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Characteristic Changes Observation of N-isopropylacrylamide Phantom by Repeated Ultrasound Irradiation

초음파 반복 조사에 따른 NIPAM 팬텀의 특성 변화 관찰

  • Received : 2015.10.16
  • Accepted : 2015.12.25
  • Published : 2015.12.31

Abstract

In this study, we evaluated the thermal denaturation characteristics of reusable NIPAM tissue mimicking (TM) Phantom by measuring the thermal sensitivity. And the changes of acoustic characteristic and thermal denaturation shape in NIPAM TM phantom according to the number of re-use time and re-use period were observed. With the result, as the sonication time is increased, the sound velocity of NIPAM phantom was decreased by 100 m/s and the attenuation was increased slightly. However, the changes according to the re-use period was not observed. In the thermal denaturation shape and size observation by ultrasound sonicaton, the remarkable changes have not been confirmed. With the result of this study, NIPAM Phantom was considered appropriate to evaluate and predict the effect of therapeutic ultrasound by in repeated sonication test.

Keywords

N-isopropylacrylamide;therapeutic ultrasound;repeated ultrasound sonication;tissue mimic phantom;thermal sensitivity

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Acknowledgement

Supported by : National Research Foundation of Korea (NRF)