Numerical study of temperature distribution in tissue for thermal coagulation therapy

Abstract Thermal coagulation technique in which tumors are locally heated up to 60–80°C can be realized by application of AC magnetic field from external coils to tumors covered with magnetic particles. We study numerically the temperature distribution in living tissue containing ferrite powder. With this temperature distribution, we calculate the magnitude of damaged region in tissue including a tumor and show a relation between tumor radii and the power of AC magnetic field.