CAJ | 학술논문

目的探讨乳腺癌放疗后放射性肺炎早期的高分辨率CT（HRCT）征象及其临床应用价值。方法回顾分析31例乳腺癌患者放疗前后的肺部CT及HRCT征象。结果18例患者在早期胸部HRCT出现影像学改变，表现为照射野内毛玻璃样改变，支气管血管束增粗，小叶间隔增厚目的，斑片状致密影，其内见支气管充气征；在9例同时出现毛玻璃样改变、支气管血管束增粗及小叶间隔增厚3种征象的患者中，有7例3月后发展为放射性肺炎，占78%（7/9）。结论照射野毛玻璃样改变、支气管血管束增粗及小叶间隔增厚是早期放射性肺炎的重要HRCT征象，患者早期同时出现这几种HRCT表现，往往提示放射性肺炎的发生。
목적탐토유선암방료후방사성폐염조기적고분변솔CT（HRCT）정상급기림상응용개치。방법회고분석31례유선암환자방료전후적폐부CT급HRCT정상。결과18례환자재조기흉부HRCT출현영상학개변，표현위조사야내모파리양개변，지기관혈관속증조，소협간격증후목적，반편상치밀영，기내견지기관충기정；재9례동시출현모파리양개변、지기관혈관속증조급소협간격증후3충정상적환자중，유7례3월후발전위방사성폐염，점78%（7/9）。결론조사야모파리양개변、지기관혈관속증조급소협간격증후시조기방사성폐염적중요HRCT정상，환자조기동시출현저궤충HRCT표현，왕왕제시방사성폐염적발생。
Objective To assess the high-resolution computed tomography(HRCT)features of radiation-induced pneumonia in patients receiving radiotherapy for breast cancer.Methods HRCT of 31 patients with radiation-induced pneumonia after radiation treatment of breast cancer was analyzed retrospectively.Results HRCT showed ground-glass opacities,enlargement of bronchovascular bundles,and thickening of the interlobular septa in the radiation field of 9 patients,of whom 7 developed radiation pneumonitis 3 months later.Conclusions Ground-glass opacity,enlargement of bronchovascular bundles and thickening of interlobular septa are important early HRCT features indicating radiation-induced pneumonia.