发明申请
US20140292337A1 Decoupling of Parallel Transmission Arrays in Magnetic Resonance Imaging
审中-公开
并联传输阵列在磁共振成像中的去耦
- 专利标题: Decoupling of Parallel Transmission Arrays in Magnetic Resonance Imaging
- 专利标题(中): 并联传输阵列在磁共振成像中的去耦
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申请号: US13918461申请日: 2013-06-14
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公开(公告)号: US20140292337A1公开(公告)日: 2014-10-02
- 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
- 主分类号: G01R33/36
- IPC分类号: G01R33/36
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.