Ling Xia1, Minhua Zhu1, Guofa
Shou1, Feng Liu2, Stuart Crozier2
1Department of Biomedical
Engineering, Zhejiang University, Hangzhou, China, People's Republic of; 2School
of Information Technology & Electrical Engineering, University of
Queensland, Brisbane, Australia
This paper presents a finite difference (FD) based method for the design of gradient coils in MRI. The design method firstly uses the FD approximation to describe the current density of the coil space and then employs the stream function method to extract the coil pattern. During the numerical implementation, a linear equation has been constructed and solved using a regularization scheme. This abstract briefly describes the algorithm details through X-gradient coil design examples. The proposed gradient coil design scheme can be integrated into a finite-difference based EM framework, which can handle multi-physics including RF and gradient fields presented in the MR engineering.
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