Designing a Hemispherical Breast RF Coil Array for MRI
XU Wen-long
ZHANG Ju-cheng
WANG Zhi-kang
LI Xing-xin
LOU Hai-fang
摘要：In this paper, an approach to the design of hemispherical breast RF coil array is proposedThe target field method is applied to find the current density distribution on the hemisphere surface, which induces a homogeneous magnetic field in a hemispherical volumeThe components of current density are expanded into Fourier series, and the highly ill-conditioned character of the linear equation related to Fourier coefficients is solved using the Tikhonov regularization method with a minimum curvature penalty functionThe winding pattern was acquired using the stream function techniqueThe results indicate that a simple winding pattern with homogeneous magnetic field can be obtained through manually selecting the penalty factor.
机标关键词：current density distributionmagnetic fieldregularization methodFourier coefficientstarget field methodstream functionlinear equationpenalty factor
分类号：R445.2(诊断学)
论文发表日期：2015-01-01
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：8( 9-16 )
英文信息