【摘要】 目的　探讨血管集束征在CT 诊断周围型小肺癌中的价值。方法　对123 例直径≤3cm 的肺内孤立结节实施了薄层CT扫描。经手术病理和临床证实,其中周围型小肺癌83 例,良性病变40 例。91 例手术切除标本做成病理大切片与CT 进行对比研究,重点观察血管集束征的CT 及病理表现。结果　血管集束征在周围型小肺癌中的出现率为65-1 % (54/83) ,在良性病灶的出现率为20-0 % (8/40) 。良恶性病灶之间差异有非常显著性(χ2 = 22-75 ,P< 0-001) 。病理切片显示,集束的血管由扩张的小动脉或小静脉构成。结论　薄层CT 扫描能较好的显示病灶与血管的关系,血管集束征是诊断周围型小肺癌有价值的CT征象。更多还原

【Abstract】 Objective To evaluate blood vessel convergency (BVC) sign in the radiologic diagnosis of small peripheral lung cancer.Methods A prospective thin section CT pathology comparative study was done in 123 cases with solitary pulmonary nodules less than 3 cm in diameter including 83 peripheral lung cancera (adenocarcinoma 46, squamous cell carcinoma 21, bronchiolo alveolar cell carcinomas 7, undifferentiated carcinoma 6, adenosquamous carcinoma 3) and 40 benign lesions. They were pathologically and clinically confirmed. Serial transverse sections of the surgically resected specimens were examined microscopically in 91 cases. Attention was focused on the imaging and histological manifestations of BVC.Results BVC was found in 54(65.1%) peripheral lung cancers and in 8(20%) benign nodules (χ 2=22.75, P <0.001). Histologically, the convergent vessels were shown to be dilated arterioles or venules.Conclusion Blood vessel convergency can be regarded as a valuable sign for the diagnosis of small peripheral lung cancers.更多还原