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1. 发明授权

US11151414B2 Training image enhancement model and enhancing image 有权
公开(公告)号：US11151414B2
公开(公告)日：2021-10-19
申请号：US15930047
申请日：2020-05-12
申请人： Shanghai Neusoft Medical Technology Co., Ltd.
发明人： Feng Huang
IPC分类号： G06K9/62 , G06N3/08 , G06T5/00
摘要： Methods, devices, systems and apparatus for training image enhancement models and enhancing images are provided. In one aspect, a method of training an image enhancement model includes: for each of one or more constraint features, processing a ground truth image with the constraint feature to obtain a feature image corresponding to the constraint feature, for each of the one or more feature images, using the ground truth image and the feature image to train a convolutional neural network (CNN) structure model corresponding to the feature image, determining a loss function of the image enhancement model based on the one or more CNN structure models corresponding to the one or more feature images, and establishing the image enhancement model based on the loss function. A to-be-enhanced image can be input into the established image enhancement model to obtain an enhanced image.

2. 发明申请

US20200341158A1 CRYSTAL ARRAY, DETECTOR, MEDICAL DETECTION DEVICE AND METHOD OF MANUFACTURING CRYSTAL ARRAY 审中-公开
公开(公告)号：US20200341158A1
公开(公告)日：2020-10-29
申请号：US16859723
申请日：2020-04-27
申请人： Shanghai Neusoft Medical Technology Co., Ltd.
发明人： Xinying LI , Xi WANG , Jian ZHAO , Baowei XU , Guodong LIANG
IPC分类号： G01T1/29 , G01T1/20 , G01T1/202 , G01T1/164
摘要： A crystal array, a detector, a medical detection device and a method for manufacturing a crystal array are provided. The crystal array includes a plurality of crystals arranged in an array, each of the crystals having a light incident surface, a light exit surface, and a connection surface connecting the light incident surface to the light exit surface, where the connection surface of at least one of two adjacent crystals includes a rough surface and a smooth surface connected to the rough surface, and the rough surface and the smooth surface are arranged along a length direction of the crystal.

3. 发明授权

US10646189B2 Controlling motion position of multi-leaf collimator 有权
公开(公告)号：US10646189B2
公开(公告)日：2020-05-12
申请号：US15670286
申请日：2017-08-07
申请人： Shanghai Neusoft Medical Technology Co., Ltd.
发明人： Feng Jin
IPC分类号： A61B6/00 , A61N5/10 , A61B6/06 , G21K1/04 , G08C23/06
摘要： Methods and devices for controlling a motion position of a multi-leaf collimator are provided. An example device includes a control system and two trolleys connected with the control system. The multi-leaf collimator includes two rows of leaves arranged in opposite sides, and each of the trolleys carries one row of the leaves. Each trolley is movably connected with a first screw rod and driven by a first motor connected with the first screw rod. A first encoder is arranged on the first motor and operable to feed back first position information of the trolley to the control system. A displacement sensor is arranged on the first screw rod and operable to feed back second position information of the trolley to the control system. The control system is operable to control the motion position of the trolley based on the first position information and the second position information.

4. 发明授权

US11550069B2 Detector modules, detectors and medical imaging devices 有权
公开(公告)号：US11550069B2
公开(公告)日：2023-01-10
申请号：US17014785
申请日：2020-09-08
申请人： Shanghai Neusoft Medical Technology Co., Ltd.
发明人： Jun Yu , Shuangxue Li , Yiguang Tan
IPC分类号： G01T1/20 , A61B6/03 , A61B6/00
摘要： Detector modules, detectors and medical imaging devices are provided. One of the detector modules includes: a support and a plurality of detector sub-modules arranged on the support along an extension direction in which the support extends. Each of the detector sub-modules has a first area and a second area in the extension direction. A detecting device is disposed in the first area, and a functional module is disposed in the second area. The functional module is electrically connected to the detecting device for receiving an electrical signal from the detecting device. The plurality of detector sub-modules includes a first detector sub-module and a second detector sub-module that are arranged adjacent to each other in the extension direction, and the first area of the first detector sub-module at least partially overlaps with the second area of the second detector sub-module.

5. 发明授权

US11311255B2 Medical detectors and medical imaging devices 有权
公开(公告)号：US11311255B2
公开(公告)日：2022-04-26
申请号：US16931874
申请日：2020-07-17
申请人： Shanghai Neusoft Medical Technology Co., Ltd.
发明人： Xi Wang , Xinying Li , Jian Zhao , Baowei Xu , Guodong Liang
IPC分类号： A61B6/00 , G01T1/20 , A61B6/03 , A61B6/04 , G01T1/202 , G01T1/29
摘要： Medical detectors and medical imaging devices are provided. In one aspect, a medical detector includes: a photoelectric conversion device, a first crystal array layer disposed over the photoelectric conversion device, and a second crystal array layer disposed over the first crystal layer. The first crystal array layer includes a plurality of first scintillation crystals arranged in a first crystal array, and a first coupling medium being filled between every adjacent two of the first scintillation crystals. The second crystal array layer includes a plurality of second scintillation crystals arranged in a second crystal array, and a second coupling medium being filled between every adjacent two of the second scintillation crystals. A light transmittance of the second coupling medium is different from a light transmittance of the first coupling medium.

6. 发明授权

US11294011B2 Magnetic resonance imaging with deep neutral networks 有权
公开(公告)号：US11294011B2
公开(公告)日：2022-04-05
申请号：US16735874
申请日：2020-01-07
申请人： Shanghai Neusoft Medical Technology Co., Ltd.
发明人： Feng Huang , Dong Han , Ling Mei
IPC分类号： G01R33/561 , G01R33/48 , G01R33/56
摘要： Methods, devices, apparatus and systems for magnetic resonance imaging with deep neural networks are provided. In one aspect, a method of magnetic resonance imaging method combines a deep neural network and an accelerated imaging manner. The method includes: scanning a subject with a first undersampling factor and a first sampling trajectory to obtain first imaging information, processing the first imaging information with the deep neural network to obtain second imaging information corresponding to a second undersampling factor that is smaller than the first undersampling factor, and reconstructing a magnetic resonance image of the subject from the second imaging information.

7. 发明授权

US11150364B2 Crystal array, detector, medical detection device and method of manufacturing crystal array 有权
公开(公告)号：US11150364B2
公开(公告)日：2021-10-19
申请号：US16859723
申请日：2020-04-27
申请人： Shanghai Neusoft Medical Technology Co., Ltd.
发明人： Xinying Li , Xi Wang , Jian Zhao , Baowei Xu , Guodong Liang
IPC分类号： G01T1/164 , G01T1/29 , G01T1/20 , G01T1/202
摘要： A crystal array, a detector, a medical detection device and a method for manufacturing a crystal array are provided. The crystal array includes a plurality of crystals arranged in an array, each of the crystals having a light incident surface, a light exit surface, and a connection surface connecting the light incident surface to the light exit surface, where the connection surface of at least one of two adjacent crystals includes a rough surface and a smooth surface connected to the rough surface, and the rough surface and the smooth surface are arranged along a length direction of the crystal.

8. 发明申请

US20210093279A1 RECONSTRUCTING IMAGE 有权
公开(公告)号：US20210093279A1
公开(公告)日：2021-04-01
申请号：US17037301
申请日：2020-09-29
申请人： Shanghai Neusoft Medical Technology Co., Ltd.
发明人： Rumei ZHANG , Long YANG , Peng GAO , Guodong LIANG , Jun ZHANG
IPC分类号： A61B6/00 , A61B6/03 , G06T11/00
摘要： The present disclosure relates to reconstructing an image. According to an embodiment of the present disclosure, identifying a plurality of first scan data sets and a second scan data set from PET scan data, wherein each of the first scan data sets corresponds to an intra-crystal Compton scattering event occurred in a plurality of crystals of a detector and includes two or more first single event data groups, and each of the first single event data groups comprises an energy value less than a preset first energy threshold, the second scan data set comprises one or more second single event data groups and each of the second single event data groups comprises an energy value exceed a preset second energy threshold; for each of the plurality of first scan data sets: searching the second scan data set for a target second single event data group which matches with the first scan data set; obtaining first coincidence event data from each of the first single event data groups in the first scan data set and the target second single event data group as coincidence event data recovered from an intra-crystal Compton scattering event corresponding to the first scan data set; reconstructing an image with the first coincidence event data and second coincidence event data which involves coincidence events corresponding to the second scan data set.

9. 发明授权

US10809337B2 Reconstructing magnetic resonance images with different contrasts 有权
公开(公告)号：US10809337B2
公开(公告)日：2020-10-20
申请号：US16050404
申请日：2018-07-31
申请人： Shanghai Neusoft Medical Technology Co., Ltd.
发明人： Feng Huang
IPC分类号： G01R33/56 , G01R33/48 , G01R33/54 , G06T5/50 , G06T5/00 , G06T11/00
摘要： A method and a device for reconstructing magnetic resonance images with different contrasts are provided. According to an example of the method, after collecting magnetic resonance signal data recorded in k-space of N contrasts by N number of magnetic scans, a first image for each of the contrasts may be obtained by performing image reconstruction according to the magnetic resonance signal data corresponding to the contrast; an association coefficient of each of the contrasts may be determined according to the first images for the N contrasts; and a second image shared with the N contrasts may be obtained by performing image reconstruction based on the magnetic resonance signal data of the N contrasts and the association coefficient of each of the N contrasts. In this way, a reconstructed image for each of the contrast may be obtained by combining the association coefficient of the contrast with the second image.

10. 发明授权

US10719960B2 Reconstructing image 有权
公开(公告)号：US10719960B2
公开(公告)日：2020-07-21
申请号：US15960923
申请日：2018-04-24
申请人： Shanghai Neusoft Medical Technology Co., Ltd.
发明人： Shaolian Liu , Jie Chang , Ming Li
IPC分类号： G06T11/00 , G06T5/40 , G06T7/00
摘要： Methods, devices and apparatus for reconstructing an image are provided. In an aspect, a method includes: obtaining coincidence events detected by crystal pairs in a detector of a PET device by scanning a phantom, reconstructing a phantom image according to the coincidence events, and obtaining a time calibration amount of each of crystals in the detector by determining a crystal based source position deviation and a crystal based source time difference of a crystal pair including the crystal according to the phantom image, determining a time difference of the crystal pair according to respective time differences for the crystal pair detecting a plurality of coincidence events, pre-calibrating the time difference of the crystal pair with the crystal based source time difference, and obtaining the time calibration amount of the crystal according to the pre-calibrated time difference of the crystal pair.

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