Fundamental Heating Characteristics of an RF Hyperthermic System Using a Rectangular Resonant Cavity Applicator for Deep-Seated Tumors

概要

論文の詳細を見る
Many heat applicators for hyperthermia have been developed ; however, in treatment of noninvasive cancer they can heat only the body surface. At present, it is difficult to selectively heat deep-seated tumors.It is desirable to develop an applicator with the potential for heating a limited region, but achieving this objective is impossible with present technology. Therefore, our goal is to develop an applicator that can uniformly heat to deep regions of the human body.In this paper, we describe fundamental heating characteristics of an RF hyperthermic system using a rectangular resonant cavity applicator for deep-seated tumors. First, electromagnetic and heat-transfer equations were solved to investigate fundamental heating characteristics of the resonant cavity applicator. In the experiments, a torso-shaped dielectric phantom, which has electrical constants close to human muscle, was used. In comparisons of the measured and calculated results, the tendencies of both heat distributions were in accordance. These results indicated the possibility of heating deep regions ; thus, this applicator has the potential to heat deep-seated tumors.
日本ハイパーサーミア学会の論文