Investigation of the temperature effect of ultrasound used in cancer therapy

Abstract

In present study, temperature rise in a tissue — mimicking material induced by a HIFU (High Intensity Focused Ultrasound) transducer was examined with two different methods. In order to determine the temperature rise inside and distribution on the surface of a Tissue-Mimicking Material (TMM), T-type thermocouple (TC) temperature sensors and infrared (IR) camera system was used in the first and second method respectively. During the ultrasonic power application, temperature increase and distribution in the TMM have been represented. Temperature measurements were realized inside a TMM which has characteristics very similar to human liver tissue. Temperature rise has been measured for different input ultrasonic powers and durations. Two different temperature measuring tools were compared and consistency between these methods was presented.