offense of segregation by location

Aim: To determine the accuracy of computed tomography(CT) signs in assessment of direct mediastinal invasion by primary bronchogenic carcinoma.

结论:CT检查对于发现支气管肺癌纵隔侵犯有重要价值,改进CT扫描技术并制定特定判断标准有助于提高CT对支气管肺癌纵隔侵犯的阳性预测值。