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公开(公告)号：US20230274418A1
公开(公告)日：2023-08-31
申请号：US17652528
申请日：2022-02-25
CPC分类号： G06T7/0012 , G16H30/40 , G01R33/4818 , G06T2207/20084 , G06T2207/20081 , G06T2207/10088
摘要： For reconstruction in medical imaging, self-consistency using data augmentation is improved by including data consistency. Artificial intelligence is trained based on self-consistency and data consistency, allowing training without supervision. Fully sampled data and/or ground truth is not needed but may be used. The machine-trained model is less likely to reconstruct images with motion artifacts, and/or the training data may be more easily gathered by not requiring full sampling.
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公开(公告)号：US20230273280A1
公开(公告)日：2023-08-31
申请号：US18142332
申请日：2023-05-02
IPC分类号： G01R33/34 , G01R33/385
CPC分类号： G01R33/34007 , G01R33/3858
摘要： A magnetic resonance (MR) local coil, a magnetic resonance apparatus with an MR local coil, and a method for producing an MR local coil are provided. The MR local coil includes an outer casing, an antenna structure, and a frame for accommodating the antenna structure. The outer casing is embodied in a flexible manner and surrounds an inner area. The frame is embodied in a rigid manner, at least in regions, and is connected to the outer casing in a fixed manner. The antenna structure is arranged in the inner area of the outer casing and is held in position by the frame.
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93.发明授权公开(公告)号：US11733330B2
公开(公告)日：2023-08-22
申请号：US17168366
申请日：2021-02-05
发明人： David Grodzki , Michael Köhler , Dieter Ritter
IPC分类号： G01R33/44 , G01R33/483 , G01R33/34
CPC分类号： G01R33/445 , G01R33/34038 , G01R33/4831 , G01R33/4838
摘要： The disclosure relates to a magnetic resonance tomography scanner and to a method for operating the magnetic resonance tomography scanner. The method includes determining a B0 field map. The method further includes determining an excitation of the nuclear spins to be achieved and a spectrally selective excitation pulse for transmission by a transmitter by way of an antenna as a function of the B0 field map. In the method, the excitation pulse is configured here to generate the excitation of the nuclear spins to be achieved in the patient. The excitation pulse is then output by way of the antenna.
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公开(公告)号：US11730388B2
公开(公告)日：2023-08-22
申请号：US16897571
申请日：2020-06-10
发明人： Gerhard Laub , Peter Schmitt , David Grodzki , Waqas Majeed , Wuyi Zhao
IPC分类号： A61B5/055 , G01R33/56 , G01R33/563
CPC分类号： A61B5/055 , G01R33/5608 , G01R33/5635
摘要： In the field of MRI, a model-based MRI image reconstruction technique is provided. The model-based reconstruction technique increases the performance of Time-of-Flight MRA. In a learning phase, a model is calculated from a sufficiently large set of data acquired at both low and high magnetic fields, using deep learning strategies. In a clinical phase, the model is applied to measured data generating high MR image quality.
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95.发明公开公开(公告)号：US20230259820A1
公开(公告)日：2023-08-17
申请号：US18066079
申请日：2022-12-14
发明人： Noha El-Zehiry , Gareth Funka-Lea , Puneet Sharma
摘要： Systems and methods for smart selection of training data sets by using clinically driven application dependent evaluation metrics to assess the performance of deep learning models after deployment in the field. A machine trained model is deployed to a clinical environment. An evaluation metric is acquired that correlates with a clinical outcome for each instance of the machine trained model performing the task for a medical procedure. Data sets are flagged that are challenging for the machine trained model based on the evaluation metrics. The flagged data sets are prioritized during retraining of the machine trained model.
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公开(公告)号：US20230258753A1
公开(公告)日：2023-08-17
申请号：US18169350
申请日：2023-02-15
发明人： Swen CAMPAGNA
CPC分类号： G01R33/5608 , H04L9/0643 , H04L9/50
摘要： A method for storing MR implant information data, comprises: receiving a request for storing MR implant information data for an implant; determining a hash for the MR implant information data; generating a block for a blockchain, wherein the block includes the hash and a reference to a previous block in the blockchain; storing the MR implant information data in a memory; and registering the block in the blockchain.
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公开(公告)号：US20230258752A1
公开(公告)日：2023-08-17
申请号：US18109948
申请日：2023-02-15
发明人： Matthias Gebhardt , Axel vom Endt
IPC分类号： G01R33/383 , G01R33/385 , G01R33/54
CPC分类号： G01R33/383 , G01R33/385 , G01R33/543
摘要： A magnetic resonance device for acquiring magnetic resonance data of an object, the magnetic resonance device including a main magnet operable to provide a main magnetic field along at least one surface of the main magnet, wherein the main magnet comprises: a first magnet segment; a second magnet segment; and a cavity to accommodate the second magnet segment, wherein the second magnet segment is arranged in the cavity of the main magnet, and wherein the second magnet segment is variably positioned and/or oriented relative to the first magnet segment to adjust a magnetic field contribution of the second magnet segment to the main magnetic field.
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98.发明公开公开(公告)号：US20230255563A1
公开(公告)日：2023-08-17
申请号：US17672992
申请日：2022-02-16
IPC分类号： A61B5/00 , A61B5/055 , G01R33/341
CPC分类号： A61B5/704 , A61B5/055 , G01R33/341 , A61B2503/045
摘要： The invention relates to an insertable patient table for a Magnetic Resonance Imaging scanner, wherein the patient table has a length of up to ± 20 % of the length of the bore of the main magnet of the scanner and is adapted for pediatric and/or small patients, and wherein the patient table is adapted to be inserted into the bore of the main magnet without having a stand standing on the floor of an examination room. The invention further relates to a Magnetic Resonance Imaging scanner comprising an insertable patient table and a method for positioning a small and/or pediatric patient within the bore of a main magnet of a Magnetic Resonance Imaging scanner.
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99.发明公开公开(公告)号：US20230252636A1
公开(公告)日：2023-08-10
申请号：US18165510
申请日：2023-02-07
CPC分类号： G06T7/0016 , G06T7/38 , G06T7/13 , G06T7/181 , G06T2207/10016 , G06T2207/20212 , G06T2207/20076 , G06T2207/10116 , G06T2207/30101 , G06T2207/20084 , G06T2207/20081
摘要： One or more example embodiments of the present invention relates to a method for the automated determination of examination results in an image sequence from multiple chronologically consecutive frames, the method comprising determining diagnostic candidates in the form of contiguous image regions in the individual frames for a predefined diagnostic finding; and for a number of the diagnostic candidates, determining which candidate image regions in other frames correspond to the particular diagnostic candidate, determining whether the candidate image regions of the particular diagnostic candidate in the other frames overlap with other diagnostic candidates, generating a graph containing the determined diagnostic candidates of the frames as nodes and the determined overlaps as edges, and generating communities from nodes connected via edges.
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公开(公告)号：US20230252629A1
公开(公告)日：2023-08-10
申请号：US18150834
申请日：2023-01-06
发明人： Kaloian Petkov , Rishabh Shah
CPC分类号： G06T7/0012 , G16H30/40 , G06T15/06 , G06T7/50
摘要： A layout of labels for annotating a rendered image is optimized. A rendered image is obtained, and locations of a plurality of regions of interest in the rendered image are determined. Semantic information associated with the plurality of regions of interest is obtained. Based on the semantic information and the locations of the plurality of regions of interest, and, taking into account a visibility of the labels and a further visibility of the regions of interest in the rendered image, the layout of the labels for annotating the plurality of regions of interest in the rendered image is determined.
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