Earticle

초록

영어

National Cancer Screening Project and Korean Society of Breast Imaging recommend that breast cancer screening should be performed on those aged 40 and above. Nevertheless, this recommendation is usually ignored by a number of medical institutions. The purpose of this study is to emphasize the necessity of an age limitation in screening mammography. Ten institutions were randomly selected and telephone inquiries about patients' age limitation and internal guidelines were set up. The 3,214 women, who underwent screening mammography through ‘GE Senography 2000D’ in each hospital, were classified into five groups according to age(from 20s to 40s, at intervals of 5). And then, collected data was analyzed by a radiologist in accordance with ACR-BIRADS(American College of Radiology Breast Imaging Reporting and Data System), through which breast parenchymal density and the results of analysis were categorized in order to predict the sensitivity of mammography. Information about craniocaudal-view mammograms was automatically produced by use of GE Senography 2000D, and the average glandular dose was retrospectively analyzed through the program ‘Excel 2007.’ Two institutions did not set the age limitation. Other seven institutions internally allowed those who wanted to receive mammography regardless of age. Approximately 99% of those aged 20 to 29 were judged as having the dense breast. In those aged 35 to 39, breast parenchymal density tended to be lower, but the fatty breast to increase. In the case of ‘category-zero’ that does not need additional tests, the rate of ‘heterogeneously dense’ and ‘extremely dense’ reached to 83.1% and 15.1% respectively. Regarding dense breasts, there was no sufficient information for image reading. The glandular dose, applied to 3,214, was 1.47mGy on the average. In those aged 20 to 24 who are sensitive to radiation, the average glandular dose indicated 1.59mGy. Those aged 35 and above showed the lowest value, 1.43mGy. In those aged 35 to 39, the breast tended to change from denseness to fattiness. The average glandular dose was lowest in those aged 35 and above, which suggests that screening mammography should be periodically performed on those aged 35 and above in order that breast cancer may be early detected. On the other hand, in those aged less than 35, it is difficult to analyze mammograms due to the high density of breast parenchyma, and also retakes become frequent. In particular, subjects may be exposed to excessive doses. Accordingly, it should be substituted by breast self-examination or clinical breast examination. In case of need, it is advisable to perform ultrasonography.

목차

Abstract
Ⅰ. 서론
Ⅱ. 대상 및 방법
Ⅲ. 결과
1. 검진기관별 선별 유방촬영술에 대한 실태조사
2. 연령분포에 따른 유방 실질의 밀도(Breast Composition)
3. 유방 실질의 밀도에 따른 판독결과(Category)
4. 연령에 따른 평균 유선 선량(Average Glandular Dose; AGD)
Ⅳ. 고찰
Ⅴ. 결론
참고문헌

키워드

저자

• 윤하얀 [ Ha Yan Yun | 경희대학교 병원 영상의학과 ] Corresponding Author
• 이춘미 [ Choon Mi Lee | 경희대학교 병원 영상의학과 ]
• 안의경 [ Ui Kyeong Ahn | 경희대학교 병원 영상의학과 ]
• 김용환 [ Yong Hwan Kim | 경희대학교 병원 영상의학과 ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  대한디지털의료영상학회논문지 [Korean Journal of Digital Imaging in Medicine]

• 간기

  연3회

• pISSN

  1976-7641

• 수록기간

  1995~2025

• 십진분류

  KDC 510 DDC 610