尘肺的CT检查与X线胸片比较研究

目的对比分析胸部CT及X线胸片对尘肺的诊断价值。方法回顾性分析52例尘肺的胸部CT及X线胸片资料,男47例,女5例,平均年龄59岁。结果52例中有28例胸部CT表现有两肺弥漫性小阴影(直径<10mm的阴影),胸部X线发现19例有小阴影。大阴影(直径>10mm的阴影)CT显示13例,X线胸片显示9例。合并症CT显示20例,其中肺炎5例,肺结核3例,肺癌2例,气胸6例,肺气肿4例。X线胸片显示10例,其中肺炎1例,肺结核1例,气胸6例,肺气肿2例。结论在单纯的尘肺诊断中,CT并不优于X线胸片,但对大阴影、胸膜改变及合并症的检出率明显高于X线胸片,并可弥补X线胸片的不足。

The Comparative Study of CT and Radiography in Pneumoconiosis

Objective To investigate the diagnostic value comparatively of CT and radiography in pneumoconiosis.Methods Chest radiographic and CT images were analyzed retrospectively in 52 cases with pneumoconiosis.Results The pulmonary disseminated small shadowes (diameter <10 mm) were showed by CT in 28 cases,by radiography in 19 cases.For the big shadowes(diameter >10 mm),13 cases and 9 cases were detected by CT and radiography respectively.20 cases (5 pneumonia,3 pulmonary tuberculosis,1 lung cancer,6 pneumothorax,4 pulmonary emphysema) and 10 cases (1 pneumonia,1 pulmonary tuberculosis,6 pneumothorax,2 pulmonary emphysema) with complications were showed by CT and radiography respectively.Conclusion CT is not superior to radiography in diagnosis of simple pneumoconiosis,but CT is superior to radiography detecting the big shadow of lung and complications,and it can help radiologists to avoid mistakes.