血管集束征在CT诊断周围型小肺癌中的价值

The Value of Vessel Convergence Sign in CT Diagnosis of Small Peripheral Lung Cancers

目的:探讨肺血管集束征在小肺癌CT诊断中的价值。方法:对2004年3月至2006年3月间本院45例3 cm内的孤立性肺结节行螺旋CT扫描,观察肺结节与周围血管的关系。结果:血管集束征在周围型小肺癌中的出现率为72.4%(21/29),在良性病灶的出现率为18.6%(3/16)。良恶性病灶之间差异有非常显著性(χ2=9.87,P<0.005)。结论:肺血管集束征在小肺癌CT诊断中具有重要的参考价值。

Objective：To explore the value of the vessel convergence sign on CT scans for the diagnosis of small lung cancer. Methods ： 45 cases of small peripheral pulmonary nodules measured less than 3 cm, admitted to our hospital between March 2004 and March 2006, were evaluated with spiral CT scanning for the correlation between pulmonary nodules and vessel convergence sign. Results： The vessel convergence sign was found in 21 of 29 （72.4 % ） peripheral lung cancers and in 3 of 16 （ 18.6 % ） benign nodules. Significant difference was shown between malignancy and benign lesions （χ^2 = 9. 87, P 〈 0. 005 ）. Conclusion ： The vessel convergence sign appears to be valuable for the diagnosis of small lung cancer on CT.