Besides, the largest deviation could be up to 13.1 dB between BRSAR and WBDSAR and 9.59 dB between BRSAR and WBRSAR. Our results demonstrated that the BRSAR depended on the frequency, incidence direction, and E-polarization direction of the EMF. At last, the reliability of using whole-body averaged SAR (WBDSAR) and whole-brain averaged SAR (WBRSAR) as estimations of BRSAR were also evaluated. Then, the effects of frequency, incidence direction, and E-polarization direction of plane wave EMF on brain region averaged specific absorption rate (BRSAR) of rats were investigated. In this study, a numerical voxel rat model with 10 segmented brain regions was constructed. However, only dosimetry of whole brain or whole body were evaluated in most of previous studies. Accurate dosimetry of a specific brain region in rats exposed to an electromagnetic field (EMF) is essential for studies focusing on dose-effect relationship of the region.
