- 专利标题: Decoupling of parallel transmission arrays in magnetic resonance imaging
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申请号: US13918461申请日: 2013-06-14
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公开(公告)号: US10295624B2公开(公告)日: 2019-05-21
- 发明人: Elfar Adalsteinsson , Luca Daniel , Bastien Guerin , Zohaib Mahmood , Markus Vester , Lawrence Wald
- 申请人: Elfar Adalsteinsson , Luca Daniel , Bastien Guerin , Zohaib Mahmood , Markus Vester , Lawrence Wald
- 申请人地址: US MA Cambridge US MA Boston DE Erlangen
- 专利权人: Massachusetts Institute of Technology,Massachusetts General Hospital,Siemens Healthcare GmbH
- 当前专利权人: Massachusetts Institute of Technology,Massachusetts General Hospital,Siemens Healthcare GmbH
- 当前专利权人地址: US MA Cambridge US MA Boston DE Erlangen
- 主分类号: G01V3/00
- IPC分类号: G01V3/00 ; G01R33/36 ; G01R33/561
摘要:
A method of determining a decoupling matrix of a decoupling system for an array of coils of a parallel transmission magnetic resonance imaging (MRI) system includes obtaining impedance matrix data for the array of coils without the decoupling system, determining, based on the impedance matrix data for the array of coils, an objective function representative of deviation from a decoupled operating condition for the array of coils in which the array of coils are decoupled via the decoupling system, and defining, with a processor, a decoupling matrix representative of a set of impedances of the decoupling system with an iterative procedure that optimizes elements of the decoupling matrix to minimize the objective function and reach the decoupled operating condition.