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公开(公告)号：US11304619B2
公开(公告)日：2022-04-19
申请号：US16515173
申请日：2019-07-18
发明人： Michael Zenge
IPC分类号： A61B5/055 , G01R33/50 , G06N3/02 , G01R33/54 , G06N3/04 , G06N3/08 , G16H40/63 , A61B5/00 , G16H30/00
摘要： Techniques are described for generating setting parameters for an MRI sequence to be performed, wherein a conditional generative artificial neural network is used that has been trained as part of a conditional generative adversarial net. The techniques also include establishing a conditional generative artificial neural network. The conditioning of the conditional generative artificial neural network can be used to specify a specific medical application or question to obtain setting parameters for an MRI apparatus that are optimized with respect to said application or question.
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公开(公告)号：US10914798B2
公开(公告)日：2021-02-09
申请号：US14038958
申请日：2013-09-27
发明人： Jun Liu , Hui Xue , Marcel Dominik Nickel , Ti-chiun Chang , Mariappan S. Nadar , Alban Lefebvre , Edgar Mueller , Qiu Wang , Zhili Yang , Nirmal Janardhanan , Michael Zenge
摘要： A method for estimating a coil sensitivity map for a magnetic resonance (MR) image includes providing a matrix A of sliding blocks of a 3D image of coil calibration data, calculating a left singular matrix V∥ from a singular value decomposition of A corresponding to τ leading singular values, calculating P=V∥V∥H, calculating a matrix that is an inverse Fourier transform of a zero-padded matrix P, and solving MHcr=(Sr)Hcr for cr, where cr is a vector of coil sensitivity maps for all coils at spatial location r, and M = ( ( 1 1 … 1 0 0 … 0 … … … 0 0 … 0 ) ( 0 0 … 0 1 1 … 1 … … … 0 0 … 0 ) … ( 0 0 … 0 0 0 … 0 … … … 1 1 … 1 ) ) .
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公开(公告)号：US09689947B2
公开(公告)日：2017-06-27
申请号：US14515714
申请日：2014-10-16
发明人： Qiu Wang , Michael Zenge , Edgar Mueller , Mariappan S. Nadar
IPC分类号： G01V3/00 , G01R33/561 , G01R33/48
CPC分类号： G01R33/5611 , G01R33/4826
摘要： A computer-implemented method of selecting a Magnetic Resonance Imaging (MRI) sampling strategy includes selecting a base variable-density sampling pattern and determining a scan time associated with the base variable-density sampling pattern. A modified variable-density sampling pattern is created by modifying one or more parameters of the base variable-density sampling pattern to maximize a sampled k-space area without increasing the scan time. Next, a scan is performed on an object of interest using the modified variable-density sampling pattern to obtain a sparse MRI dataset. Then a sparse reconstruction process is applied to the sparse MRI dataset to yield an image of the object of interest.
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公开(公告)号：US20200214590A1
公开(公告)日：2020-07-09
申请号：US16733235
申请日：2020-01-02
发明人： Simon Bauer , Thorsten Feiweier , Christian Köglmeier , Carsten Prinz , Daniel Nicolas Splitthoff , Michael Zenge , Michael Schneider
摘要： A method for operating a medical diagnostic system that is configured to use a system component of the diagnostic system to generate examination data of a person under examination during an examination procedure is provided. The examination procedure with control of the system component is controlled by a piece of control software, and a component driver exchanges control commands of the control software with the system component in order to control the system component. The method includes providing an event driver that communicates with the control software via an interface of the control software. Via the event driver, a first event is detected in the examination procedure and reported to the event driver. When the first event is detected in the examination procedure, the use of the system component in the examination procedure is modified to a first type defined by the event driver.
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公开(公告)号：US09746538B2
公开(公告)日：2017-08-29
申请号：US14458381
申请日：2014-08-13
发明人： Qiu Wang , Derya Gol Gungor , Michael Zenge , Marcel Dominik Nickel , Edgar Müller , Mariappan S. Nadar
IPC分类号： G01R33/565 , G01R33/561
CPC分类号： G01R33/56545 , G01R33/5611
摘要： Magnetic resonance imaging uses regularized SENSE reconstruction for a reduced field of view, but minimizes folding artifacts. A reference scan is oversampled relative to the reduced field of view. The oversampling provides coil sensitivity information for a region greater than the reduced field of view. The reconstruction of the object for the reduced field of view using the coil sensitivities for the larger region may have fewer folding artifacts.
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公开(公告)号：US10663549B2
公开(公告)日：2020-05-26
申请号：US14552539
申请日：2014-11-25
发明人： Boris Mailhe , Mariappan S. Nadar , Aurélien Stalder , Qiu Wang , Michael Zenge
IPC分类号： G01R33/56 , G01R33/48 , G01R33/561 , G01R33/483
摘要： A method for acquiring a three-dimensional image volume using a magnetic resonance imaging device includes performing a multi-slice or multi-slab acquisition process to acquire a plurality of slices or three-dimensional slabs corresponding to an imaged object. Each respective slice or three-dimensional slab included in the plurality of slices or three-dimensional slabs comprises k-space data. An iterative compressed-sensing reconstruction process is applied to jointly reconstruct the plurality of three-dimensional slabs as a single consistent volume. The iterative compressed-sensing reconstruction process solves a cost function comprising a summation of individual data fidelity terms corresponding to the plurality of three-dimensional slabs.
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公开(公告)号：US11881300B2
公开(公告)日：2024-01-23
申请号：US16676508
申请日：2019-11-07
IPC分类号： G16H30/40
CPC分类号： G16H30/40
摘要： The present disclosure relates to an imaging system for creating an image of an examination object comprising a system component and a control component. The system component has a component property that is able to assume a value in a first value range established by the imaging system. A corresponding system component of another imaging system comprises a corresponding component property with another value range with an overlap range with the first value range. The control component is embodied to control the use of the system component on the creation of the image, wherein the control component can be operated in a compatibility mode. In the compatibility mode, the control component is configured, on the creation of the image, to only allow values that lie within the overlap range for the component property of the system component.
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公开(公告)号：US11523747B2
公开(公告)日：2022-12-13
申请号：US16733235
申请日：2020-01-02
发明人： Simon Bauer , Thorsten Feiweier , Christian Köglmeier , Carsten Prinz , Daniel Nicolas Splitthoff , Michael Zenge , Michael Schneider
摘要： A method for operating a medical diagnostic system that is configured to use a system component of the diagnostic system to generate examination data of a person under examination during an examination procedure is provided. The examination procedure with control of the system component is controlled by a piece of control software, and a component driver exchanges control commands of the control software with the system component in order to control the system component. The method includes providing an event driver that communicates with the control software via an interface of the control software. Via the event driver, a first event is detected in the examination procedure and reported to the event driver. When the first event is detected in the examination procedure, the use of the system component in the examination procedure is modified to a first type defined by the event driver.
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公开(公告)号：US20200022610A1
公开(公告)日：2020-01-23
申请号：US16515173
申请日：2019-07-18
发明人： Michael Zenge
摘要： Techniques are described for generating setting parameters for an MRI sequence to be performed, wherein a conditional generative artificial neural network is used that has been trained as part of a conditional generative adversarial net. The techniques also include establishing a conditional generative artificial neural network. The conditioning of the conditional generative artificial neural network can be used to specify a specific medical application or question to obtain setting parameters for an MRI apparatus that are optimized with respect to said application or question.
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