Goodman P C, Jeffrey R B, Minagi H, Federle M P, Thomas A N
Cardiovasc Intervent Radiol. 1982;5(1):1-4. doi: 10.1007/BF02552093.
The aortic isthmus in adults has a variable appearance on thoracic aortograms. Its configuration may show a concavity, a straightening or slight convexity, or a discrete focal bulge. The latter finding represents a ductus diverticulum and, in review of 103 aortograms, was found present in 9% of patients. At times a prominent ductus diverticulum may resemble, and be mistaken for, a traumatic pseudoaneurysm of the aortic isthmus. A traumatic pseudoaneurysm may be distinguished from a ductus diverticulum on aortography by demonstration of an intimal flap and/or delayed clearance of contrast material on subtracted films. However, a ductus diverticulum will exhibit neither of these features.
成人主动脉峡部在胸部主动脉造影上表现各异。其形态可能呈凹陷、变直或轻度凸出，或有一个离散的局灶性隆起。后者表现为动脉导管憩室，在回顾103例主动脉造影时，发现9%的患者存在该情况。有时，一个明显的动脉导管憩室可能类似并被误诊为主动脉峡部的创伤性假性动脉瘤。在主动脉造影上，创伤性假性动脉瘤可通过显示内膜瓣和/或减影片上造影剂的延迟清除与动脉导管憩室相鉴别。然而，动脉导管憩室不会出现这两种特征。
