Abstract #4575

High dielectric material application in fetal MR imaging at 3T

Chao Luo^1,2, Nan Li^1,2, Guoxi Xie³, Xiaoliang Zhang^4,5, Xin Liu^1,2, and Ye Li^1,2

¹Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China, ²Shenzhen Key Laboratory for MRI, Shenzhen, China, ³School of Basic Science, Guangzhou Medical University, Guangzhou, China, ⁴Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, United States, ⁵UCSF/UC Berkeley Joint Graduate Group in Bioengineering, San Francisco, CA, United States

In this paper, we evaluated the imaging performance in fetal imaging for supine and lateral positions of pregnant patients with/without high permittivity dielectric pad at 3T through numerical modeling and simulation. The results suggest that the lateral position is advantageous over the supine positions in terms of B1+ efficiency and SAR or MR safety.

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