A New Procedure for the Prevention of Surface Overheating in Deep Hyperthermia Using RF Capacitive Heating Eguipment

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  • RF電界型加温装置による深部加温技術の改良- “オーバーレイボーラス” によるedge効果の改善とその臨床的有用性について-

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Surface overheating is a most frequent limiting factor in clinical application of RF capacitive heatig of deep seated tumors. The surface hot spots often occured around the margin of electrodes and were not prevented merely by perfusing cold water into the conventional pads attached to the electrodes. We have designed a new type coolig pad, 33 × 37 cm in size and 2 cm thick, which is put beneath the conventional pad and widely covers the skin surface. In the phantom experiments and clinical trials of deep hyperthermia using Thermotron RF8, the excessive surface heating around the margin of the electrodes completely disappeared by this new cooling pad.

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