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目的:评价螺旋CT对非小细胞肺癌纵隔淋巴结分期的诊断价值。方法:对89例病理确诊NSCLC的患者进行CT纵隔淋巴结分期,并同淋巴结最后病理分期做一一对照。结果:CT对纵隔淋巴结转移总的敏感性为58.9%,特异性为70.0%,阳性预测值60.5%,阴性预测值68.6%,总的准确率为65.2%。CT对4R、5、6、7组淋巴结的准确率和特异性偏低。4R组和7组淋巴结的假阳性和假阴性较高。结论:CT是评价肺癌患者纵隔淋巴结转移的重要检查手段,能提供有效的纵隔淋巴结转移信息,但存在一定的假阳性和假阴性,应结合其他检查手段达到更精确的分期。
Objective: To evaluate the value of spiral CT in the diagnosis of mediastinal lymph node staging in non-small cell lung cancer. Methods: 89 cases of pathologically diagnosed NSCLC patients with CT mediastinal lymph node staging, and with the final pathological lymph nodes do one by one control. Results: The overall sensitivity of CT to mediastinal lymph node metastasis was 58.9%, the specificity was 70.0%, the positive predictive value was 60.5%, the negative predictive value was 68.6%, the overall accuracy was 65.2%. The accuracy and specificity of CT on 4R, 5,6,7 lymph nodes were low. False positives and false negatives were higher in 4R and 7 lymph nodes. Conclusion: CT is an important method to evaluate mediastinal lymph node metastasis in patients with lung cancer. It can provide effective information on mediastinal lymph node metastasis. However, there are some false positives and false negatives. CT should be combined with other methods to achieve more accurate staging.