Hidetoshi Ebara

RF dosimetry using Japanese anatomical models

The Specific Absorption Rate (SAR) calculations of an anatomical model with respect to regions other than the temporal region have been studied. In those calculations, the Visible Human (VH) model has been mainly used as the anatomically based whole-body realistic human model. We employ two Japanese anatomical models that are realistic high-resolution whole-body voxel models of Japanese adult male and female of average height and weight. In this paper, we show the SAR calculation results pertaining to the VH model and the two anatomical models using the FDTD method when an antenna is located in close proximity to the trunk of the body. In addition, multi-layered flat shape phantoms are introduced to evaluate the effects of tissue thickness and tissue composition. As a result, it is shown that the SAR is affected by a standing wave due to not only fat but also air in the region of the abdomen.