PRODUCTION AND MANIPULATION OF ELEVATED-TEMPERATURES IN PIG ABDOMEN WITH A 3-ELECTRODE CAPACITIVE HEATING DEVICE

The ability of a three-electrode capacitive heating device operating a t 13.56 MHz to produce and effect spatial redistribution of hypertherm ic temperatures is demonstrated through abdominal heating studies cond ucted with 80 kg female and 65 kg male pigs. Temperature-time profiles over the respective heating periods were obtained in anterior and pos terior superficial tissue and in selected abdominal organs. At selecte d times during heating, spatial redistribution of elevated temperature s was effected through adjustment of power settings for one or more of the three electrodes, i.e. through manipulation of the specific absor ption rate (SAR) in-vivo.