대한방사선기술학회지:방사선기술과학 (Journal of radiological science and technology)
- 제25권2호
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- Pages.47-55
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- 2002
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- 2288-3509(pISSN)
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- 2384-1168(eISSN)
맘모그래피의 화질과 평균유선조직선량에 관한 검토
A Study on the Image Quality of Mammography and the Average Glandular Dose
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Lee, In-Ja
(Dept. of Radiological Technology Dong Nam College) ;
- Kim, Hak-Sung (Dept. of Radiological Technology Dong Nam College) ;
- Kim, Sung-Soo (Dept. of Radiological Technology Shin Gu College) ;
- Huh, Joon (Institute of Radiological Technology Listem Co., LTD)
- 발행 : 2002.12.31
초록
유방촬영에 대한 화질과 평균유선조직선량에 대하여 실험한 결과 반가층은 장치마다 큰 차이를 나타내지 않았으며, 자동노출기구를 사용할 경우 정확성에 문제가 있으므로 확인이 필요하다. 유방촬영에 사용되는 자동현상기 또한 꼭 관리가 필요하며, 유방촬영 시 사용되는 증감지/필름에 따라서 팬톰 촬영 식별능에 많은 영향을 받고 있으므로 선택 시 신중을 기해야 한다. 유방두께 4.2 cm에 대한 평균유선조직 선량은 관전압에 따라 달라지며, ACR기준인 3.0 mGy보다 훨씬 적은
We came to the following conclusion as the results of experiment on the image quality of mammography and the average glandular dose using 4 apparatuses at 3 hospitals in Seoul. 1. Whereas the measurement of half value layer showed no differences among the apparatuses, the measurement by an attenuation curve method showed some differences by 5.9%. There were 9.1% differences in the measurement by aluminum conversion method. 2. The basic density of an automatic exposure control unit must be D = 1.40, but there was no automatic exposure unit adjusted precisely at any hospitals. The unit at the B hospital exceeded the allowable limit by