| Item type: | Article | ||||
|---|---|---|---|---|---|
| Journal or Publication Title: | Radiology | ||||
| Publisher: | RADIOLOGICAL SOC NORTH AMERICA | ||||
| Place of Publication: | OAK BROOK | ||||
| Volume: | 274 | ||||
| Number of Issue or Book Chapter: | 3 | ||||
| Page Range: | pp. 906-916 | ||||
| Date: | 2015 | ||||
| Institutions: | Medicine > Lehrstuhl für Chirurgie Medicine > Lehrstuhl für Röntgendiagnostik Medicine > Zentren des Universitätsklinikums Regensburg > Zentrum für Klinische Studien | ||||
| Identification Number: |
| ||||
| Keywords: | FOLLOW-UP; VOLUME MEASUREMENTS; DIAMETER; INTERVENTION; OUTCOMES; EVAR; ONYX; | ||||
| Dewey Decimal Classification: | 600 Technology > 610 Medical sciences Medicine | ||||
| Status: | Published | ||||
| Refereed: | Yes, this version has been refereed | ||||
| Created at the University of Regensburg: | Yes | ||||
| Item ID: | 60631 |
Web of ScienceAbstract
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; ...
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
Metadata last modified: 19 Dec 2024 07:48
Altmetric