혈관협착팬텀의 제작 및 파워도플러의 영상 평가 (Manufacture of Flow Phantom with Stenosis and Imaging Evaluation of Power Doppler)

서지정보

· 발행기관 : 한국음향학회
· 수록지 정보 : 한국음향학회지 / 28권 / 8호 / 732 ~ 739페이지
· 저자명 : 박희영, 배종림, 김정구

초록

혈관협착의혈류정보와초음파진단장비의품질보증을위한혈관협착팬텀을자동주입기를이용하여제작하였다. 혈관협
착의진단에효율성이높은파워도플러를이용하여제작된혈관협착팬텀의유용성을조사하고, 초음파영상파라메타에
따른혈관협착의정도를 확인하였다. 혈관 협착팬텀은직경이각각8mm와2.4mm인 실리콘튜브로혈관협착이70%가
되도록제작하였으며, 인체조직과유사한음향특성을가지고있는젤라틴을이용하여실리콘튜브를감싸주었다. 평면형
탐촉자를이용하여측정하였을때정상혈관의직경은대체적으로감소되어측정되었으며, 협착혈관의직경은증가되어
측정되었다. 이득이 60% 이상, PRF가 3000Hz 이상, 필터가 max와 같은 급격한 변화를 제외하고는 각각의 파라메타에
크게영향을받지않았으며, 각도에는영향을받지않는것으로나타났다. 또한곡면형탐촉자를이용할경우이득, PRF,
필터, 각도등에영향을받는것으로나타났다. 본연구에서제작된자동주입기를이용한혈관협착팬텀은혈관협착진단의
품질보증에 유용하게 이용될 수 있을 것으로 기대된다.

영어초록

Flow phantom with stenosis was manufactured using an auto-injector to obtain angiostenotic flow information
and quality assurance (QA) for ultrasound diagnostic instrumentation. Effectiveness of manufactured flow
phantom with stenosis was investigated with power Doppler that was known to have diagnostic efficiency for
angiostenosis. The flow phantom with stenosis was manufactured to 70% stenosis with 8 mm and 2.4 mm silicon
tube, and silicone tube was covered with gelatin that has acoustic characteristics similar to soft tissue. When
the linear transducer was used for measurement, the estimated diameter of normal vessel was measured lower
than that of normal value, and the estimated diameter of stenosed vessel was measured higher than that of
normal value. The measured parameters were not affected except for the radical conditions such as gain of
60%, PRF of 3000 Hz, use of maximal filter or angle. In addition, when the convex transducer was used for
measurement, measurement parameters were affected by gain, PRF, filter, and angle. Therefore it is expected
that flow phantom with stenosis manufactured with an auto-injector will be utilized effectively for QA of
angiostenotic diagnosis

참고자료

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