ISSN 1305-3825 | E-ISSN 1305-3612
Interventional Radiology - Original Article
Stent-graft applications in peripheral non-atherosclerotic arterial lesions
1 Department of Radiology, Hacettepe University School of Medicine, Ankara, Turkey  
2 From the Department of Radiology, Hacettepe University, School of Medicine, Ankara, Turkey  
3 From the Departments of Vascular Surgery, Hacettepe University School of Medicine, Ankara, Turkey  
4 Department of Cardiovascular Surgery, Hacettepe University School of Medicine, Ankara, Turkey  
5 From the Departments of Radiology, Başkent University School of Medicine, Ankara, Turkey  
6 Department of Radiology, Hacettepe University School of Medicine, Ankara, Turkey  
Diagn Interv Radiol 2008; 14: 40-50

Key Words: stent-graft • aneurysm • vascular injury • computed tomography angiography
Abstract

PURPOSE
To retrospectively evaluate peripheral arterial lesions treated with stent-grafts in various territories and to identify the role of computed tomography angiography (CTA), both in diagnosis and follow-up.

 

MATERIALS AND METHODS
The study included 19 patients (11 male, 8 female) aged between 24 and 85 years. In all, 24 stent-grafts were used to seal an extravasation in 3 patients, a pseudoaneurysm/aneurysm in 12 patients, and an arteriovenous fistula in 4 patients. Self-expandable and balloon-expandable stent-grafts were used, all of which were covered with polytetrafluoroethylene material. Iatrogenic etiologies were responsible in 11 of the patients. In total, 5 superficial femoral, 2 deep femoral, 4 external iliac, 3 common iliac, 1 common carotid, 1 internal carotid, 1 subclavian, 1 renal artery, and 1 thyrocervical trunk lesion were treated.

 

RESULTS
The technical success rate was 100%, with no periprocedural complications. Mean follow-up was 18 months (range: 1–72 months). CTA was performed in 10 patients for diagnosis and in 7 patients for follow- up. There was no stent migration, but 1 stent crush. The total vessel occlusion rate was 16.6%, all diagnosed using CTA.

 

CONCLUSION
Stent-graft applications offer quick, single-step treatment, with few procedural complications. However, long-term durability remains a major concern. CTA is a very valuable tool, both for diagnosis and follow- up. Pseudoaneurysms and extravasations can be demonstrated successfully, as well as incomplete arteriovenous fistula closure, and patent or occluded stent-grafts.

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