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; 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

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 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 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

Abstract

An imaging device is provided. The imaging device includes: one or more imaging sources; and a plurality of detectors combined by joining, the plurality of detectors being configured to receive one or more imaging beams emitted by the one or more imaging sources.

IPC Classes  ?

• H01J 37/244 - DetectorsAssociated components or circuits therefor
• H01J 37/28 - Electron or ion microscopesElectron- or ion-diffraction tubes with scanning beams

Goods & Services

(1) Beds specially made for medical purposes; computed tomography [CT] scanners; magnetic resonance imaging [MRI] apparatus for medical purposes; medical image processors; radiological equipment for medical purposes; radiology screens for medical purposes; radiotherapy apparatus; tomographs for medical purposes; x-ray apparatus for medical purposes; X-ray diagnostic apparatus

Goods & Services

(1) Beds specially made for medical purposes; computed tomography [CT] scanners; magnetic resonance imaging [MRI] apparatus for medical purposes; medical image processors; radiological equipment for medical purposes; radiology screens for medical purposes; radiotherapy apparatus; tomographs for medical purposes; x-ray apparatus for medical purposes; X-ray diagnostic apparatus

Goods & Services

(1) Beds specially made for medical purposes; computed tomography [CT] scanners; magnetic resonance imaging [MRI] apparatus for medical purposes; medical image processors; radiological equipment for medical purposes; radiology screens for medical purposes; radiotherapy apparatus; tomographs for medical purposes; x-ray apparatus for medical purposes; X-ray diagnostic apparatus

Abstract

A slip ring assembly includes: at least one first conductor group, and at least one second conductor group. Each first conductor group includes a first conductor and a second conductor, and the first conductor and the second conductor are configured as annular shapes, respectively. Each second conductor group includes a third conductor and a fourth conductor, the third conductor and the fourth conductor are configured as annular shapes, respectively. The first conductor, the second conductor, the third conductor and the fourth conductor are arranged to be apart from each other. A first current having a first phase and a first amplitude is configured to flow through the first conductor, a second current having a second phase and a second amplitude is configured to flow through the second conductor, a third current having a third phase and a third amplitude is configured to flow through the third conductor.

IPC Classes  ?

• H01R 39/60 - Devices for interrupted current collection, e.g. commutating device, distributor, interrupter
• 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 33/28 - Details of apparatus provided for in groups

Abstract

A suspended travelling device and a medical imaging system. The suspended travelling device includes at least one rail, at least one guide belt, and a movable mechanism. The at least one guide belt is arranged on each rail along an extension direction of each rail. The movable mechanism has at least one first travel roller. Each first travel roller is rollable on and abuts against a surface of a corresponding guide belt, and a difference between material hardness of an outer peripheral surface of each first travel roller and material hardness of the corresponding guide belt is less than or equal to a preset material hardness threshold.

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

Abstract

The embodiments of the present specification provide an image contouring method and system, and a computer-readable storage medium. The method includes: obtaining a three-dimensional image, the three-dimensional image including a plurality of slice images arranged in sequence; obtaining reference contouring information in a first slice image among the plurality of slice images; and determining, based on the reference contouring information, a target contouring in a second slice image among the plurality of slice images, the second slice image being adjacent to the first slice image.

IPC Classes  ?

• G06V 10/46 - Descriptors for shape, contour or point-related descriptors, e.g. scale invariant feature transform [SIFT] or bags of words [BoW]Salient regional features
• G06T 7/30 - Determination of transform parameters for the alignment of images, i.e. image registration
• G06T 11/60 - Editing figures and textCombining figures or text
• G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]

Abstract

A method and system for scanning are provided. The method may include obtaining one or more images of a target subject acquired by an imaging device; determining a three-dimensional (3D) geometric model of the target subject based on the one or more images; obtaining an anatomical structure model of at least a portion of the target subject; obtaining a combination model by combining the 3D geometric model of the target subject and the anatomical structure model of at least a portion of the target subject; and determining one or more scanning parameters of the target subject based on the combination model.

IPC Classes  ?

• 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
• A61B 6/46 - Arrangements for interfacing with the operator or the patient
• 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

Abstract

The present disclosure provides a gantry for an X-ray system. The gantry may include a base section, a lifting section, and a swing section. The base section may be configured to move. A first end of the lifting section may be connected to the base section. A first end of the swing section may be rotatably connected to a second end of the lifting section. A radiation assembly may be disposed on a second end of the swing section.

IPC Classes  ?

• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
• B60B 33/00 - Castors in general
• F16M 11/10 - Means for attachment of apparatusMeans allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
• F16M 11/42 - Stands or trestles as supports for apparatus or articles placed thereon with arrangement for propelling the support

Abstract

A modeling method includes: determining a source particle distribution and a leaked particle distribution, determining a first particle ratio between target scattered particles and source particles according to the source particle distribution and the leaked particle distribution, and then determining particle motion parameters of the target scattered particles by sampling according to the first particle ratio and at least one of the leaked particle distribution, an angular distribution of the target scattered particles, and an energy distribution of the target scattered particles, so as to determine a distribution model of the target scattered particles based on the particle motion parameters of the target scattered particles.

IPC Classes  ?

• G06F 30/25 - Design optimisation, verification or simulation using particle-based methods
• A61N 5/10 - X-ray therapyGamma-ray therapyParticle-irradiation therapy
• 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

A heat dissipation system and a medical system are provided. The heat dissipation system includes a circulation pipeline and a cooling device. The circulation pipeline is configured for conveying a cooling medium to a medical system. The medical system includes at least two electric units, and the at least two electric units have different rated cooling temperatures. The cooling device is in communication with the circulation pipeline and is configured for adjusting a temperature of the cooling medium, so as to dissipate heat of the at least two electric units.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Goods & Services

radiological apparatus for medical purposes; radiotherapy apparatus; X-ray apparatus for medical use; X-ray diagnostic apparatus; radioisotope therapy apparatus and instruments; Medical products, namely, therapeutic mattresses, beds, seats and cushions; tomographs for medical purposes; Beds specially made for medical purposes; Medical imaging apparatus; Medical apparatus and instruments 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, medical and electromedical magnetic resonance imaging machines and their structural components, computed tomography machines and their structural components, digital medical x-ray imaging apparatus and their structural components, digital radiology 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 for diagnostic use, namely, digital radiology equipment including a bed as a component; medical apparatus and instruments for therapy use, namely, digital radiology equipment including a bed as a component

Abstract

The present disclosure provides methods and systems for image reconstruction. The methods may include: obtaining background coincidence event data and target coincidence event data, the background coincidence event data being related to a first plurality of background coincidence events, the target coincidence event data being related to a target object; obtaining a target normalization correction factor; correcting the target coincidence event data based on the target normalization correction factor; and generating a target image by performing image reconstruction based on the background coincidence event data and the corrected target coincidence event data.

IPC Classes  ?

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

Abstract

A method for generating a medical data processing network. The method is performed by a medical imaging system, and the method includes: in response to receiving a training instruction, obtaining first medical data, the training instruction being triggered by a user on an application interface of a processing device of the medical imaging system; obtaining a second network by training a first network based on the first medical data, the training including an unsupervised training; generating a test result by inputting second medical data into the second network, the second medical data including a test sample set; determining an evaluation result of a performance of the second network based on the test result; and in response to the evaluation result indicating that the performance of the second network satisfies a requirement, storing a parameter of the second network.

IPC Classes  ?

• G16H 30/40 - ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
• G06N 3/045 - Combinations of networks
• G06N 3/088 - Non-supervised learning, e.g. competitive learning

Abstract

The present disclosure may provide imaging methods, systems and storage media. The imaging methods may include: obtaining first imaging data acquired by an imaging device, wherein the first imaging data includes data corresponding to a plurality of cardiac cycles; and performing image reconstruction on data corresponding to the plurality of cardiac cycles in the first imaging data to acquire one or more cardiac cines. Each cardiac cine of the one or more cardiac cines may include cardiac images of a plurality of phases in at least one cardiac cycle.

IPC Classes  ?

• G01R 33/567 - Image enhancement or correction, e.g. subtraction or averaging techniques gated by physiological signals
• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• 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

Abstract

Disclosed is a method for processing scanning data. The method comprises: acquiring scanning data (S210); and performing joint processing on the scanning data by using a preset deep learning network, so as to obtain a processing result of the scanning data (S220), wherein the scanning data comprises scanning data of a plurality of different energy spectrums, and the deep learning network is configured to perform feature extraction on the scanning data of each energy spectrum among the scanning data of the plurality of different energy spectrums, and perform feature extraction on the scanning data of all energy spectrums among the scanning data of the plurality of different energy spectrums. Further disclosed are an apparatus for processing scanning data, and a computer device and a storage medium.

IPC Classes  ?

• G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]

Abstract

A placement mechanism and a flat panel box are provided. The placement mechanism includes a body with a mounting surface configured to place a flat panel and a limiting assembly on the mounting surface. The limiting assembly includes at least two first limiting blocks at a first end of the body, a second limiting block at a second end of the body, and a locking portion. The at least two first limiting blocks include a flange extending over the mounting surface along a height direction of the body. The at least two first limiting blocks and the second limiting block are configured to limit a length direction and a width direction of the flat panel. The locking portion is located at the second end and has a locking member with a locking position and an unlocking position configured to lock and unlock a height direction of the flat panel.

IPC Classes  ?

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

Abstract

Systems and methods for four-dimensional CT scan are provided. The methods may include determining a first region of a subject and a second region. A movement of the subject may occur within the second region. The methods may further include generating a first image set by performing, based on a first operation parameter corresponding to a first scan, the first scan on the first region of the subject, and generating a second image set by performing, based on a second operation parameter corresponding to a second scan, the second scan on a second region of the subject. The methods may further include obtaining movement information corresponding to the movement of the subject and determining a final image set based on the first image set, the movement information, and the second image set.

IPC Classes  ?

• A61B 6/46 - Arrangements for interfacing with the operator or the patient
• 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 11/00 - 2D [Two Dimensional] image generation

Abstract

The present disclosure provides a system and method for image reconstruction and processing. The method may include obtaining image data of an object acquired by an imaging device. The method may include determining one or more regions of interest (ROIs) of the object. The method may also include determining, based on each ROI of the one or more ROIs, a target portion of the image data corresponding to the ROI among the image data. The method may further include reconstructing, based on the target portion of the image data, one or more images of the ROI.

IPC Classes  ?

• G06T 7/11 - Region-based segmentation
• G06N 20/00 - Machine learning
• G06T 7/00 - Image analysis
• G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]
• G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersectionsConnectivity analysis, e.g. of connected components
• G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
• G06V 10/774 - Generating sets of training patternsBootstrap methods, e.g. bagging or boosting

Abstract

Embodiments of the present disclosure provide a system for determining a protocol parameter of cardiac magnetic resonance imaging. The system includes at least one storage device storing a set of instructions and at least one processor configured to communicate with the at least one storage device. When executing the set of instructions, the at least one processor is configured to direct the system to perform operations including in response to detecting that a user operation satisfies a first condition, obtaining an inversion time scout (TI-Scout) sequence for cardiac scanning; obtaining a plurality of first scan images by performing a first scan on a target object based on the TI-Scout sequence protocol; and generating a first target parameter for a phase sensitive inversion recovery (PSIR) protocol using a target parameter determination model based on the plurality of first scan images.

IPC Classes  ?

• G06V 10/98 - Detection or correction of errors, e.g. by rescanning the pattern or by human interventionEvaluation of the quality of the acquired patterns
• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• 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 33/56 - Image enhancement or correction, e.g. subtraction or averaging techniques
• G06V 10/77 - Processing image or video features in feature spacesArrangements for image or video recognition or understanding using pattern recognition or machine learning using data integration or data reduction, e.g. principal component analysis [PCA] or independent component analysis [ICA] or self-organising maps [SOM]Blind source separation
• G06V 10/94 - Hardware or software architectures specially adapted for image or video understanding

Abstract

A system and method for adapting treatment plan are provided. The method may include: obtaining a planning image of a region of interest relating to a first treatment fraction of a first treatment plan; obtaining a first image of the region of interest relating to a first scan of the region of interest with a first dose level; comparing the planning image with the first image to generate a first comparison result; determining whether the first comparison result satisfies a first replanning condition; causing, in response to a determination that the first comparison result satisfies the first replanning condition, one or more scanners to perform a second scan with a second dose level to provide a second image; and generating a second treatment plan according to the second image, wherein the second dose level is higher than the first dose level.

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

A system and method for dose modulation of an X-ray scanning. The method may include obtaining an initial scanning dose rule for scanning a target subject; determining, based on the initial scanning dose rule, a power supply control rule of a grid in an X-ray tube of the X-ray scanning; and controlling a high-voltage generator to supply power to the grid according to the power supply control rule to control an output state of tube current of the X-ray tube (440).

IPC Classes  ?

• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
• H05G 1/32 - Supply voltage of the X-ray apparatus or tube
• H05G 1/48 - Compensating the voltage drop occurring at the instant of switching-on of the apparatus

Goods & Services

Computer operating programs, recorded; computer software, recorded; downloadable virtual reality software for medical teaching; software as a medical device [SaMD], downloadable; data processing apparatus; computer software applications, downloadable; computer chatbot software for simulating conversations; computer programs, downloadable; computer software for processing digital images; computer software platforms, recorded or downloadable. Research and development of new products for others; conducting technical project studies; medical research laboratory services; clinical trials; electronic data storage; software as a service [SaaS]; creation and development of computer programs for data processing; development of computer platforms; platform as a service [PaaS]; maintenance of computer software.

Abstract

The embodiments of the present disclosure provide a quality assurance method and system. The quality assurance method comprises: obtaining status information of a medical device; obtaining a target plan of a target subject; determining a prediction result based on the status information of the medical device and the target plan; and determining whether a quality assurance test is passed based on the prediction result.

IPC Classes  ?

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

Goods & Services

Medical apparatus and instruments; diagnostic apparatus for medical purposes; x-ray apparatus for medical purposes; radiological apparatus for medical purposes; tomographs for medical purposes; whole body CT scanner; radiotherapy apparatus; medical devices for measuring radiation dose in radiotherapy; radioisotope therapy apparatus; beds specially made for medical purposes.

Abstract

The embodiments of the present disclosure provide an imaging method, an imaging system, a dual-source scanning system, and a method for controlling the dual-source scanning system. The imaging method includes: obtaining first detection data and second detection data acquired by scanning an object using a first detector and a second detector of an imaging device respectively, and obtaining a first reconstructed image by performing image reconstruction based on the first detection data and the second detection data. The first reconstructed image can cover an area not detected by the first detector, thus expanding a reconstruction range. The dual-source scanning system includes afirst scanning system and a I second scanning system, wherein at least one of the first detector or the second detector has an asymmetric structure relative to a central channel thereof. A first scanning FOV of the first scanning system and a second scanning FOV of the second scanning system are at least partially overlapped.

IPC Classes  ?

• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
• A61B 6/40 - Arrangements for generating radiation specially adapted for radiation diagnosis
• G06T 11/00 - 2D [Two Dimensional] image generation

Abstract

A bearing device and a mobile digital radiography device are provided. The Bearing device may include a mount, a support unit, a vibration absorption unit, and a connecting member. The mount may be connected to the support unit. The support unit may be connected to the connecting member through the vibration absorption unit. The vibration absorption unit may include a first elastic member and a second elastic member. The first elastic member and the second elastic member may be disposed in different directions.

IPC Classes  ?

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

Goods & Services

Downloadable software for radiotherapy; downloadable computer programs for searching remotely for content on computers and computer networks; recorded computer operating software; recorded computer software for radiotherapy; downloadable image files containing radiotherapy; data processing apparatus; downloadable computer programs for connecting remotely to computers or computer networks; computers; recorded computer operating programs; recorded computer programs for radiotherapy; computer peripheral devices; data processing equipment, namely, couplers

Goods & Services

Radiation therapy devices; Radiation therapy machines and related recorded software sold as a unit; Medical apparatus and instruments for diagnostic radiopharmaceutical use; 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; X-ray diagnostic apparatus; Tomographs for medical purposes; X-ray tubes for medical purposes; Radioisotope therapy apparatus and instruments; X-ray apparatus for medical purposes; Radiological apparatus for medical purposes; Radiotherapy apparatus; Beds specially made for medical purposes

Abstract

A method and a system for PET imaging may be provided. PET data of a subject collected by a PET scan of the subject and a physiological signal relating to a physiological motion of the subject during the PET scan may be obtained. Gated PET images corresponding to physiological phases of the subject may be generated based on the PET data and the physiological signal. Further, for each physiological phase, a first attenuation map of the subject corresponding to the physiological phase may be generated based on the gated PET image corresponding to the physiological phase, and an attenuation corrected gated PET image corresponding to the physiological phase may be generated based on the first attenuation map and a portion of the PET data corresponding to the physiological phase. A target PET image corresponding to a reference physiological phase may be generated based on the attenuation corrected gated PET images.

IPC Classes  ?

• A61B 6/03 - Computed tomography [CT]
• 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 an image processing method, a system, an apparatus, and a storage medium thereof. The image processing method may include obtaining a phantom image and a normalization standard and performing a first processing on the phantom image. The method may also include generate a recovery coefficient of the processed phantom image generated by the first processing; determining whether the recovery coefficient satisfies the normalization standard and in response to determining that the recovery coefficient satisfies the normalization standard, obtaining a target processing parameter. The target processing parameter is a processing parameter of the first processing when the recovery coefficient satisfies the normalization standard. The method may further include determining an image processing result by processing an image to be processed based on the target processing parameter.

IPC Classes  ?

• A61B 6/58 - Testing, adjusting or calibrating thereof
• G06T 7/00 - Image analysis

Abstract

A method and a system for determining a blood flow parameter of a reticular vessel are provided. The method may be implemented on a device including at least one processing device and at least one storage device. The method may include: obtaining vessel data of an object; generating a reticular vessel model by performing, based on the vessel data, vessel segmentation; generating, by performing model partitioning based on the reticular vessel model, a plurality of vessel sub-models; and determine the blood flow parameter of the reticular vessel model by performing, based on the plurality of vessel sub-models, coupling processing.

IPC Classes  ?

• G06T 7/00 - Image analysis

Abstract

A docking structure (330) may be installed on a medical bed (300) and configured to dock with a connection structure (220) of an imaging device (200) to achieve docking between the medical bed (300) and the imaging device (200). A docking method may include: step 710, driving the medical bed (300) to move towards the imaging device (200) to a first critical position; step 720, driving the medical bed (300) to continue moving to a second critical position; step 730, driving the medical bed (300) to continue moving to a third critical position; and step 740, initiating an electric driving assembly (333) to drive a mounting seat (332) to move relative to the medical bed (300), so that the medical bed (300) docks with the imaging device (200). A docking detachment structure (400) is fit with the docking structure (330) and may be provided on the connection structure (220). A floating structure (500) may be used for a bed-side connector (331) of the docking structure (330) and/or for an imaging-side connector (222) of the connection structure (220) of the imaging device (200).

IPC Classes  ?

• A61G 13/10 - Parts, details or accessories
• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
• 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

Radiotherapy apparatus; Radiological apparatus for medical purposes; Radiation therapy machines and related recorded software sold as a unit; Medical apparatus and instruments for use in radiotherapy procedures; Medical imaging apparatus; Medical imaging apparatus for use in the field of radiology; Beds specially made for medical purposes; Medical diagnostic apparatus for testing tumors, nerves and heart diseases; X-ray diagnostic apparatus; Medical apparatus and instruments for diagnostic radiopharmaceutical use

Abstract

The present disclosure relates to a medical image registration method, a computer apparatus and a storage medium. The method includes: obtaining a similarity weight distribution containing a similarity weight of each element; adjusting, based on the similarity weight of each element, a contribution of a corresponding element in a similarity term of a loss function to the loss function; the similarity weight of the element having a positive correlation relationship with a registration requirement accuracy associated with a region in which the element is located; obtaining, based on an optimized loss function obtained by the adjustment, a target deformation field.

IPC Classes  ?

• G06T 7/33 - Determination of transform parameters for the alignment of images, i.e. image registration using feature-based methods
• G06T 7/11 - Region-based segmentation
• G06T 7/187 - SegmentationEdge detection involving region growingSegmentationEdge detection involving region mergingSegmentationEdge detection involving connected component labelling
• G06T 7/32 - Determination of transform parameters for the alignment of images, i.e. image registration using correlation-based methods
• G06T 7/35 - Determination of transform parameters for the alignment of images, i.e. image registration using statistical methods

Abstract

The present disclosure provides a PET system and a correction method and system thereof, a device, and a medium. The correction method includes: obtaining an initial NC factor of an initial LOR corresponding to a pair of coincident detector crystals in the PET system; determining, based on the DOI information, a target LOR corresponding to the pair of coincident detector crystals; obtaining a DOI compensating coefficient for the NC factor of the target LOR relative to the initial LOR; and obtaining, based on the initial NC factor and the DOI compensating coefficient for the NC factor, a target NC factor corresponding to the target LOR to correct the PET system.

IPC Classes  ?

• A61B 6/03 - Computed tomography [CT]
• A61B 6/42 - Arrangements for detecting radiation specially adapted for radiation diagnosis
• G06T 11/00 - 2D [Two Dimensional] image generation

Abstract

Embodiments of the present disclosure provide methods, systems, devices, and storage mediums for determining a target motion state and obtaining a target image. The method may include: obtaining first scanning data of a subject during a first scanning stage, the first scanning data corresponding to a first field of view (FOV); obtaining second scanning data of the subject during the first scanning stage, the second scanning data corresponding to a second FOV, the second FOV being smaller than the first FOV; determining, based on the first scanning data and the second scanning data, a target correspondence between the first scanning data and the second scanning data of the subject in at least one motion state during the first scanning stage; and determining, based on the target correspondence, a target motion state of the subject during a second scanning stage.

IPC Classes  ?

• G01R 33/56 - Image enhancement or correction, e.g. subtraction or averaging techniques

Abstract

A detector includes a plurality of crystal arrays and a plurality of photoelectric sensor arrays stacked in the third direction. Each of the crystal arrays includes a plurality of crystal array units arranged in an array in a plane defined by a first direction and a second direction, and each of the crystal array units includes at least one crystal. Each of the crystal arrays has a coupling surface perpendicular to the third direction. The first direction, the second direction, and the third direction are perpendicular to one another. Each of the photoelectric sensor arrays includes a plurality of photoelectric sensor array units arranged in an array in the plane defined by the first direction and the second direction, and each of the photoelectric sensor array units includes at least one photoelectric sensor. The photoelectric sensor array is coupled to the crystal array through the coupling surface.

IPC Classes  ?

• G01T 1/202 - Measuring radiation intensity with scintillation detectors the detector being a crystal

Abstract

Systems and methods for image processing are provided. The systems obtain a plurality of images of a target subject that are captured consecutively over time. The target subject is injected with tracer and including a target body portion. For each of the plurality of images, the systems generate a sub-image of the target body portion by segmenting the image and transform the sub-image to generate a transformed sub-image in a standard space based on a template image of the target body portion. The standard space includes a plurality of template images of a plurality of body portions. The systems further determine an uptake variation curve indicating a change of tracer uptake in the target body portion over the time based on the transformed sub-images corresponding to the plurality of images.

IPC Classes  ?

• G06T 7/00 - Image analysis
• G06T 7/11 - Region-based segmentation
• G06T 7/33 - Determination of transform parameters for the alignment of images, i.e. image registration using feature-based methods
• G16H 50/30 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for calculating health indicesICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for individual health risk assessment

Abstract

A system and a method for PET imaging may be provided. Scan data of an object collected by a PET scan over a scan time period may be obtained. A plurality of target sets of scan data may be determined from the scan data based on a preset condition. Each of the plurality of target sets of scan data may correspond to a target sub-time period in the scan time period. One or more intermediate images corresponding to one or more sub-time periods different from the plurality of target sub-time periods in the scan time period may be generated based on the plurality of target sets of scan data. A target image sequence of the object may be generated based on the plurality of target sets of scan data and the one or more intermediate images.

IPC Classes  ?

• G06T 11/00 - 2D [Two Dimensional] image generation
• G16H 30/00 - ICT specially adapted for the handling or processing of medical images

Abstract

A method and a system(100) for PET imaging may be provided. PET data(601) of a subject collected by a PET scan of the subject and a physiological signal(602) relating to a physiological motion of the subject during the PET scan may be obtained. Gated PET images(603) corresponding to physiological phases of the subject may be generated based on the PET data(601) and the physiological signal(602). Further, for each physiological phase, a first attenuation map(604) of the subject corresponding to the physiological phase may be generated based on the gated PET image(603) corresponding to the physiological phase, and an attenuation corrected gated PET image(605) corresponding to the physiological phase may be generated based on the first attenuation map(604) and a portion of the PET data(601) corresponding to the physiological phase. A target PET image(613) corresponding to a reference physiological phase(608) may be generated based on the attenuation corrected gated PET images(605).

IPC Classes  ?

• A61B 6/03 - Computed tomography [CT]

Abstract

A mammography system and a method for imaging at least part of a breast with the mammography system are disclosed. The method includes: obtaining pre-exposure images respectively corresponding to a plurality of phantoms by performing pre-exposure for each of the plurality of phantoms with a respective predetermined dosage, each phantom having its respective compression thickness and component composition; determining a relationship among a target grayscale, the compression thickness and the component composition by performing de-scattering processing on each pre-exposure image based on the compression thickness and the component composition of the phantom corresponding to the pre-exposure image; determining a target dosage for a target breast based on a compression thickness and a component composition of the target breast, and the relationship; and acquiring a main exposure image by performing exposure for the target breast based on the target dosage.

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 6/58 - Testing, adjusting or calibrating thereof

Abstract

Systems and methods for interference signal collection and processing are provided. The systems may obtain initial signals and first interference signals collected in at least one first time window during an MR scan of a target subject. The nuclei in the target subject may be in an excited state in the at least one first time window. The initial signals may be collected by a receiving coil of an MRI device, and the first interference signals may be collected by an interference signal acquisition device. The systems may also determine second interference signals collected by the receiving coil in the at least one first time window based on the first interference signals. The systems may further determine imaging signals collected by the receiving coil in the at least one first time window by correcting the initial signals based on the second interference signals.

IPC Classes  ?

• G01R 33/56 - Image enhancement or correction, e.g. subtraction or averaging techniques
• G01R 33/565 - Correction of image distortions, e.g. due to magnetic field inhomogeneities
• G06T 11/00 - 2D [Two Dimensional] image generation

Abstract

The present disclosure provides methods and systems for lesion region identification. The methods may include identifying a target region corresponding to at least one reference organ from a first medical image of a target subject. The methods may include determining, based on the target region, a reference threshold used for lesion detection. The methods may further include identifying, based on the reference threshold, a lesion region from the first medical image.

IPC Classes  ?

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

Abstract

A method and system for myocardial information determination may be provided. Medical images of the heart of a target subject may be obtained. The medical images may be collected by performing a medical scan on the target subject when the target subject is injected with a first tracer. A target model that has been trained using training samples may be obtained. Each training sample includes label information collected using a second tracer. Blood flow information and/or cardiac function information of the heart of the target subject may be determined based on the medical images and the target model.

IPC Classes  ?

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

Abstract

Systems and methods for image reconstruction. The method may include: obtaining original raw data acquired by a medical device, obtaining an initial image, and generating a target image based on the original raw data and the initial image according to an image reconstruction algorithm.

IPC Classes  ?

• G06T 7/00 - Image analysis

Abstract

Embodiments of the present disclosure provide a slip ring device for a medical scanning device. The slip ring device includes a slip ring transmission module and at least two power line communication modules. The slip ring transmission module includes at least one transmission circuit. The at least two power line communication modules are configured to adjust a frequency of data signals to enable the data signals to be transmitted in the transmission circuit. Each of the first transmission end and the second transmission end is provided with at least one of the at least two power line communication modules.

IPC Classes  ?

• H04B 3/54 - Systems for transmission via power distribution lines
• H01R 39/08 - Slip-rings
• A61B 6/03 - Computed tomography [CT]
• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment

Abstract

A mobile medical imaging apparatus and a moving trolley thereof are disclosed. The mobile medical imaging apparatus has an imaging device mounted on the moving trolley. The moving trolley includes a trolley body, a force detection unit and a control unit. The trolley body includes a power-assisted travelling mechanism. The force detection unit is arranged on the trolley body and configured to detect force information on a driving force applied to the trolley body by an operator. The force information on the driving force includes at least a direction of the driving force. The control unit is connected to the force detection unit and configured to acquire the force information, and control, based on the force information, the power-assisted travelling mechanism to move relative to ground.

IPC Classes  ?

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

Abstract

A method and a device for determining a radiation delivery plan, a computer equipment, a storage medium and a computer program product. The method includes: obtaining an image of a target object, and determining a predicted dose distribution of the target object according to the image of the target object; and determining an objective dose distribution for the radiation delivery plan based on the predicted dose distribution and a plan-quality control strategy.

IPC Classes  ?

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

Abstract

Embodiments of the present disclosure provide a method and a system for determining an image control point. The method may include obtaining a first image; determining a plurality of initial control points in the first image; dividing the first image into at least two sub-regions; and determining, based on one or more features of the plurality of initial control points, one or more target control points in each of the at least two sub-regions.

IPC Classes  ?

• G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]
• G06T 7/13 - Edge detection
• G06T 7/136 - SegmentationEdge detection involving thresholding
• G06T 7/33 - Determination of transform parameters for the alignment of images, i.e. image registration using feature-based methods
• G06V 10/26 - Segmentation of patterns in the image fieldCutting or merging of image elements to establish the pattern region, e.g. clustering-based techniquesDetection of occlusion
• G06V 10/28 - Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns

Abstract

An intelligent control method and system. The intelligent control method comprises: acquiring a first speech signal (1502), wherein the first speech signal (1502) is generated by a first speech device (940) by means of performing detection on first user speech; performing speech recognition on the first speech signal (1502), so as to obtain a speech recognition result (1504); on the basis of the speech recognition result (1504), determining whether the first user speech includes a control instruction (1506) for a target device; and in response to it being determined that the first user speech includes the control instruction (1506) for the target device, controlling the target device on the basis of the control instruction (1506).

IPC Classes  ?

• G10L 15/22 - Procedures used during a speech recognition process, e.g. man-machine dialog

Abstract

Medical image processing methods and systems are provided. The methond is implemented on a PET-CT system including a computed tomography (CT) imaging device and a positron emission computed tomography (PET) imaging device. The method may comprise obtaining PET data of a target object within a field of view (FOV) of the PET imaging device. The method may comprise obtaining CT data of the target object within a FOV of the CT imaging device. The method may comprise generating an attenuation image based on a target registration parameter and the CT data, wherein the target registration parameter characterizes a mapping relationship registering the CT coordinate system and the PET coordinate system, and the target registration parameter is obtained based on background coincidence event data from the PET imaging device. The method may further comprise reconstructing a target PET image based on the PET data and the attenuation image.

IPC Classes  ?

• A61B 6/03 - Computed tomography [CT]
• G06T 11/00 - 2D [Two Dimensional] image generation
• G06T 7/00 - Image analysis

Abstract

A method, a system, and a device for determining a target detection region of an ionization chamber, and storage medium. The method includes obtaining an image comprising a target region of a to-be-scanned object acquired by an image collector; identifying the target region based on the image; obtaining a first position of the ionization chamber in a spatial coordinate system; obtaining a selectable detection region of the ionization chamber based on the first position; determining the target detection region of the ionization chamber according to the target region and the selectable detection region, so that the target detection region is within the target region.

IPC Classes  ?

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

Abstract

An image registration method, a system, a device, and a medium are provided. The image registration method includes acquiring a to-be-registered image and a reference image of an object, performing registration on the to-be-registered image and the reference image. Either or both of the to-be-registered image and the reference image is a Histoimage with a PET mode.

IPC Classes  ?

• G06T 7/30 - Determination of transform parameters for the alignment of images, i.e. image registration
• G06T 5/70 - DenoisingSmoothing
• G06T 7/12 - Edge-based segmentation
• G06T 11/00 - 2D [Two Dimensional] image generation

Abstract

The present disclosure is related to systems and methods for radiation. The method may include obtaining a plurality of reference images of a target of a subject and reference physiological motion information of the subject. The plurality of reference images and the reference physiological motion information may be acquired in a radiation period. The method may include establishing a correlation model based on the plurality of reference images and the reference physiological motion information. The method may include monitoring real-time motion information of the target based on the correlation model during a radiation operation performed during the radiation period.

IPC Classes  ?

• A61N 5/10 - X-ray therapyGamma-ray therapyParticle-irradiation therapy
• G06T 7/00 - Image analysis
• G06T 7/246 - Analysis of motion using feature-based methods, e.g. the tracking of corners or segments

Abstract

The present disclosure provides a non-contact transmission system, applied to medical system, comprising a stationary segment, a rotational segment and a non-contact coupling apparatus. A primary side of the non-contact coupling apparatus is connected with the stationary segment. A secondary side of the non-contact coupling apparatus is connected with the rotational segment. The non-contact coupling apparatus is configured to implement transmission of power and signals between the stationary segment and the rotational segment.

IPC Classes  ?

• H01R 39/08 - Slip-rings