主动脉旁线
Linea paraaortica
定义
主动脉旁线代表降胸主动脉外侧壁与左下叶接触所形成的界面。
正常影像学表现:
主动脉旁线表现为垂直的直线状界面,位于心影后方、左椎旁线外侧。在其下三分之一处,于第11胸椎水平靠近椎体,与左椎旁线重叠。
据报道,主动脉旁线可见于49%的后前位胸部X线片。
异常影像学表现:
轮廓异常可由多种累及肺和胸膜或中、后纵隔的病变所致,如淋巴结病、主动脉瘤、胃食管静脉曲张及肺部肿瘤。
參考資料
Gibbs JM, Chandrasekhar CA, Ferguson EC, Oldham SA. Lines and stripes: where did they go?--From conventional radiography to CT. Radiographics. 2007 Jan-Feb;27(1):33-48. doi: 10.1148/rg.271065073. PMID: 17234997.
Marano R, Liguori C, Savino G, Merlino B, Natale L, Bonomo L. Cardiac silhouette findings and mediastinal lines and stripes: radiograph and CT scan correlation. Chest. 2011 May;139(5):1186-1196. doi: 10.1378/chest.10-0660. PMID: 21540217.
Cardiac silhouette findings and mediastinal lines and stripes: X-ray and computed tomography correlation R. Marano, G. Savino, C. Liguori, A. Meduri, L. Natale, L. Bonomo; Rome/IT CR-222 poster ECR 2009
Mediastinal lines, stripes and interfaces on PA chest radiograph with CT correlations - N. Bystrická, H. Poláková, J. Sykora; Bratislava/SKC-0442ECR 2013 10.1594/ecr2013/C-04