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Long-term follow-up of surgically excluded popliteal artery aneurysms with multi-slice CT angiography and Doppler ultrasound

Deglise, Sebastien ; Qanadli, Salah ; Rizzo, Elena ; Ducrey, Nicolas ; Doenz, Francesco ; Haller, Claude ; Denys, Alban ; Corpataux, Jean-Marc

In: European Radiology, 2006, vol. 16, no. 6, p. 1323-1330

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    Titre
    • Long-term follow-up of surgically excluded popliteal artery aneurysms with multi-slice CT angiography and Doppler ultrasound
    Auteur
    • Deglise, Sebastien. Department of Thoracic and Vascular Surgery, CHUV, Lausanne, Switzerland
    • Qanadli, Salah. Department of Radiology, University Hospital CHUV-University of Lausanne, 46 Rue du Bugnon, 1011, Lausanne, Switzerland
    • Rizzo, Elena. Department of Radiology, University Hospital CHUV-University of Lausanne, 46 Rue du Bugnon, 1011, Lausanne, Switzerland
    • Ducrey, Nicolas. Department of Angiology, CHUV, Lausanne, Switzerland
    • Doenz, Francesco. Department of Radiology, University Hospital CHUV-University of Lausanne, 46 Rue du Bugnon, 1011, Lausanne, Switzerland
    • Haller, Claude. Department of Thoracic and Vascular Surgery, CHUV, Lausanne, Switzerland
    • Denys, Alban. Department of Radiology, University Hospital CHUV-University of Lausanne, 46 Rue du Bugnon, 1011, Lausanne, Switzerland
    • Corpataux, Jean-Marc. Department of Thoracic and Vascular Surgery, CHUV, Lausanne, Switzerland
    Type de document
    • Postprint
    Identifiant OAI-PMH
    • oai:doc.rero.ch:318471
    Summary
    The purpose of this study was to evaluate the role of multi-slice computed tomography (MSCT) angiography in the follow-up of popliteal artery aneurysms (PAAs) that have been operated on. Aneurysm exclusion and progression, graft patency and graft-related complications were analyzed. Fourteen patients with 21 surgically excluded PAAs were evaluated with MSCT angiography with slice thickness of 1.25mm. The mean follow-up time was 67 months. MSCT demonstrated blood flow in six non-excluded PAAs (24%), with an average increase in the diameter of 21mm over time. Fifteen PAAs demonstrated no blood flow and revealed an average decrease of 7mm in diameter. The origin of this residual perfusion was demonstrated, and collaterals were involved in five of six non-excluded PAAs. In addition, MSCT demonstrated three graft stenoses. Furthermore, two occluded grafts were visualized. Twenty-four percent of the patients after surgical exclusion of PAAs revealed residual perfusion within the aneurysmal sac during follow-up, with a significant increase in the aneurysmal size with MSCT. Moreover, evaluation of the graft patency could also be done as could demonstration of anastomotic abnormalities. Thus, MSCT might be considered as a new tool to evaluate residual collateral feeding of popliteal aneurysmal sac and could be useful in identification and localization of feeding vessels