抄録
This paper describes the heating properties of a resonant cavity applicator for heating brain tumors calculated by Finite Element Method (FEM) with blood vessels. The blood flow rate is needed for calculating the temperature distribution during hyperthermia treatments. In previous study, the mean rate of blood flow through human tissue was used hi the conventional method with FEM. However, the accuracy of the calculated temperature distribution around a large blood vessel was not so high. In this study, first, we reconstructed a 3-D anatomical FEM model from 2-D medical images using a 3-D CAD software. Second, we calculated temperature distributions with a 3-D anatomical human head model by solving the bio-heat transfer equation. Furthermore, a comparison of the temperature distributions when considering the blood vessel was discussed. From these results, it was found that temperature estimation during hyperthermia treatments with the cooling effect of blood perfusion is required.
