FDTD comparison of SAR and temperature rise in human tissue

A comparison is made between the peak SAR (specific absorption rate) location and distribution in human tissue with the resulting temperature rise caused by the SAR. The temperature change includes cooling effects from the perfusion of blood and may be a better indicator of tissue damage caused by exposure. This paper describes a technique for computing the temperature rise in a finite difference approach for voxel-based geometry files. An example is presented for a simplified cellular telephone radiating by a human head.