Mueller-Wille, Rene and Schoetz, Sophie and Zeman, Florian and Uller, Wibke and Guentner, Oliver and Pfister, Karin and Kasprzak, Piotr and Stroszczynski, Christian and Wohlgemuth, Walter A. (2015) CT Features of Early Type II Endoleaks after Endovascular Repair of Abdominal Aortic Aneurysms Help Predict Aneurysm Sac Enlargement. RADIOLOGY, 274 (3). pp. 906-916. ISSN 0033-8419,
Full text not available from this repository. (Request a copy)Abstract
Purpose: To determine computed tomographic (CT) features of early type II endoleaks associated with aneurysm sac enlargement after endovascular aortic aneurysm repair (EVAR) of abdominal aortic aneurysm. Materials and Methods: Institutional review board approval was not required for this retrospective study. The authors reviewed imaging and clinical data from 56 patients (seven women, 49 men; mean age +/- standard deviation, 71 years +/- 7.9; age range, 52-85 years) with early type II endoleak who had undergone EVAR between December 2002 and December 2011 and who had been followed up with imaging and clinical evaluation for at least 6 months. The number and diameter of all feeding and/or draining arteries were measured, and endoleaks were classified according to their sources into simple inferior mesenteric artery (IMA), simple lumbar artery (LA), complex LA, and complex IMA-LA type II endoleaks. Volume and attenuation of the nidus were measured. Aneurysm enlargement was defined as an increase in the aneurysm volume of more than 5% during follow-up. Simple and multivariate logistic regression analyses were performed to identify independent clinical and imaging variables associated with aneurysm enlargement. Results: Twenty-three of the 56 patients (41%) showed aneurysm sac enlargement during follow-up (mean follow-up, 3.0 years +/- 2.0). With the multivariate model, the variables that showed the strongest indicators for aneurysm sac enlargement were complex IMA-LA type II endoleak (odds ratio [OR] = 10.29, P = .004) and the diameter of the largest feeding and/or draining artery (OR = 4.55, P = .013). Patients without complex IMA-LA type II endoleak in whom the largest feeding and/or draining artery was larger than 3.8 mm and patients with a complex IMA-LA type II endoleak in whom the largest feeding and/or draining artery was larger than 2.2 mm were at high risk for aneurysm sac enlargement. Conclusion: The strongest indicators for aneurysm sac enlargement are complex IMA-LA type II endoleak and the diameter of the largest feeding and/or draining artery. (C) RSNA, 2014
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | FOLLOW-UP; VOLUME MEASUREMENTS; DIAMETER; INTERVENTION; OUTCOMES; EVAR; ONYX; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Chirurgie Medicine > Lehrstuhl für Röntgendiagnostik Medicine > Zentren des Universitätsklinikums Regensburg > Zentrum für Klinische Studien |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 24 Jul 2019 09:10 |
| Last Modified: | 24 Jul 2019 09:10 |
| URI: | https://pred.uni-regensburg.de/id/eprint/5930 |
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