Shanghai United Imaging Healthcare Patente

Disclosed is a method for image processing. The method includes: obtaining one or more image sequences, each of the one or more image sequences including one or more images; determining key information of at least a portion of the one or more images in each of the one or more image sequences; and processing the one or more image sequences based on feature information of each of the one or more image sequences, the feature information of each of the one or more image sequences including the key information of the at least a portion of the one or more images in the image sequence.

Embodiments of the present disclosure provide a medical agent generation system, a medical system, and a medical agent generation method. The system includes an agent platform. The agent platform is deployed on a cloud platform. The agent platform is configured to generate and/or edit a medical agent based on input information of a user. The medical agent is exported to a medical system for execution, and/or the medical agent is imported from the medical system for editing.

A method for medical scanning is provided. The method includes: obtaining, via a user terminal, an input of a user specifying scan requirements with respect to a target subject to be scanned; extracting, from the input, scan requirement information; obtaining medical record information of the target subject; and generating a scanning scheme for the target subject by processing the scan requirement information and the medical record information, wherein the processing of the scan requirement information and the medical record information is performed with reference to long-term memory information stored in the at least one storage device, and the long-term memory information comprises at least one of a rule database, a knowledge graph, or a historical scanning scheme database.

Disclosed is a determination method for adaptive radiotherapy. The method includes: obtaining a current fraction image corresponding to a current radiotherapy fraction of a target subject, and obtaining an initial image configured for determining an initial radiotherapy plan for the target subject; determining a trigger analysis result according to the current fraction image, the initial image, and a trigger analysis model; and determining whether to perform adaptive radiotherapy based on the trigger analysis result.

The present application relates to a cathode and a manufacturing method thereof. The method includes: mixing and reacting cations containing a cathode element with a precipitant in a solution to obtain a gelatinous precipitate; and coating the gelatinous precipitate on a surface of a cathode substrate, which is configured for forming the cathode.

A reconstruction method of an Emission Computed Tomography image, an apparatus, a device, and a storage medium are provided in the present invention. The method includes: acquiring a first ECT image sequence, inputting the first ECT image sequence into a trained intermediate frame prediction network to obtain an estimated second ECT image sequence, and reconstructing a target second ECT image sequence based on the estimated second ECT image sequence serving as a prior image. Temporal resolutions of both the target second ECT image sequence and the estimated second ECT image sequence are higher than that of the first ECT image sequence.

The present disclosure relates to a radiation delivery apparatus (10) and a non-transitory computer-readable storage medium. The radiation delivery apparatus (10) includes a radiation head (11) configured to deliver a radiation beam and rotatable about a rotation axis; and a movement mechanism (12) connected to the radiation head (11). The radiation head (11) is movable along the direction of the rotation axis through the movement mechanism (12) and is movable along the beam direction through the movement mechanism (12).

The present application provides a transformer and an X-ray system. The transformer includes M primary windings (100, 110, 120, 130) and M*N distributed magnetic cores (200, 210, 220, 230). 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 (300, 310, 320, 330) 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.

Disclosed are a transformer, a power conversion device, and a medical device. The transformer includes a primary winding, a plurality of magnetic core assemblies, and a plurality of secondary windings. The primary winding is configured to pass through the plurality of magnetic core assemblies. The plurality of secondary windings are wound on the plurality of magnetic core assemblies, respectively. Each of the plurality of magnetic core assemblies has an air gap of the same size. And/or, the transformer includes a capacitor and an impedance element. The capacitor is connected in series with the impedance element. The series-connected capacitor and impedance element are connected to two ends of a corresponding secondary winding.

The present disclosure relates to systems and methods for positioning a region of interest (ROI). The methods may include obtaining an image of an object captured by an imaging device. The methods may extracting image information of the image. The methods may obtaining feature information of a region of interest (ROI) in the object. The methods may determining position information of the ROI in the image using a positioning model based on the image information of the image and the feature information of the ROI.

Embodiments of the present disclosure provide a magnetic resonance imaging (MRI) method, an MRI device, and an anti-interference device. The MRI method is implemented by the MRI device, and the MRI method includes: adjusting an operating frequency of at least one electronic device located inside a scanning room or entering into the scanning room, an adjusted frequency of the electronic device is outside an operating frequency of a magnetic resonance imaging device.

The present disclosure provides a system and method for scanning a subject. The method includes determining reference dimensions, along the width direction of the table, of the subject on the table at positions along the moving direction of the table; dividing, based on the reference dimensions, the subject into at least one region along the moving direction of the table, the at least one region including at least one of a first region or a second region; and controlling a relative motion between the detector and the table to perform scanning on the at least one region in sequence along the moving direction of the table. During scanning one of the at least one region, the detector moves along the width direction of the table relative to the table.

The present disclosure provides a medical imaging system and method. The method may include obtaining a machine learning model and preliminary training data of at least one sample subject. The method may also include generating training input data by processing the preliminary training data, the preliminary training data being superior to the training input data with respect to a data quality parameter. The method may further include determining a trained machine learning model by training the machine learning model based on the training input data and the preliminary training data, the preliminary training data being configured as training target data of the machine learning model.

An MLC is provided, the MLC includes: a plurality of leaves; first driving mechanisms connected to the leaves and configured to drive the leaves to move to form a radiation field; and at least one leaf head mechanism mounted on at least one corresponding leaf of the leaves and configured to adjust the radiation field.

An emission tomography image processing method includes: acquiring local medical images of a target object, where different local medical images correspond to different spatial positions or different tissue regions; predicting noise level information corresponding to the local medical images; and performing, based on the noise level information corresponding to the local medical images, image denoising on the local medical images to obtain a target medical image, where at least two of the local medical images correspond to different noise level information.

Embodiments of the present disclosure provide an image-guided radiation therapy system and a method thereof. The system includes a first detection assembly, at least one imaging source, and a radiation source. The first detection assembly may be configured to determine a first image of a target region of an object by receiving a photon signal generated by a radioactive isotope within the object. The at least one imaging source may be configured to determine a second image by emitting an imaging beam to the target region of the object. The radiation source may be configured to emit a therapeutic beam to the target region of the object. The first detection assembly and the at least one imaging source may be mounted on a first rotatable part, the radiation source may be mounted on a second rotatable part, and the first rotatable part and the second rotatable part may be coaxially and coplanarly arranged. The first rotatable part may be configured to be rotatable independently relative to the second rotatable part.

A position detection device of a multi-leaf collimator (MLC) is provided. The position detection device includes a signal emitting component, a signal feedback component, and a processor. The signal emitting component is configured to emit a signal. The signal feedback component is configured to receive the signal emitted by the signal emitting component and generate a feedback signal in response to the received signal. Installation positions of the signal emitting component and the signal feedback component are arranged so that the signal emitted by the signal emitting component can be projected onto the signal feedback component. The processor communicatively connected with the signal feedback component and configured to receive the feedback signal from the signal feedback component and determine a moving stroke of a leaf of the MLC based on the feedback signal.

The present disclosure provides a photo-counting detector. The photo-counting detector may include a sensor layer, a chip, and a substrate. The sensor layer may be configured to detect incident radiation photons and generate electrical signals. The chip may be electrically connected with the sensor layer and including a plurality of connection components through the chip and one or more processing circuits, wherein each of the one or more processing circuits are electrically connected with one or more parts of the sensor layer through at least one of the plurality of connection components. The substrate may be electrically connected with the chip.

The present disclosure relates to a method for identifying a prompt-γ event, which includes: obtaining first time-of-flight (TOF) data of multiple double coincidence events detected by a detector device; determining second TOF data of one or more triple coincidence events based on the first TOF data, performing verification operations on the second TOF data of the triple coincidence events to determine a prompt-γ event in each of the triple coincidence events. The embodiments of this application can effectively identify prompt gamma photon events by using TOF data, which is helpful for separating dual-nuclide signals.

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