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自1985年以来,对20例支气管肺癌病人术前除常规胸片外增加肺部CT检查。手术后对胸片、CT片及病理标本作对照分析。CT对病变定位优于常规胸片,但定性仍不理想。对纵隔淋巴结转移诊断准确性为65％(13/20),特异性85.7％(12/14),敏感性42.9％(3/7),阳性预测率40％(2/5),阴性预测率71.4％(10/14)。文中就胸部CT对肿瘤的定位、定性及临床应用价值方面进行讨论,并提出术前应用胸部CT检查的指征。
Since 1985, 20 cases of bronchial lung cancer patients have undergone CT scans in addition to conventional chest radiographs. After operation, chest X-ray films, CT films, and pathological specimens were analyzed and compared. CT is better than conventional chest radiographs for location of lesions, but the qualitative is still not ideal. The diagnostic accuracy for mediastinal lymph node metastasis was 65% (13/20), specificity 85.7% (12/14), sensitivity 42.9% (3/7), positive predictive rate 40% (2/5), negative predictive rate 71.4% (10/14). This article discusses the positioning, qualitative and clinical application value of chest CT on the tumor, and proposes the indication of preoperative chest CT examination.