A fast integral equation method for simulating high-field radio frequency coil arrays in magnetic resonance imaging

作者:Wang Shumin*; de Zwart Jacco A; Duyn Jeff H
来源:Physics in Medicine and Biology, 2011, 56(9): 2779-2789.
DOI:10.1088/0031-9155/56/9/010

摘要

A fast full-wave numerical approach was developed for simulating high-field multi-channel radio-frequency (RF) receive coil arrays in magnetic resonance imaging. To improve the efficiency, the impedance matrix was compressed by a multilevel adaptive cross approximation method. Furthermore, careful organization of multiple coil simulations was applied so that the impedance matrix associated with biological subjects is constructed and pre-conditioned only once. Numerical examples demonstrate the efficacy of the proposed approach for RF coil simulations.

  • 出版日期2011-5-7