Abstract
Recently local hyperthermia has become a topic of broad interest. In hyperthermia measurement of temperature distribution inside a body is important to avoid occurrence of a hot spot. At present, the temperatures inside the body are measured as sampled data using invasive tools.
Soft heating method using temperature-sensitive ferrite rod is applied for hyperthermia as a cancer treatment. The heating element developed generates sufficient heat which causes the temperature of a tumor up to 44°C. As an animal experiment, Wistar rats and Walker carcinosarcoma 256 are prepared. The Carcinosarcoma was transplanted into the right femoral regions of the rats. Heating operation was performed twice a week. A necrotic mass formed by a heating device was approximately ellipsoidal. Tumors whose volume were less than 1cm3 vanished almost completely. The method may also be suitable for deep-seated small brain tumor.