Ultrasound apparatus for medical purposes; Apparatus for magnet therapy; High frequency electromagnetic therapy apparatus; Magnetic resonance imaging (MRI) apparatus; beds specially made for medical purposes.

Goods & Services

Diagnostic apparatus for medical purposes; Radiotherapy apparatus; Radiological apparatus for medical purposes; X-ray apparatus for medical purposes; Medical imaging apparatus; Diagnostic imaging apparatus for medical use; X-ray diagnostic apparatus; Apparatus and installations for the production of X-rays, for medical purposes; Apparatus for analysing images [for medical use]; Beds specially made for medical purposes.

Goods & Services

Diagnostic apparatus for medical purposes, namely, medical and electromedical magnetic resonance imaging machines and their structural components, medical imaging devices which employ image reconstruction technology and their structural components; medical apparatus and instruments, namely, medical and electromedical magnetic resonance imaging machines and their structural components, medical imaging devices which employ image reconstruction technology and their structural components; radiological apparatus for diagnostic and medical purposes, namely, magnetic resonance imager; magnetic resonance imaging apparatus for medical purposes; radioisotope therapy apparatus and instruments; ultrasound apparatus for medical purposes; apparatus for magnet therapy; high frequency electromagnetic therapy apparatus; nuclear medicine diagnostic imaging apparatus; beds specially made for medical purposes

Abstract

A method for correcting a digital subtraction angiography image is disclosed. The method includes: performing a first registration on a first scan image and a reference image to obtain a second scan image; performing a second registration on a region of interest of the second scan image and a region of interest of the reference image to obtain a third scan image; calculating a buffer area between the third scan image and the second scan image, and performing transition processing on the buffer area, to obtain a processed buffer area image; and fusing the second scan image, the third scan image, and the processed buffer area image to obtain a corrected scan image. A computer device and a non-volatile computer readable storage medium are also disclosed.

IPC Classes  ?

• G06T 7/33 - Determination of transform parameters for the alignment of images, i.e. image registration using feature-based methods
• G06T 3/02 - Affine transformations

Abstract

The embodiments of the present description provide methods and system for constructing four-dimensional magnetic resonance images. A method comprises: determining a data acquisition mode of each phase on the basis of a real-time motion signal of an object; acquiring original data of the object according to the data acquisition mode; classifying the original data to obtain data of multiple categories, wherein data of each category corresponds to a different phase; and performing image reconstruction on the data of the multiple categories to obtain a four-dimensional magnetic resonance image.

IPC Classes  ?

• G01R 33/48 - NMR imaging systems
• A61B 5/055 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fieldsMeasuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging

Abstract

One or more embodiments of the present disclosure relate to a CT topogram scan method, system and device. The CT topogram scan method is applied to a dual-source CT system or a multi-source CT system. The dual-source CT system or the multi-source CT system includes a first imaging device and a second imaging device. The CT topogram scan method comprises: obtaining a spatial parameter of an object; determining a scanning scheme based on the spatial parameter, wherein in the scanning scheme, the object is located within a first scanning field of view (FOV) of the first imaging device, and the object is located within a second scanning FOV of the second imaging device;and scanning the object according to the scanning scheme.

IPC Classes  ?

• A61B 6/03 - Computed tomography [CT]

Abstract

A therapeutic ultrasound system may be provided. The therapeutic ultrasound system may comprise a therapeutic ultrasound probe. The therapeutic ultrasound probe may comprise treatment blocks each of which includes one or more ultrasonic transducer arrays. Each of the one or more ultrasonic transducer arrays may include one or more ultrasonic transducers. The treatment blocks may be movable to rotate around a reference axis and/or adjust an angle with respect to the reference axis.

IPC Classes  ?

• A61N 7/00 - Ultrasound therapy

Abstract

Embodiments of the present disclosure provide a medical system and method. The medical system includes an equipment room, a plurality of medical rooms, the imaging device, and a plurality of shielding doors. The imaging device includes the movable imaging component. The movable imaging component is shared by the plurality of medical rooms, and the movable imaging component is configured to move between the equipment room and the plurality of medical rooms. For each of the plurality of shielding doors, the shielding door is provided between one of the plurality of medical rooms and the equipment room.

IPC Classes  ?

• A61B 6/50 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body partsApparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific clinical applications
• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
• A61B 6/10 - Safety means specially adapted therefor
• G16H 40/20 - ICT specially adapted for the management or administration of healthcare resources or facilitiesICT specially adapted for the management or operation of medical equipment or devices for the management or administration of healthcare resources or facilities, e.g. managing hospital staff or surgery rooms
• G16H 40/63 - ICT specially adapted for the management or administration of healthcare resources or facilitiesICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for local operation

Abstract

The present disclosure provides a high-voltage generator, which includes a high-voltage transformer. The high-voltage transformer includes M magnetic core assembly, M primary windings, and M*N secondary windings. The magnetic core assembly includes M magnetic pillar sets. The M primary windings are respectively wound on the M magnetic pillar sets. N layers of the secondary windings are concentrically wound on each of the primary windings, and M, N are positive integers. The M primary windings are configured such that first ends of the M primary windings receive the input of the M-phase AC power and second ends of the M primary windings are interconnected.

IPC Classes  ?

• H05G 1/20 - Power supply arrangements for feeding the X-ray tube with high-frequency ACPower supply arrangements for feeding the X-ray tube with pulse trains
• H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H05G 1/12 - Power supply arrangements for feeding the X-ray tube with DC or rectified single-phase AC

Abstract

A gradient coil assembly and a magnetic resonance imaging system comprising a Z-axis gradient coil are provided. The gradient coil assembly comprises a Z-axis gradient coil. The Z-axis gradient coil comprising a first coil and a second coil, the first coil and the second coil being arranged along an axial direction of the Z-axis gradient coil. The first coil comprises a first subcoil and a second subcoil. The first subcoil and the second subcoil extend alongside each other. The second coil comprises a third subcoil and a fourth subcoil. The third subcoil and the fourth subcoil extend alongside each other.

IPC Classes  ?

• G01R 33/385 - Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
• G01R 33/421 - Screening of main or gradient magnetic field

Abstract

The present disclosure provides a transformer and an X-ray system. The transformer includes M primary windings and M*N distributed magnetic cores. The M primary windings are supplied with a M-phase alternating current, a first end of each of the M primary windings is supplied with an alternating current of a corresponding phase in the M-phase alternating current, and second ends of the M primary windings are connected to each other after passing through a plurality of distributed magnetic cores in the M*N distributed magnetic cores. The secondary winding on each distributed magnetic core is connected to a corresponding one of a plurality of rectifier units connected in series to output a secondary voltage.

IPC Classes  ?

• H01F 27/28 - CoilsWindingsConductive connections
• H01F 27/24 - Magnetic cores
• H05G 2/00 - Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma

Abstract

A particle accelerator includes an acceleration cavity chain and at least one energy switch side cavity. The energy switch side cavity is communicated with two adjacent main cavities in the acceleration cavity chain through coupling openings respectively. The energy switch side cavity includes a pair of asymmetric side cavity noses arranged therein and an energy switch probe arranged at a top position thereof. The energy switch probe is configured to extend from the top position of the energy switch side cavity to a space between the pair of side cavity noses.

IPC Classes  ?

• A61N 5/10 - X-ray therapyGamma-ray therapyParticle-irradiation therapy
• H05H 7/22 - Details of linear accelerators, e.g. drift tubes
• H05H 9/04 - Standing-wave linear accelerators

Abstract

The present application relates to a fragrance release method and apparatus, a fragrance release system, and a storage medium. The method comprises: acquiring multi-modal data of a target object in a target medical space of a medical device, wherein the multi-modal data comprises at least one of physiological information, facial expression information, and vocal information; processing the multi-modal data using an emotion recognition model to obtain an emotion recognition result of the target object; and determining, on the basis of examination information and the emotion recognition results of the target object, a target fragrance release mode for releasing fragrance for the target object.

IPC Classes  ?

• A61M 21/00 - Other devices or methods to cause a change in the state of consciousnessDevices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis

Abstract

The embodiments of the present disclosure provide medical imaging methods and systems. A method, implemented by a computing device including at least one processor and at least one storage device, comprises: obtaining a first target image of a target subject, the first target image being taken by a camera system; determining a marker in the first target image, the marker being configured to characterize a scanning position; and determining a scanning range of a medical imaging device for scanning the target subject based on the marker.

IPC Classes  ?

• A61B 6/03 - Computed tomography [CT]
• A61B 6/04 - Positioning of patientsTiltable beds or the like
• G06T 7/00 - Image analysis
• H04N 17/00 - Diagnosis, testing or measuring for television systems or their details
• A61B 5/11 - Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb

Abstract

A data transmission system for MR imaging is provided. The system comprises: a signal converting device configured to receive analog MR signals collected by a receiver coil in an MR scan, transform the analog MR signals into digital MR signals, generate transmission data based on the digital MR signals, and transmit the transmission data to a signal processing device via a first communication link between the signal converting device and the signal processing device; and the signal processing device configured to receive the transmission data from the signal converting device via the first communication link and resolve the digital MR signals from the transmission data, wherein the signal converting device and the signal processing device are disposed at different circuit boards.

IPC Classes  ?

• G01R 33/36 - Electrical details, e.g. matching or coupling of the coil to the receiver
• A61B 5/055 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fieldsMeasuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging

Goods & Services

Medical apparatus and instruments; Diagnostic apparatus for medical purposes; Radiotherapy apparatus; Radiological apparatus for medical purposes; Tomographs for medical purposes; X-ray apparatus for medical purposes; Medical imaging apparatus; X-ray diagnostic apparatus; Radioisotope therapy apparatus and instruments; Apparatus and installations for the production of X-rays, for medical purposes; X-ray CT scanners; Computed tomography (CT) apparatus; Beds specially made for medical purposes.

Goods & Services

Medical apparatus and instruments; diagnostic apparatus for medical purposes; radiotherapy apparatus; radiological apparatus for medical purposes; X-ray apparatus for medical purposes; Medical imaging apparatus; Diagnostic imaging apparatus for medical use; X-ray diagnostic apparatus; apparatus and installations for the production of X-rays, for medical purposes; Apparatus for analysing images [for medical use]; beds specially made for medical purposes.

Goods & Services

Medical apparatus and instruments; diagnostic apparatus for medical purposes; ultrasonic medical diagnostic apparatus; tomographs for medical purposes; radiological apparatus for medical purposes; ultrasonic imaging apparatus for medical purposes; medical ultrasound apparatus; ultrasound apparatus for medical purposes; x-ray apparatus for medical purposes; magnetic resonance imaging [MRI] apparatus for medical purposes.

Goods & Services

Medical apparatus and instruments; diagnostic apparatus for medical purposes; ultrasonic medical diagnostic apparatus; cardiac probes; radiological apparatus for medical purposes; ultrasonic imaging apparatus for medical purposes; ultrasonic probes for medical use; ultrasound apparatus for medical purposes; radiotherapy apparatus; magnetic resonance imaging [MRI] apparatus for medical purposes.

Abstract

A data link detection method is disclosed. The method includes: determining a target data sub-link in a data link, the data link including at least one data sub-link; sending a detection instruction to a sending component in the target data sub-link to instruct the sending component to send detection data to a receiving component in the target data sub-link for detection; and receiving a detection result corresponding to the target data sub-link. A PET/CT imaging system and a readable storage medium are disclosed.

IPC Classes  ?

• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
• A61B 6/03 - Computed tomography [CT]
• G01T 1/29 - Measurement performed on radiation beams, e.g. position or section of the beamMeasurement of spatial distribution of radiation

Abstract

An object positioning device provided by the present disclosure includes at least one coil and a positioning plate. At least a part of the at least one coil is configured to be embedded in the positioning plate.

IPC Classes  ?

• G01R 33/34 - Constructional details, e.g. resonators
• A61B 5/00 - Measuring for diagnostic purposes Identification of persons

Abstract

The present disclosure provides methods and systems for image processing. The methods may include obtaining multiple black blood images of a first region of a target subject. The methods may further include generating a first segment result by inputting the black blood images into multiple input channels of a blood vessel segmentation model. The first segment result may include blood vessel segments of first blood vessels in the first region, the blood vessel segmentation model may be a trained machine learning model, and each of the black blood images may be randomly designated as an input image of one of the input channels.

IPC Classes  ?

• G06T 7/00 - Image analysis
• G06T 5/50 - Image enhancement or restoration using two or more images, e.g. averaging or subtraction
• G06T 7/12 - Edge-based segmentation
• G06T 7/30 - Determination of transform parameters for the alignment of images, i.e. image registration
• G06T 7/66 - Analysis of geometric attributes of image moments or centre of gravity
• G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]
• G16H 30/40 - ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing

Abstract

The present disclosure provides a system and method for image reconstruction. The method may include obtaining training samples, the training samples including at least one sample first image generated based on a first tracer, at least one reference first image each of which corresponds to one of the at least one sample first image and has a higher image quality than the corresponding sample first image, at least one sample second image generated based on a second tracer different from the first tracer, and at least one reference second image each of which corresponds to one of the at least one sample second images and has a higher image quality than the corresponding sample second image; and generating a trained image processing model by training a preliminary model using the training samples.

IPC Classes  ?

• G06T 7/00 - Image analysis
• G06T 11/00 - 2D [Two Dimensional] image generation

Goods & Services

Medical apparatus and instruments; diagnostic apparatus for medical purposes; ultrasonic medical diagnostic apparatus; tomographs for medical purposes; radiological apparatus for medical purposes; ultrasonic imaging apparatus for medical purposes; medical ultrasound apparatus; ultrasound apparatus for medical purposes; x-ray apparatus for medical purposes; radiotherapy apparatus; magnetic resonance imaging [MRI] apparatus for medical purposes.

Abstract

The present disclosure provides systems, devices, and methods for image registration. The methods include obtaining a first medical image and a second medical image of a target subject, the first medical image indicating blood vessels of the target subject, the second medical image indicating an interventional tool in the target subject; determining an initial registration relationship between the first medical image and the second medical image; determining, based on a first physiological feature of the target subject at an acquisition time of the second medical image, a first motion state of the blood vessels at the acquisition time; and determining a target registration relationship between the first medical image and the second medical image based on the initial registration relationship and the first motion state of the blood vessels.

IPC Classes  ?

• G06T 7/33 - Determination of transform parameters for the alignment of images, i.e. image registration using feature-based methods
• G06T 7/00 - Image analysis
• G06T 7/12 - Edge-based segmentation
• G06T 7/246 - Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods

Goods & Services

Radiotherapy apparatus; Radiological apparatus for medical purposes; Medical imaging apparatus; X-ray apparatus for medical purposes; X-ray diagnostic apparatus; Medical apparatus and instruments for use in digital radiography procedures; Medical imaging apparatus for use in the field of radiology; Medical imaging apparatus for diagnosing medical conditions; Medical image processors; Beds specially made for medical purposes

Goods & Services

Radiotherapy apparatus; Radiological apparatus for medical purposes; Medical imaging apparatus; X-ray apparatus for medical purposes; X-ray diagnostic apparatus; Medical diagnostic apparatus for testing chest and bones; Medical apparatus and instruments for use in digital radiography procedures; Medical imaging apparatus for use in the field of radiology; Medical imaging apparatus for diagnosing medical conditions; Medical image processors; Beds specially made for medical purposes

Abstract

A generating method, a system, and a device of a scanning image, and a computer-readable storage medium are provided. The method includes: scanning different positions of a target object, respectively, by changing a passing region of an imaging beam emitted from a scanning imaging source, obtaining a plurality of scanning data of the target object, and obtaining a scanning image corresponding to the target object based on the plurality of scanning data of the target object.

IPC Classes  ?

• G21K 1/04 - Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers

Abstract

A reconstructing method and a reconstructing apparatus of a medical image, a computer device, and a storage medium are provided. The method includes: acquiring a signal data set obtained by performing signal detection on a detected object via a detector array, determining an effective detecting range of each detector in the detector array when a detecting scenario is a target scenario, and extracting target signal data of each detector within a respective effective detecting range from the signal data set, and reconstructing a medical detecting image of the detected object based on the target signal data. The detector array is configured to siege the detected object in three dimensions and detect a trace signal emitted by the detected object to obtain the signal data set.

IPC Classes  ?

• G06T 11/00 - 2D [Two Dimensional] image generation

Abstract

A method for calibrating a photoelectric conversion module of a gamma detector is provided, where the gamma detector includes a scintillation crystal and a plurality of photomultiplier tubes. The method includes acquiring a plurality of sets of background data, each including photoelectric signals generated by the photomultiplier tubes based on an interaction of the scintillation crystal with a cosmic ray, determining interaction positions based on the background data, where the scintillation crystal interacts with cosmic rays respectively, determining target regions of the photomultiplier tubes based on positions of the photomultiplier tubes, respectively, obtaining an energy spectrum of each of the photomultiplier tubes based on the background data corresponding to the interaction positions that fall within the target region of each of the photomultiplier tubes, and calibrating a relative gain of each of the photomultiplier tubes based on the corresponding energy spectrum.

IPC Classes  ?

• G01T 7/00 - Details of radiation-measuring instruments
• G01T 1/20 - Measuring radiation intensity with scintillation detectors

Abstract

The present disclosure provides a method for evaluating a hemodynamic characteristic, comprising: obtaining a medical image of a subject, the medical image including at least a portion of a vascular structure; determining at least one property parameter of the vascular structure by inputting the medical image into a trained parameter determination model; and determining at least one hemodynamic characteristic of the vascular structure by inputting the at least one property parameter into a vascular fluid dynamic model.

IPC Classes  ?

• G16H 50/50 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for simulation or modelling of medical disorders

Goods & Services

Computer programs, downloadable; computer software platforms, recorded or downloadable; data processing apparatus; downloadable image files; computer operating programs, recorded; software as a medical device [SaMD], downloadable; monitors [computer programs]; computer software, recorded; computer programs, recorded; computer software applications, downloadable.

Abstract

A method for artifact removal of a medical image and a DSA system are provided. The method includes: acquiring an image set of a collected position in a target portion, the image set including a mask image and a contrast image in one-to-one correspondence; performing global registration on the mask image and the contrast image of the collected position, and obtaining a first registration result; performing local registration on the image set after the global registration based on the first registration result, and obtaining a corresponding second registration result; and performing subtraction on the image set after the local registration based on the second registration result, and obtaining a subtraction image of the target portion.

IPC Classes  ?

• G06T 5/50 - Image enhancement or restoration using two or more images, e.g. averaging or subtraction
• G06T 7/30 - Determination of transform parameters for the alignment of images, i.e. image registration
• G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]
• G06V 10/75 - Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video featuresCoarse-fine approaches, e.g. multi-scale approachesImage or video pattern matchingProximity measures in feature spaces using context analysisSelection of dictionaries

Abstract

Embodiments of the present disclosure provide a method for preparing a detector module, a photon counting detector, and a device. The method for preparing a detector module comprises disposing a first conductive adhesive on a solder pad on a first surface of a first substrate; solidifying the first conductive adhesive to form studs; disposing a second conductive adhesive on the studs; forming a detector unit by connecting a crystal unit and the first surface of the first substrate through the second conductive adhesive; and forming the detector module based on the detector unit.

IPC Classes  ?

• H01L 21/60 - Attaching leads or other conductive members, to be used for carrying current to or from the device in operation

Abstract

Provided in the embodiments of this specification are an apparatus and method for tracking the position of a radioactive source. The apparatus for tracking the position of a radioactive source (400) comprises: at least one incident window (410), the incident window (410) being arranged on a filtering apparatus (330) of a radioactive source (310); and a detector (420), configured for receiving rays passing through the incident window (410) so as to determine an change in the position of the radioactive source (310) on the basis of the received rays.

IPC Classes  ?

• A61B 6/06 - Diaphragms
• A61B 6/40 - Arrangements for generating radiation specially adapted for radiation diagnosis
• A61B 6/42 - Arrangements for detecting radiation specially adapted for radiation diagnosis
• A61B 6/58 - Testing, adjusting or calibrating thereof
• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment

Abstract

Disclosed is a radiation therapy system and shim method thereof. The system includes: a magnet container, a therapy assembly including one or more magnetic components; and a plurality of target shim members. Each of the plurality of target shim members has parameter characteristics and spatial characteristics, and at least one of the parameter characteristics and the spatial characteristics of at least two of the plurality of target shim members is different. The method includes: obtaining a first main magnetic field; and for each of a plurality of first magnetic field sub-regions, in response to a difference between a magnetic field strength of the first magnetic field sub-region and a magnetic field strength of another first magnetic field sub-region adjacent to the first magnetic field sub-region being greater than a first preset threshold, determining a plurality of target shim members in the radiation therapy system.

IPC Classes  ?

• A61N 5/10 - X-ray therapyGamma-ray therapyParticle-irradiation therapy
• G01R 33/3875 - Compensation of inhomogeneities using correction coil assemblies, e.g. active shimming
• G01R 33/56 - Image enhancement or correction, e.g. subtraction or averaging techniques

Abstract

A method and system for visual registration of an image are provided. The method may include obtaining multiple images; establishing a registration relationship model including multiple registration relationships each of which is of at least two of the multiple images; and displaying at least a portion of the multiple registration relationships on a user interface, wherein one of the multiple registration relationships presents at least one of a registration mode, a registration direction, or a reference image for registration of at least two of the multiple images.

IPC Classes  ?

• G06T 3/14 - Transformations for image registration, e.g. adjusting or mapping for alignment of images
• G06T 7/33 - Determination of transform parameters for the alignment of images, i.e. image registration using feature-based methods

Abstract

Systems and methods for determining a target multi-source model of a radiation source corresponding to an energy spectrum is provided. The systems may obtain an initial multi-source model of the radiation source, which includes an initial phase space file that includes information of a plurality of simulated particles of a plurality of energy levels. The systems may estimate, based on the initial phase space file, a plurality of component PDD curves corresponding to the plurality of energy levels. The systems may obtain a measured PDD curve corresponding to radiation of the energy spectrum. For each energy level, the systems may determine, based on the plurality of component PDD curves and the measured PDD curve, a weight for the each energy level. The systems may further determine the target multi-source model of the radiation source based at least in part on the initial multi-source model and the weights.

IPC Classes  ?

• A61N 5/10 - X-ray therapyGamma-ray therapyParticle-irradiation therapy

Abstract

The present disclosure relates to systems and methods for determining coincidence events. The systems and methods may obtain a cycle difference between a first clock cycle at which a first single event occurs and a second clock cycle at which a second single event occurs. The systems and methods may also obtain a first time-to-digital converter (TDC) value of the first single event and a second TDC value of the second single event. The systems and methods may then determine a difference between the first single event and the second single event based on the cycle difference, the first TDC value, and the second TDC value, and determine whether the first single event and the second single event have a coincidence relationship according to the difference.

IPC Classes  ?

• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
• A61B 6/03 - Computed tomography [CT]
• G04F 10/00 - Apparatus for measuring unknown time intervals by electric means

Abstract

The present disclosure relates to a cavity of a medical device. The cavity may include a bore and an accommodating cavity configured to provide an accommodating space for at least a portion of a couch in a radial direction of the bore. The accommodating cavity may be disposed on an inner wall of the bore and extend along an axial direction of the bore, and the accommodating cavity may be configured to form, with the bore, a connected space in which the at least a portion of the couch is allowed to move along an axial direction of the bore.

IPC Classes  ?

• A61N 5/10 - X-ray therapyGamma-ray therapyParticle-irradiation therapy

Abstract

The present disclosure relates to an accelerating apparatus for a radiation device. The accelerating apparatus may include a plurality of acceleration cavity units including a plurality of acceleration cavities. Each of the plurality of acceleration cavity units may be configured to accelerate a radiation beam passing through an acceleration cavity. And the accelerating apparatus may further include a plurality of coupling cavity units each of which may include a coupling cavity. Two adjacent acceleration cavities may be electromagnetically coupled via the coupling cavity. The plurality of acceleration cavity units may have a plurality of holes each of which may be configured to be in fluidic communication with the corresponding coupling cavity. And an edge region of each of at least a portion of the plurality of holes may include continuously varying curvatures.

IPC Classes  ?

• H05H 7/22 - Details of linear accelerators, e.g. drift tubes

Abstract

The present disclosure provides a magnetic resonance imaging (MRI) radio frequency (RF) coil assembly. The MRI RF coil assembly may include one or more coils and one or more control circuits. Each of the one or more coils may include a first end and a second end. Each of the one or more control circuits may electrically connect the first end and the second end of one of the one or more coil. Each of the one or more control circuits may be configured to adjust an operation of the coil that is electrically connected with the control circuit based on an input control signal. The one or more control circuits may be located at different regions.

IPC Classes  ?

• G01R 33/36 - Electrical details, e.g. matching or coupling of the coil to the receiver
• H03F 3/19 - High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only

Abstract

Embodiments of the present disclosure provide vascular imaging methods, systems, and storage mediums. The vascular imaging method may include obtaining imaging data of a target object, the imaging data being obtained through a spiral scanning manner, and generating a vascular angiographic image based on the imaging data.

IPC Classes  ?

• A61B 6/50 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body partsApparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific clinical applications
• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
• A61B 6/02 - Arrangements for diagnosis sequentially in different planesStereoscopic radiation diagnosis
• G06T 7/00 - Image analysis

Abstract

Provided are a method, a system, and a storage medium for obtaining an energy spectrum. The method comprises: obtaining a first depth dose curve corresponding to a first energy and a second depth dose curve corresponding to a second energy; obtaining, based on the first depth dose curve and the second depth dose curve, a first set of dose values and a second set of dose values along a depth direction, respectively; determining a relationship between the first depth dose curve and the second depth dose curve based on the first set of dose values and the second set of dose values; obtaining a first energy spectrum corresponding to the first depth dose curve; and determining a second energy spectrum corresponding to the second depth dose curve based on the first energy spectrum and the relationship between the first depth dose curve and the second depth dose curve.

IPC Classes  ?

• G01T 1/36 - Measuring spectral distribution of X-rays or of nuclear radiation
• G01N 23/06 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption
• G01T 1/161 - Applications in the field of nuclear medicine, e.g. in vivo counting

Abstract

The present disclosure may provide a collimator assembly. The collimator assembly may include a multi-leaf collimator (MLC) situated in a first plane and at least one block situated in a second plane different from the first plane. The MLC may include at least one first group of leaves and at least one second group of leaves opposing each other and being moveable along a first direction. One of the at least one block may be located at a position corresponding to an end of the at least one first group of leaves. Projection of one of the at least one block along a second direction may partially overlap projection of the at least one first group of leaves along the second direction.

IPC Classes  ?

• G21K 1/02 - Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
• A61N 5/10 - X-ray therapyGamma-ray therapyParticle-irradiation therapy

Abstract

The present disclosure relates to a system for PET imaging. The system may include a detector module and an electronics module. The detector module may include a scintillator array having N rows of scintillators arranged in a first direction and M columns of scintillators arranged in a second direction, a first set of photosensors coupled to the scintillator array and extending in the second direction, and a second set of photosensors coupled to the scintillator array and extending in the first direction. The electronics module may detect a first set of electrical signals generated by the first set of photosensors and a second set of electrical signals generated by the second set of photosensors, and identify a scintillator within the scintillator array that has interacted with an impinging radiation ray relating to an electrical signal of the first set of electrical signals or the second set of electrical signals.

IPC Classes  ?

• G01T 1/20 - Measuring radiation intensity with scintillation detectors
• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• A61B 6/42 - Arrangements for detecting radiation specially adapted for radiation diagnosis
• G01N 21/64 - FluorescencePhosphorescence
• G01T 1/164 - Scintigraphy
• G01T 1/29 - Measurement performed on radiation beams, e.g. position or section of the beamMeasurement of spatial distribution of radiation

Abstract

The present disclosure may provide a radiation system including a first rotation portion, a second rotation portion, a treatment head, one or more imaging sources, and at least one detector. At least a portion of the treatment head may be disposed in the first rotation portion. At least one of the one or more imaging sources may be disposed in the second rotation portion. The second rotation portion may be able to rotate independently from the first rotation portion.

IPC Classes  ?

• A61B 6/40 - Arrangements for generating radiation specially adapted for radiation diagnosis
• A61B 6/42 - Arrangements for detecting radiation specially adapted for radiation diagnosis
• A61N 5/10 - X-ray therapyGamma-ray therapyParticle-irradiation therapy

Abstract

The present disclosure is related to systems and methods for processing X-ray images. A method for processing an X-ray image may include obtaining an X-ray image; and determining a metal image based on the X-ray image by using a trained metal detection model. The metal image includes information of a metal object in the X-ray image.

IPC Classes  ?

• G06T 7/11 - Region-based segmentation
• G06T 7/00 - Image analysis

Abstract

A method of correcting a metal artifact is provided. The method includes obtaining a first image acquired by a first imaging device and a second image acquired by a second imaging device, the second imaging device including a computed tomography (CT) device; registering the first image and the second image; determining a template image based on the registered first image and second image; determining a metal artifact image based on the template image; and generating a corrected image by correcting, based on the metal artifact image, the second image.

IPC Classes  ?

• G06T 11/00 - 2D [Two Dimensional] image generation
• G06T 5/50 - Image enhancement or restoration using two or more images, e.g. averaging or subtraction

Abstract

The present disclosure provides a radiation treatment system. The radiation treatment system may include a radiation treatment device and a movable supporting device for supporting the target subject. The radiation treatment device may be configured to emit a radiation beam toward a target region of a target subject for radiation treatment. The movable supporting device may be configured to adjust a position of the target region relative to the radiation treatment device during the radiation treatment such that the target region is irradiated by the radiation beam from different directions.

IPC Classes  ?

• A61N 5/10 - X-ray therapyGamma-ray therapyParticle-irradiation therapy
• G01R 33/38 - Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field

Goods & Services

medical apparatus and instruments; diagnostic apparatus for medical purposes; radiological apparatus for medical purposes; magnetic resonance imaging [MRI] apparatus for medical purposes; ultrasound apparatus for medical purposes; tomographs for medical purposes; radiotherapy apparatus; X-ray apparatus for medical purposes; apparatus and installations for the production of X-rays, for medical purposes; beds specially made for medical purposes; operating tables; surgical apparatus and instruments for medical use; hospital beds; hospital gurneys; patient hoists.

Abstract

A method for MRI is provided. The method comprises obtaining k-space data collected during an MR scan of a target object, which is performed by applying an imaging sequence to the target object, the imaging sequence includes at least two signal acquisition modules of a same sequence type, different signal acquisition modules of the at least two signal acquisition modules have at least two design characteristics with different characteristic values, and the k-space data includes at least two k-space data sets each of which corresponds to one of the at least two signal acquisition modules. For each signal acquisition module, the method further comprises determining a target k-space data set and reconstructing an MR image of the target object corresponding to the signal acquisition module based on the target k-space data set.

IPC Classes  ?

• G01R 33/48 - NMR imaging systems
• G01R 33/561 - Image enhancement or correction, e.g. subtraction or averaging techniques by reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences

Abstract

Provided is a medical device rack, comprising a fixing part (100), a rotating part (200), and a bearing (300). The fixing part (100) comprises a first base body (110) and a second base body (120), which are detachably connected. The bearing (300) is mounted on the first base body (110). The rotating part (200) is detachably connected to a rotor (301) of the bearing (300). The second base body (120) is used for supporting the rotating part (200) separated from the bearing (300).

IPC Classes  ?

• A61B 6/03 - Computed tomography [CT]

Goods & Services

Computer programs, downloadable software; computer programs for searching remotely for content on computers and computer networks; computer software, recorded; downloadable image files; data processing apparatus; computer programs for connecting remotely to computers or computer networks; computers; computer programs, recorded; computer peripheral devices; couplers [data processing equipment].

Abstract

The present disclosure provides a system and method for image reconstruction. The method may include obtaining raw positron emission tomography (PET) data of a target object; determining a motion signal of the target object based on the raw PET data of the target object; extracting, based on the motion signal, target PET data from the raw PET data, the target PET data corresponding to a target motion signal, in the motion signal, in which motion change of the target object meets a predetermined change condition; and generating a reconstructed image of the target object by reconstructing the target PET data.

IPC Classes  ?

• G06T 11/00 - 2D [Two Dimensional] image generation

Abstract

The embodiments of the present disclosure provide a device for improving a dynamic range of a magnetic resonance RF emission signal. The device comprises an instruction processing module, configured to receive a magnetic resonance sequence instruction, and output a baseband signal and a frequency tuning word corresponding to a preset frequency; a coefficient generation module, configured to output a noise filter coefficient based on the frequency tuning word; and a pulse generation module, configured to output a target radio frequency signal based on the baseband signal, the frequency tuning word, and the noise filter coefficient.

IPC Classes  ?

• G01R 33/36 - Electrical details, e.g. matching or coupling of the coil to the receiver

Abstract

A detector module may be provided. The detector module may comprise one or more detector elements. Each of the one or more detector elements may include a detector crystal, a basal board, a supporting component, and a flexible board. The detector crystal may be mounted on a side of the basal board and configured to receive rays from a subject and generate a detection signal based on the rays. The supporting component may be configured to support the basal board. The supporting component may include a concave structure for accommodating at least a portion of the flexible board.

IPC Classes  ?

• G01T 1/202 - Measuring radiation intensity with scintillation detectors the detector being a crystal
• G01T 1/208 - Circuits specially adapted for scintillation detectors, e.g. for the photo-multiplier section

Abstract

A power supply system 110 and a method for controlling a medical device 120 may be provided. The system may include an electric power conversion module 111, an energy storage module 112. The energy storage module 112 may be connected to the electric power conversion module 111, and the electric power conversion module 111 may be connected to the medical device 120. The electric power conversion module 111 may be configured to convert a voltage of input electric power into at least one of a first target voltage or a second target voltage, the first target voltage may be required by one of one or more auxiliary loads 123 and one or more main loads 122 of the medical device 120, the second target voltage may be required by the energy storage module 112. The input electric power may be provided by at least one of the energy storage module 112 or an external mains power 140. The energy storage module 112 may be configured to store first electric power output from the electric power conversion module 111.

IPC Classes  ?

• H02J 7/32 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

A method may include obtaining a plurality of local input functions of an object, each of the plurality of local input functions being of a scanning area of the object. One of the plurality of local input functions may be obtained based on a scan for one of a plurality of table positions where a table for placing the object is located. Adjacent table positions in the plurality of table positions may correspond to an overlapping scanning area. The method may also include obtaining local input functions of at least one overlapping scanning area based on the plurality of local input functions; and determining a continuous input function of at least a portion of a target scanning area based on the local input functions of the at least one overlapping scanning area.

IPC Classes  ?

• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
• A61B 6/03 - Computed tomography [CT]

Abstract

The present disclosure provides a camera calibration method, system, storage medium for X-ray imaging. The method may include acquiring at least one image taken by a camera to be calibrated, wherein the at least one image may include a calibration target, and the calibration target may include at least one calibration point; selecting any calibration point of the at least one calibration point as a target calibration point; determining, based on the at least one image, image coordinates of the target calibration point; obtaining a first position and a second position of an X-ray imaging device; determining, based on the first position and the second position, spatial coordinates of the target calibration point; and performing calibration on the camera to be calibrated based on the image coordinates and the spatial coordinates.

IPC Classes  ?

• G06T 7/80 - Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration

Abstract

A ray source assembly, a ray control method, and a computer-readable storage medium. The ray source assembly comprises: an anode end (401), configured to receive an electron beam and generate rays on the basis of the received electron beam; a cathode end (402), configured to emit the electron beam to the anode end (401); and an electron beam control portion (403), disposed between the cathode end (402) and the anode end (401) and configured to adjust, by means of a control voltage, the number of electrons reaching the anode end (401) in the electron beam. The method can improve current control efficiency.

IPC Classes  ?

• H01J 35/02 - X-ray tubes Details
• H01J 35/14 - Arrangements for concentrating, focusing, or directing the cathode ray
• H01J 35/06 - Cathodes
• A61B 6/03 - Computed tomography [CT]
• A61B 6/40 - Arrangements for generating radiation specially adapted for radiation diagnosis

Abstract

Transmission cable assemblies and methods for suppressing common-mode currents on a transmission cable are provided. The transmission cable assembly may include a transmission cable and at least one trap fitted on the transmission cable. Each trap may include a first coil and a second coil in opposite helical directions and assembled to allow the transmission cable to insert through. The first coil and the second coil form a resonant circuit for reducing common-mode currents on the transmission cable. When there are multiple traps fitted on the transmission cable, they are spaced apart along the longitudinal axis of the transmission cable and an insulating component is placed between every two adjacent traps. The designs can make the trap filters smaller and lighter in weight while effectively reducing the impact on the local radiofrequency (B1) field.

IPC Classes  ?

• G01R 33/36 - Electrical details, e.g. matching or coupling of the coil to the receiver

Abstract

An imaging phantom assembly includes a phantom body and one or more coils. At least one part of at least one of the one or more coils is arranged in the phantom body.

IPC Classes  ?

• G01R 33/58 - Calibration of imaging systems, e.g. using test probes
• G01R 33/34 - Constructional details, e.g. resonators

Abstract

Methods and devices for magnetic resonance imaging are provided in embodiments of the present disclosure. The method may include determining, based on undersampling K-space data of a plurality of phases of an object, a first coil sensitivity map, the undersampling K-space data being obtained through Cartesian sampling, determining, based on the first coil sensitivity map and the undersampling K-space data, a plurality of intermediate reconstruction images, each of the plurality of the intermediate reconstruction images corresponding to one of the plurality of phases, and determining, based on the plurality of intermediate reconstruction images, an optimized dynamic image of the object through optimization processing.

IPC Classes  ?

• G01R 33/56 - Image enhancement or correction, e.g. subtraction or averaging techniques
• A61B 5/055 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fieldsMeasuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
• G01R 33/563 - Image enhancement or correction, e.g. subtraction or averaging techniques of moving material, e.g. flow-contrast angiography
• G06T 11/00 - 2D [Two Dimensional] image generation

Abstract

A slip ring assembly includes a base body, at least one first conductor, and at least one second conductor. The base body is configured to have an annular shape and adapted to be made of an insulating material, and the base body includes a first side and a second side opposite to the first side along an axial direction of the base body. The first conductor is configured to have an annular shape and adapted to be fixed on the first side or the second side. The second conductor is configured to have an annular shape and adapted to be fixed on the first side or the second side. The first conductor and the second conductor are electrically insulated, and a projection of the first conductor and a projection of the second conductor along the axial direction of the base body at least partially overlap.

IPC Classes  ?

• H01R 39/10 - Slip-rings other than with external cylindrical contact surface, e.g. flat slip-rings

Abstract

The present disclosure relates to a positron emission computed tomography (PET) imaging method, a device, a storage medium, and a product. The method includes: determining a target coincidence event of a to-be-detected object; and performing image reconstruction based on the PET raw data corresponding to the target coincidence event, to obtain a reconstructed image of the to-be-detected object.

IPC Classes  ?

• G06T 11/00 - 2D [Two Dimensional] image generation
• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
• A61B 6/03 - Computed tomography [CT]
• G06T 7/00 - Image analysis

Abstract

A method for reconstructing a dose distribution for a region of interest includes determining a predicted source intensity distribution of a radiation source; determining a calculated transmission dose distribution based on the predicted source intensity distribution; determining a target source intensity distribution based on the calculated transmission dose distribution and the predicted source intensity distribution; and reconstructing the dose distribution of the region of interest based on the target source intensity distribution.

IPC Classes  ?

• A61N 5/10 - X-ray therapyGamma-ray therapyParticle-irradiation therapy
• G16H 20/40 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture

Abstract

The disclosure relates to a system and method for image reconstruction. The method may include the steps of: obtaining raw data corresponding to radiation rays within a volume, determining a radiation ray passing a plurality of voxels, grouping the voxels into a plurality of subsets such that at least some subset of voxels are sequentially loaded into a memory, and performing a calculation relating to the sequentially loaded voxels. The radiation ray may be determined based on the raw data. The calculation may be performed by a plurality of processing threads in a parallel hardware architecture. A processing thread may correspond to a subset of voxels.

IPC Classes  ?

• G06T 11/00 - 2D [Two Dimensional] image generation
• G06T 1/20 - Processor architecturesProcessor configuration, e.g. pipelining
• G06T 5/00 - Image enhancement or restoration
• G06T 7/10 - SegmentationEdge detection

Abstract

Systems and methods for adjusting a beam-limiting device, the beam-limiting device including a plurality of movable components for shaping a radiation beam. The methods may include for each of the plurality movable components, determining an initial location of the movable component; determining a target location of the movable component; and determining, based on the initial location and the target location, a moving route of the movable component. The methods may also include causing the plurality of movable components to move along their respective moving routes. During the movement of the plurality of movable components along their respective moving routes, the shape of an irradiation region of the radiation beam passing through the beam-limiting device may remain unchanged or substantially unchanged.

IPC Classes  ?

• A61N 5/10 - X-ray therapyGamma-ray therapyParticle-irradiation therapy