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01-01-2013 | Original article

Clinical significance of endoleaks characterized by computed tomography during aortography performed immediately after endovascular abdominal aortic aneurysm repair: prediction of persistent endoleak

Authors: Motoki Nakai, Hirotatsu Sato, Morio Sato, Yuko Tanba, Yasutaka Noda, Akira Ikoma, Hiroki Sanda, Kohei Nakata, Hiroki Minamiguchi, Nobuyuki Kawai, Tetsuo Sonomura, Kazushi Kishi, Yosiharu Nishimura, Yoshitaka Okamura

Published in: Japanese Journal of Radiology | Issue 1/2013

Abstract

Purpose

This study aimed to predict the persistence of endoleaks (ELs) using patterns and volumes evaluated by computed tomography during aortography (CTDA) performed immediately after endovascular abdominal aortic aneurysm repair (EVAR).

Materials and methods

CTDA immediately after EVAR and at the 6-month follow-up CT were performed in 52 patients. ELs were classified as localized-type pattern (LTP; <180° around the center of the aneurysmal lumen) or circumferential-type pattern (CTP; >180°). The proportion of EL volume in the aneurysmal sac, excluding mural thrombus, was classified as grade A (≤5 %), B (5–10 %), or C (≥10 %). The 6-month follow-up residual rates were evaluated, and volume ratios (follow-up CT aneurysmal volume including mural thrombus/CTDA aneurysmal volume) were calculated.

Results

The residual rate (5.3 %) and mean volume ratio (83.9 %) of ELs with LTP were significantly lower than those of ELs with CTP (72.2 and 99.3 %, respectively); there was no significant difference in residual rate or mean volume ratio among EL grades (A: 17.6, 88.1 %; B: 55.6, 89.7 %; C: 54.5, 97.8 %).

Conclusion

ELs with LTP generally disappear over time after EVAR, with a concomitant reduction in aneurysm volume, whereas those with CTP persist, indicating that patients with EL with a CTP should be followed up carefully.

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Title: Clinical significance of endoleaks characterized by computed tomography during aortography performed immediately after endovascular abdominal aortic aneurysm repair: prediction of persistent endoleak
Authors: Motoki Nakai
Hirotatsu Sato
Morio Sato
Yuko Tanba
Yasutaka Noda
Akira Ikoma
Hiroki Sanda
Kohei Nakata
Hiroki Minamiguchi
Nobuyuki Kawai
Tetsuo Sonomura
Kazushi Kishi
Yosiharu Nishimura
Yoshitaka Okamura
Publication date: 01-01-2013
Publisher: Springer Japan
Published in: Japanese Journal of Radiology / Issue 1/2013
Print ISSN: 1867-1071
Electronic ISSN: 1867-108X
DOI: https://doi.org/10.1007/s11604-012-0137-9

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Clinical significance of endoleaks characterized by computed tomography during aortography performed immediately after endovascular abdominal aortic aneurysm repair: prediction of persistent endoleak

Abstract

Purpose

Materials and methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Materials and methods

Results

Conclusion

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