Radiation Oncology Journal

The Korean Society for Radiation Oncology (대한방사선종양학회)
권호 표지

Thermometry in Hyperthermia induced by Ultrasound A Phantom study

초음파를 이용한 온열료법시 온도분포에 관한 연구

  • Park, Charn-Il (Department of Radiology, College of Medicine, Seoul National University) ;
  • Koh, Kyeong-Whan (Department of Radiology, College of Medicine, Seoul National University) ;
  • Ha, Sung-Whan (Department of Radiology, College of Medicine, Seoul National University)
  • 박찬일 (서울대학교 의과대학 방사선과학교실) ;
  • 고경환 (서울대학교 의과대학 방사선과학교실) ;
  • 하성환 (서울대학교 의과대학 방사선과학교실)
  • Published : 1984.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

Temperature homogeniety and stationary temperature is the most important thermometric considerations for the clinical use of hyperthermia. A thermal mapping was done in a phantom with thermocouple during hyperthermia which was induced by 1.0MHz,$0.7\~0.8watts/cm^2$ ultrasound and unfocused 2.5cm-diameter transducer. The results were as follows 1. Effective heating range$(42.5^{|circ}C\pm0.5^{\circ}C)$ were obtained 3cm in width and 4cm in depth from surface of phantom and temperature distribution was relatively uniform. 2. There was little heating effect more than 2cm away from transducer axis and more than 5cm in depth. 3. There was hot spots(more than $43^{\circ}C$) in $2.0\pm0.5cm$ depth from transducer along tranducer axis.

Keywords