Shanghai United Imaging Healthcare

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.

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).

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 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.

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.

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.

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.

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.

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.