“血管成像征”(angiogram sign)是一个新的肺部疾病CT诊断征象,1990年由Im等首次提出并将其作为肺泡细胞癌(bronchioloalveolar carcinoma, BAC)的特征表现。围绕“血管成像征”的形成因素和应用价值,国外多位学者进行了初步的研究探索,国内尚未见有文献报道,本文予以综述供参考。 一、CT“血管成像征”的基本概念和形 The angiogram sign is a new sign of CT diagnosis of lung disease. It was first proposed by Im et al. in 1990 as a characteristic feature of bronchioloalveolar carcinoma (BAC). Based on the formation factors and application value of the “angiographic imaging sign”, many foreign scholars have conducted preliminary research and exploration, and there are no reports in the country. This article is reviewed for reference. I. The basic concept and shape of CT “angiographic sign”