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글리세롤 조직유사 팬텀을 이용한 초음파 중첩 조사에 따른 가열 특성 평가

Heating Characteristics Evaluation of Superposed Sonication Using Glycerol Tissue Mimic Phantom

  • 노시철 (한국국제대학교 방사선학과) ;
  • 강상식 (한국국제대학교 방사선학과) ;
  • 박지군 (한국국제대학교 방사선학과) ;
  • 김주영 (인제대학교 의용공학과) ;
  • 정봉재 (한국국제대학교 방사선학과)
  • Noh, Si-Cheol (Department of Radiological Science, International University of Korea) ;
  • Kang, Sang-Sik (Department of Radiological Science, International University of Korea) ;
  • Park, Ji-Koon (Department of Radiological Science, International University of Korea) ;
  • Kim, Ju-Young (Department of Biomedical Engineering, Inje University) ;
  • Jung, Bong-Jae (Department of Radiological Science, International University of Korea)
  • 투고 : 2015.10.23
  • 심사 : 2015.12.25
  • 발행 : 2015.12.31

초록

본 연구에서는 단일 초음파 조사와 두 개의 저강도 초음파의 중첩 조사 시 발생하는 가열 특성을 평가하였다. 비교결과 단일 조사 조건보다 중첩 조사에서 보다 우수한 온열 효과를 보였으며 최대 상승 온도도 120-150% 증가하는 것을 확인할 수 있었다. 초음파 조사에 의한 가열 개시 시간이 중첩 조사에서 짧아지며, 최대 가열 온도까지 소요되는 시간 역시 짧아짐을 확인할 수 있었다. 초음파 조사 강도가 커지면 매질의 표면 손상을 유발하는데, 저강도 중첩조사의 경우 표면의 손상없이 동일한 온도 상승 효과를 확인할 수 있었다. 본 연구의 결과를 통하여 초음파 치료 시 적용 강도를 줄일 수 있을 것으로 생각되었으며, 저강도 초음파를 사용함으로써 보다 안전하고 효율적인 초음파 치료가 가능할 것으로 판단된다.

In this study, we evaluated the heating characteristics of single sonication and superposed two low-intensity ultrasonic sonication. Compare the results, the superposed sonication was showed a superior thermal effect than single sonication. And the maximum temperature was increased as 120-150%. The starting time of temperature rising has been shortened in superposed sonication. In addition, the time up to the maximum temperature has been shortened, too. In generally, as the ultrasonic intensity is higher, the more surface damage is occurred. However, in the case of superposed sonication, the same thermal effect had be confirmed without surface damage. Through the results of the study, we thought that the superposed sonication will be able to reduce the intensity of the ultrasonic treatment. And, by using the low-intensity, the more safe and more effect therapy will be possible in therapeutic ultrasound application.

키워드

참고문헌

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