肺内孤立结节的CT血管集束征及其鉴别诊断

The value of CT-vessel convergence sign in differential diagnosis of SPN

目的:利用多层螺旋CT的优势,对肺内孤立结节血管集束征的血管构成和形态进行分析,以进一步提高孤立结节定性诊断的准确性。方法:肺内孤立结节病例81例,利用多层CT及MPR重建,确定血管集束征存在及其构成,并与病理、临床相对照。结果:肺癌、肺结核血管集束征阳性率较高,炎症以Ⅰ型血管集束征为主,肺癌以Ⅲ型为主。结论:各类肺内孤立结节血管集束征的阳性率及血管构成有一定的规律性,识别这一征象对病变的定性诊断有重要意义。

Objective： To evaluate vessel convergence sign from vessel makeup and morphology using MSCT and to find the characters of SPN in different diseases for improving the diagnostic accuracy of SPN. Methods： Eighty-one patients were included according to SPN standard, determine the composition vessel convergence sign by MSCT axal image and MPR ,then compare with pathology. Results： Lung cancer and tuberculosis had higher positive rate, for type Ⅰ inflammation had higher rate, for type Ⅲ , cancer had higher rate. Conclusion： There are some special character of vessel convergence sign in differnet SPN lesion as positive rate and vessel composition. These characters can help to differntial diagnosis in SPN.