- 专利标题: Memory efficiency of parallel magnetic resonance imaging reconstruction
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申请号: US14573515申请日: 2014-12-17
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公开(公告)号: US10061004B2公开(公告)日: 2018-08-28
- 发明人: Boris Mailhe , Qiu Wang , Johannes Flake , Mariappan S. Nadar , Laszlo Lazar , Yuanhsi Chen
- 申请人: Siemens Healthcare GmbH
- 申请人地址: DE Erlangen
- 专利权人: Siemens Healthcare GmbH
- 当前专利权人: Siemens Healthcare GmbH
- 当前专利权人地址: DE Erlangen
- 主分类号: G01V3/00
- IPC分类号: G01V3/00 ; G01R33/561 ; G01R33/56
![Memory efficiency of parallel magnetic resonance imaging reconstruction](/abs-image/US/2018/08/28/US10061004B2/abs.jpg.150x150.jpg)
摘要:
A computer-implemented method for reconstructing magnetic resonance images using a parallel computing platform comprising a host unit and a graphical processing device includes receiving a plurality of coil data sets from a magnetic resonance imaging system, each respective coil data set comprising scanner data and a coil sensitivity map associated with a distinct coil included in the magnetic resonance imaging system. An iterative compressed-sensing reconstruction process is applied to reconstruct an image based on the plurality of coil data sets. Each iteration of the iterative compressed-sensing reconstruction process comprises: individually transferring the plurality of coil data sets from the host unit to the graphical processing device using a plurality of asynchronous data streams, overlapping with transfer of the plurality of coil data sets, optimizing a plurality of data fidelity values on the graphical processing device, each respective data fidelity value corresponding to a distinct coil data set, and computing an estimated image on the graphical processing device based on the plurality of data fidelity values.