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11.发明授权公开(公告)号：US10663547B2
公开(公告)日：2020-05-26
申请号：US16051919
申请日：2018-08-01
发明人： David Grodzki , Donald Hardie , Katharina Hesels , Lars Lauer , Edgar Mueller
摘要： In a method and apparatus for determining measurement protocol parameters of a magnetic resonance (MR) image, a first MR image exhibiting first contrast properties, is read into a computer and at least one first contrast ratio is determined in the computer from the first contrast properties. The computer then determines the measurement protocol parameters dependent on the at least one first contrast ratio, in order to generate a second MR image exhibiting second contrast properties such that the second contrast properties approximate, as closely as possible, to the first contrast properties. The measurement protocol parameters are presented as an output from the computer.
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12.发明授权公开(公告)号：US10663546B2
公开(公告)日：2020-05-26
申请号：US15881471
申请日：2018-01-26
发明人： Christoph Forman , Edgar Mueller , Michaela Schmidt , Jens Wetzl
IPC分类号： G01R33/483 , G01R33/44 , G01R33/48 , G01R33/567 , G01R33/561 , G01R33/54 , G01R33/56 , G01R33/563 , G01R33/28
摘要： In a method and magnetic resonance apparatus for recording diagnostic measurement data of a heart of an examination object, the magnetic resonance apparatus is operated by a control sequence wherein an RF pulse excites nuclear spins with a flip angle of at least 60°, the diagnostic measurement data are recorded in a coordinate system independent of the heart, and the basic magnetic field produced by the magnetic resonance apparatus is smaller than 1.0 tesla.
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公开(公告)号：US10275907B2
公开(公告)日：2019-04-30
申请号：US15341195
申请日：2016-11-02
摘要： The invention concerns a method for reconstructing medical image data which has access to free capacities of at least two computers and manages the use thereof for the purposes of the reconstruction. The method is a particularly reliable alternative to the reconstruction of medical image data based on algorithms that would require a working memory of above-average size.
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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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