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논문 기본 정보

자료유형
학술저널
저자정보
김건일 (인제대학교병원 진단방사선과학교실)
저널정보
대한영상의학회 대한방사선의학회지 대한방사선의학회지 제34권 제3호
발행연도
1996.1
수록면
367 - 372 (6page)

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Purpose : To describe the characteristic HRCT appearance and to evaluate the usefulness of HRCT in patientswith welders' pneumoconiosis. Materials and Methods : Chest radiographs and high-resolution computedtomography(HRCT) of 45 shipyard welders(male : female=41 : 4 ; age : 36-58 years, mean 47.8) with an occupationalhistory of 4-25(mean 15.8) years were evaluated. Small rounded opacities in chest radiographs were read accordingto the ILO standard films(1980). HRCT were evaluated with micronodules, ground-glass attenuation, and otherfindings. Serial HRCT scans of seven welders taken 27 months apart were also evalauted. Two of these were stillworking in that job ; five had not worked as welders for 1-6(mean 4.4) years. Results : HRCT of welders'pneumoconiosis showed poorly marginated centrilobular branching or dot opacities of low attenuation(n=36, 80.0%)with variable profusion and extent and ground-glass attenuation(n=8, 17.8%). HRCT abnormalities were seen in 39welders(86.7%). It was able to depict micronodules(n=13) and/or ground-glass attenuation(n=3) in 15(68.2%) of 22welders with normal chest radiograph. Serial HRCT revealed no changes in parenchymal abnormalities(n=6) andslightly decreased profusion of micronodules(n=1). There was no HRCT abnormality suggesting gross paren- chymalfibrosis. Conclusion : HRCT is more sensitive than chest radiography in detecting parenchymal changes in welders'pneumoconiosis, with characteristic poorly-marginated centrilobular branching opacities or dots and ground- glassattenuation. These HRCT appearances may be helpful in differentiating welders' pneumoconiosis from other diffuselung diseases.

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