Electro-thermal computational suit for investigation of RF power absorption and associated temperature change in human body

The RF power absorption and specific absorption rate (SAR) distribution in a simplified three layer head phantom is investigated using a recently developed computational suit for electromagnetic and thermal analysis of biological objects exposed to RF energy. The simulations are based on FDTD methodology which is implemented in the code. The program is suitable for parametric analysis based on various thermal properties of the tissues including blood perfusion to study their influence on temperature change and its distribution associated with RF exposure. Various SAR averaging volumes are considered to find the one that is best correlated with temperature change distribution. The computations are performed at frequencies from 0.3 GHz to 3 GHz.