Pseudoendoleak - Residual intrasaccular contrast after endovascular stent-graft repair

被引:0
作者
Lee, WA [1 ]
Rubin, GD [1 ]
Johnson, BL [1 ]
Arko, F [1 ]
Fogarty, TJ [1 ]
Zarins, CK [1 ]
机构
[1] Stanford Univ, Div Vasc Surg, Stanford, CA 94305 USA
关键词
abdominal aortic aneurysm; endoleak; computed tomography; duplex ultrasound; contrast medium;
D O I
10.1583/1545-1550(2002)009<0119:PRICAE>2.0.CO;2
中图分类号
R61 [外科手术学];
学科分类号
摘要
Purpose: To present a unique demonstration of postoperative perigraft contrast masquerading as an endoleak following endovascular abdominal aortic aneurysm (AAA) repair. Case Report., A 66-year-old man underwent endovascular stent-graft repair of a 4.6-cm infrarenal AAA. The procedure was uncomplicated, and intraoperative completion angiography demonstrated good proximal and distal fixation of the stent-graft without an endoleak. A spiral computed tomographic (CT) angiogram obtained on postoperative day 2 revealed a large amount of extrastent contrast along the posterior aspect of the aneurysm sac. This defect had the appearance of an endoleak, but it was also present on the non-contrast images. A color-flow duplex examination performed on the same day showed a widely patent stent-graft with no evidence of extrastent flow. Conclusions: Contrast trapped in the aneurysm sac during endovascular aneurysm repair may be misinterpreted as an endoleak on postprocedural CT scans. "Pseudoendoleaks" can be distinguished from true endoleaks by examination of prebolus, noncontrast CT images, as well as by duplex ultrasound scanning.
引用
收藏
页码:119 / 123
页数:5
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