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Abstract #4908

A Statistical Study of Head Models for Local SAR Simulation

Yu Shao 1 , Peng Zeng 2 , and Shumin Wang 2

1 Auburn University, Auburn, Alabama, United States, 2 Auburn University, Alabama, United States

Subject-specific local SAR analysis is critical to the safety of multi-channel transmission at high fields. In order to calculate the local SAR, subject numerical models need to be constructed at first. However, highly detailed subject models may not be available because they require high-resolution images, which in turn require the local SAR problem to be solved at first place. In a previous study, it was found that three-tissue water/fat/air model is sufficiently accurate for local SAR analysis at 3 Tesla. In this study, we shall apply a statistical approach to find the appropriate simplification of head models and its accuracy.

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