Thermal Medicine(Japanese Journal of Hyperthermic Oncology)
Online ISSN : 1881-9516
Print ISSN : 0911-2529
ISSN-L : 0911-2529
Advantage of an External Cooling Unit in Deep Hyperthermia Using an 8 MHz RF Capacitive Heating Device
ATSUYUKI TOMIMATSUHAJIME IMADAKAZUHIDE KOSAKASATOSHI NOMOTOSUZUSHI KUSANOVALENTINA V. OSTAPENKOHIROMI TERASHIMA
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1999 Volume 15 Issue 2 Pages 65-70

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Abstract

For deep hyperthermia using an 8 MHz radiofrequency (RF) capacitive heating device, overheating the subcutaneous fatty layer is a major problem. Increasing the cooling ability of the overlay bolus circulating liquid by the external cooling unit was carried out to prevent overheating the subcutaneous fatty layer. Using the external cooling unit, the cooling ability was significantly improved at a depth of 1.5 cm from the surface in the agar phantom experiments. In clinical studies, we increased the RF output by over 50% even in cases of a subcutaneous fatty layer over 2 cm. Increasing the cooling ability of the overlay bolus circulating liquid is considered an effective method for deep hyperthermia.

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© Japanese Society for Thermal Medicine
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