Work

Distribution of temperature elevation caused by moving high-intensity focused ultrasound transducer

Year: 2015

Type: article

Abstract: Ultrasonic thermal treatment for dermatology has been developed using a small high-intensity focused ultrasound (HIFU) transducer. The transducer moves horizontally at a constant while it emits focused ultrasound because the treatment needs a high-temperature area in skin tissue over a wide range of depths. In this paper, a tissue-mimicking phantom made of carrageenan and a thermochromic film were adopted to examine the temperature distribution in the phantom noninvasively when the focused ultrasound was irradiated from the moving transducer. The dependence of the high-temperature area on the irradiated acoustic energy and on the movement interval of the HIFU was analyzed experimentally. The results will be useful in ensuring safety and estimating the remedial value of the treatment.

Source: Japanese Journal of Applied Physics

DOI: 10.7567/jjap.54.07hf13

Authors: Jungsoon Kim, Jihee Jung, Moojoon Kim, Kanglyeol Ha, Eunghwa Lee, Ilkwon Lee

Institutions: Tongmyong University, Pukyong National University

Language: English

Topic: Ultrasound and Hyperthermia Applications

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Good health and well-being

Open Access status: bronze

Funders: National Research Foundation, National Research Foundation of Korea, Ministry of Education, Science and Technology