胸部疾病CT诊断的评价

Evaluation of Chest Diseases:CT vs Conventional Radiography

本文通过２６１例Ｘ线与ＣＴ诊断比较，评价胸部ＣＴ在胸部疾病诊断中的价值。结果是（１）弥漫病变ＣＴ诊断正确率为８７．５％，Ｘ线为５８．９％；（２）纵隔肿块ＣＴ诊断正确率为６０．１％，Ｘ线为４８．０％；（３）胸膜肿块ＣＴ诊断正确率为７５．０％，Ｘ线为６６．６％；（４）肺段肺叶阴影ＣＴ诊断正确率为７１．０％，Ｘ线为６８．４％；（５）球块阴影ＣＴ诊断正确率为７３．０％，Ｘ线为７１．０％；（６）斑片阴影ＣＴ诊断正确率为６６．０％，Ｘ线为７２．０％。分析材料表明在Ｘ线检查基础上根据胸部疾病基本影像，在普遍胸部ＣＴ检查上附加高分辨、薄层及增强扫描可提高一些ＣＴ征象发现率，同时可以使胸部疾病ＣＴ诊断水平超过本文报道的水平。

cases of chest lesions were comparatively evaluated with CT and conventional radiography in a retrospective study.The results showed that the diagnostic accuracies of CT and conventional radiography were87.5%,58.9%for diffuse lesions;601%,48.0% for mediastinal mass;75.0%,66.6% for pleural mass.71.0%,68.4%for shadow of pulmonary segment or lobe;73.0%,for pulmonary nodules and 66.0%、72.0% forpulmonary patch shadow.On the basic appearances of conventional radiography and CT,some more signs werefound by thinner collimation, enhancement CT and high resolution CT.The diagnostic accuracy of chest lesionswas also increased.