Coulam C H, Rubin G D
Department of Radiology, S-072, Stanford University School of Medicine, Stanford, CA 94305-5105, USA.
Semin Roentgenol. 2001 Apr;36(2):148-64. doi: 10.1053/sroe.2001.23049.
Aneurysm and type B dissections account for most acute abdominal aortic abnormalities. The postsurgical aorta deserves special attention owing to the risk of complications. Most aortic abnormalities presenting acutely are emergencies that carry a high risk of mortality, and imaging plays a critical role in patient evaluation. Modern helical CT scanners provide excellent spatial resolution, are readily available, and allow for rapid imaging. For these reasons, helical CT angiography is the imaging modality of choice for initial evaluation of the acute aorta.
动脉瘤和B型主动脉夹层是大多数急性腹主动脉异常的原因。由于存在并发症风险，术后主动脉值得特别关注。大多数急性出现的主动脉异常都是具有高死亡风险的急症，影像学在患者评估中起着关键作用。现代螺旋CT扫描仪具有出色的空间分辨率，随时可用，并能进行快速成像。基于这些原因，螺旋CT血管造影是急性主动脉初始评估的首选成像方式。
