Investigation of temperature rise in tissue - mimicking material induced by a HIFU transducer

In this study, temperature distribution inside a tissue - mimicking material induced by a HIFU (High Intensity Focused Ultrasound) transducer was investigated with two different methods. In first method T-type thermocouple (TC) temperature sensors and in second method, infrared (IR) camera system was used for determining the temperature distribution on the tissue-mimicking material (TMM). Temperature increase and distribution in the TMM have been characterized during the ultrasonic power application. Temperature measurements were actualized inside a TMM which has characteristics very similar to human liver tissue. Temperature rise has been characterized for different input ultrasonic powers and durations. Two different temperature measuring tools were compared and consistency between these methods was presented.