Helical CT angiography of fenestrated stent grafting of abdominal aortic aneurysms
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Fenestrated stent grafts have been developed to treat patients with abdominal aortic aneurysms (AAA) associated with complicated aneurysm necks, such as short necks, severe angulated or poor quality necks (presence of calcification or thrombus). The technique is performed by creating an opening in the graft material so that the stent graft can be placed above the renal and other visceral branches without compromising blood perfusion to these vessels. In most situations, a supporting stent is inserted into the fenestrated vessel to provide fixation of the fenestrated vessel against stent grafts, as well as preserve patency of the vessel. Helical CT angiography (CTA) is the preferred imaging modality in both pre-operative planning and post-procedural follow-up of fenestrated repair of AAA. The main concerns of fenestrated stent grafting lie in the following two aspects: patency of the fenestrated vessels and position of the fenestrated stents in relation to the artery branches. In this article, we present the clinical applications of 2D and 3D visualizations in the follow-up of patients with AAA treated with fenestrated stent grafts, with aim of providing useful information to readers and increasing their knowledge of an increasingly used technique, fenestrated stent grafting in the treatment of AAA.
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Lawrence-Brown, Michael; Semmens, James; Hartley, D.; Allen, E. (2006)Purpose: To describe the outcomes of 58 patients with an aneurysm of the abdominal aorta who were treated with a fenestrated Zenith stent-graft in Perth (Western Australia) between October 1797 and September 2004. Methods: ...
Multislice CT Angiography of Fenestrated Endovascular Stent Grafting for Treating Abdominal Aortic Aneurysms: a Pictorial Review of the 2D/3D VisualizationsSun, Zhonghua; Mwipatayi, B.; Allen, Yvonne; Hartley, D.; Lawrence-Brown, Michael (2009)Fenestrated endovascular repair of abdominal aortic aneurysm has been developed to treat patients with short or complicated aneurysm necks. Fenestration involves creating an opening in the graft fabric to accommodate the ...
Sun, Zhonghua; Mwipatayi, B.; Allen, Yvonne; Hartley, D.; Lawrence-Brown, M. (2008)Objective: The purpose of this article is to provide 2D and 3D imaging appearances of fenestrated endovascular repair of abdominal aortic aneurysms (AAA) based on multislice CT angiography.Methods and Results: 14 patients ...