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公开(公告)号：US20240331225A1
公开(公告)日：2024-10-03
申请号：US18464454
申请日：2023-09-11
IPC分类号： G06T11/00 , G01R33/567
CPC分类号： G06T11/006 , G01R33/567 , G06T2210/41
摘要： A method of generating at least one image using a magnetic resonance imaging (MRI) system includes generating, for each contrast of a plurality of contrasts, an image by forming a multi-dimensional data matrix by dividing MRI imaging data for a contrast into a plurality of bins and generating the image based on at least the MRI imaging data and the multi-dimensional data matrix. Each bin of the plurality of bins corresponds to one of a plurality of respiratory motion states.
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2.发明公开公开(公告)号：US20240331138A1
公开(公告)日：2024-10-03
申请号：US18191108
申请日：2023-03-28
发明人： Jianing Wang , Michael Schwier , Bernhard Geiger , Sasa Grbic
CPC分类号： G06T7/0012 , A61B5/4576 , G06T7/60 , G06T7/73 , G06T2207/10088 , G06T2207/20076 , G06T2207/20081 , G06T2207/20084
摘要： Systems and methods for calculating a distance between a first point and a second point of an anatomical landmark are provided. An input medical image of an anatomical landmark of a patient is received. One or more probability maps predicting a first point and a second point of the anatomical landmark in the input medical image are generated using a machine learning based model. Locations of the first point and the second point in the input medical image are determined based on the one or more probability maps. A distance between the first point and the second point is calculated based on the locations. The locations of the first point and the second point in the input medical image and/or the calculated distance between the first point and the second point are output.
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公开(公告)号：US20240225583A9
公开(公告)日：2024-07-11
申请号：US18481108
申请日：2023-10-04
发明人： Michael Manhart
CPC分类号： A61B6/5258 , A61B6/06 , A61B6/4035 , A61B6/5205 , G16H30/20 , G16H30/40 , G16H50/20
摘要： A computer-implemented method for providing a 3D image dataset includes identifying an acquisition plan and an acquisition trajectory. The method further includes determining a collimator configuration of a collimation unit for each acquisition positioning, wherein each collimator configuration specifies a spatial arrangement of at least one filter element of the collimation unit such that: X-ray radiation that is emitted by the X-ray source and illuminates a detector row without earlier passing through the volume of interest is filtered, and X-ray radiation that is emitted by the X-ray source and illuminates at least part of a detector row after passing through the volume of interest is transmitted. The method further includes acquiring the X-ray projection images of the object under examination, wherein the collimation unit is adjusted based on the collimator configurations; providing the 3D image dataset by reconstruction from the X-ray projection images.
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公开(公告)号：US20240221157A1
公开(公告)日：2024-07-04
申请号：US18522578
申请日：2023-11-29
发明人： Bernd HOFMANN , Hendrik DITT , Matthias LICHY , Chris SCHWEMMER
CPC分类号： G06T7/0012 , A61B5/02028 , A61B5/021 , A61B5/1076 , G06T7/62 , G16H30/40 , G06T2207/30104
摘要： A method for providing supply data relating to supply to a parenchyma, comprises: receiving first imaging data, wherein the first imaging data relates to the parenchyma and/or a vascular structure that serves to supply the parenchyma; receiving reference data for the supply to the parenchyma; calculating the supply data based on the first imaging data and the reference data, wherein the supply data relates to the supply to the parenchyma; and providing the supply data.
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公开(公告)号：US20240219498A1
公开(公告)日：2024-07-04
申请号：US18521097
申请日：2023-11-28
发明人： Daniel Staeb , Karl-Philipp Kunze , Peter Speier
IPC分类号： G01R33/56 , G01R33/48 , G01R33/565
CPC分类号： G01R33/5608 , G01R33/4818 , G01R33/56509
摘要： Techniques for performing magnetic resonance imaging are provided, which include applying at least two different pulse sequences designed for simultaneous excitation of at least two slices, and measuring k-space lines of the slices with a Parallel Imaging Results in Higher Acceleration (CAIPIRINHA) sampling scheme. Each pulse sequence comprises multiple different phase patterns, each phase pattern is used for exciting one of the slices, and the phase patterns of different pulse sequences are arranged relative to each other according to a Hadamard encoding. Images are reconstructed from the measured k-space lines by forming image slices based on different linear combinations of corresponding slices acquired with different pulse sequences.
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公开(公告)号：US20240219495A1
公开(公告)日：2024-07-04
申请号：US18523407
申请日：2023-11-29
发明人： Stephan Biber
IPC分类号： G01R33/3873 , G01R33/385
CPC分类号： G01R33/3873 , G01R33/385
摘要： A shim tray designed to be pushed into a shim tray receptacle of a gradient coil unit may elongated and have a length in a longitudinal direction, a height in a radial direction and a width in a circumferential direction. The shim tray may include at least two shim pockets each configured to accommodate at least two shim plates, and at least two shim plates arranged one above the other in a radial direction in one of the shim pockets. The surfaces of the at least two shim plates may have an insulating coating.
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公开(公告)号：US20240210500A1
公开(公告)日：2024-06-27
申请号：US18525054
申请日：2023-11-30
发明人： Florian Maier , Martin Requardt
IPC分类号： G01R33/28 , A61B90/00 , G01R33/483 , G01R33/56
CPC分类号： G01R33/287 , A61B90/37 , G01R33/4835 , G01R33/5608 , A61B2090/374
摘要： A magnetic resonance tomography device and a method for equalized mapping in real time are provided. A first slice and a second slice are captured in three-dimensional (3D) encoding, where the first slice and the second slice are oriented to one another at an angle, and an instrument or trajectory to be mapped lies in an intersecting set of both the first slice and the second slice. A two-dimensional (2D) image may be generated alternately from both the first slice and the second slice and is displayed to a user.
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公开(公告)号：US20240203582A1
公开(公告)日：2024-06-20
申请号：US18525030
申请日：2023-11-30
发明人： Elisabeth Preuhs , Markus Kowarschik , Christian Kaethner , Marcus Pfister , Anne Tjorven Büßen
摘要： A system for monitoring a physiological state of an object under examination in remotely controlled procedures includes a remote control unit for remote control of a remote manipulation unit, the remote manipulation unit for performing a procedure step, a capture unit for capturing state data of the object under examination, and a provider unit for classifying the state of the object under examination. When an expected state is present, the remote manipulation unit performs the procedure step. When a deviating state is present, the provider unit provides a remote signal to the remote control unit and a local signal to the output unit, the output unit outputs to local operating personnel a first workflow notice, and the remote control unit adjusts the remote control of the remote manipulation unit, outputs a second workflow notice to the remote operating personnel, and/or provides an alternative remote control signal.
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公开(公告)号：US20240201300A1
公开(公告)日：2024-06-20
申请号：US18522591
申请日：2023-11-29
发明人： Max Müller , Mario Zeller , Adam Kettinger , Dominik Paul , Thorsten Feiweier , Gudrun Ruyters , Michael Köhler
CPC分类号： G01R33/543 , G01R33/288 , A61B5/055
摘要： A method for determining a parameter setting for a gradient power of a magnetic resonance system by an electronic computing device. The method includes specifying a limit value for a nerve stimulation in the case of a person positioned in the magnetic resonance system, entering at least one gradient parameter for a pulse of the gradient power as the parameter setting by an input device of the electronic computing device, approximating a potential nerve stimulation as a function of the at least one gradient parameter by a predefined mathematical model of the electronic computing device, comparing the approximated potential nerve stimulation with the predefined limit value by the electronic computing device, and determining the parameter setting as a function of the comparison.
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公开(公告)号：US20240201289A1
公开(公告)日：2024-06-20
申请号：US18519631
申请日：2023-11-27
发明人： Volker Schnetter
IPC分类号： G01R33/28
CPC分类号： G01R33/288
摘要： A method performed by an MRI system includes: receiving at least one object parameter value of an object to be examined in accordance with a predefined MRI protocol; determining a frequency distribution of deposition values of examined objects, each having the at least one object parameter value, from available MRI examination datasets; determining, by a control unit of the MRI system, a reference deposition value of the examined objects, each having the at least one object parameter value, from the frequency distribution of the deposition values of the examined objects, each having the at least one object parameter value, for a predefined reference proportion in accordance with a predefined reference determining procedure; and determining, as a function of the reference deposition value, at least one MRI protocol parameter of the predefined MRI protocol for examining the object to be examined, in accordance with a predefined MRI protocol optimization procedure.
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