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Abstract
Electromagnetic heating of biological tissues was studied using two types of physical models: (a) excised animal tissues and surgical specimens — temperature distribution was analyzed using an infrared camera immediately after microwave irradiation; (b) phantoms made from gels and transparent waxes — temperature distribution was visualized in real time during irradiation by means of liquid crystal films.
The results obtained with various types of applicators operating at 2450 MHz and 434 MHz demonstrate the necessity of surface cooling and the advantage of a “cross-fire” configuration in localized hyperthermia.