1.Department of Biomedical Engineering
and Guangdong Provincial Key Laboratory
of Medical Image Processing, Southern
Medical University, Guangzhou Guangdong
510515, China; 2. Shanghai Chenguang
Medical Technologies Co., LTD, Shanghai
201707, China
Abstract：This work compared the reconstruction errors (REs) of the currently popular algorithm of MR-based
electrical properties tomography (MR EPT) while applied in inhomogeneous object at 1.5, 3 and 7 T. The
B1 +
data of an inhomogeneous phantom were simulated at the three resonance frequencies. The currently
popular algorithm of MR EPT was used to reconstruct the electrical property (EP) distributions inside
the phantom. The absolute RE (aRE) and relative RE (rRE) maps in addition to the mean rREs were
calculated to compare the REs occurring at different resonance frequencies. The maximums of maximum
and mean rREs were observed at 1.5T, on the contrary, the minimums of maximum and mean rREs
were observed at 7T. The REs varied with different resonance frequencies, and the REs decreased as the
resonance frequency increased.
胥超1，段松1，王佳佳1，胡灿1，邓官华1，何钧2，张松涛2，汤洪明2，辛学刚1. 1.5T、3T和7T下MR EPT核心算法在非均匀组织中的误差比较[J]. 中国医疗设备, 2016, 31(5): 15-18.
XU Chao1, DUAN Song1，WANG Jia-jia1，HU Can1，DENG Guan-hua1，HE Jun2，ZHANG Song-tao2，TANG Hong-ming2，XIN Xue-gang1. Comparison of the Reconstruction Errors of the Currently Popular Algorithm of MR EPT in an Inhomogeneous Phantom at 1.5, 3 and 7 T. China Medical Devices, 2016, 31(5): 15-18.
