Endovascular repair of abdominal aortic aneurysm: value of postoperative follow-up with helical CT.

MR Evaluation Ex Vivo and In Vivo of a Covered Stent-Graft for Abdominal Aortic Aneurysms: Ferromagnetism, Heating, Artifacts, and Velocity Mapping

“…The spiral CT studies were performed with a Toshiba Xpress/XS (Toshiba, Tokyo, Japan) imager, with a contrast agent, Omnipaque 300 mg I/ml (Nycomed, Oslo, Norway), in the in vivo studies. CT and CT angiography are the most commonly used methods for follow-up of endovascular treatment of AAA (4,7,13), and spiral CT is included in our follow-up after such treatment.…”

Duplex Ultrasound versus Computed Tomography for the Postoperative Follow-Up of Endovascular Abdominal Aortic Aneurysm Repair. Where Do We Stand Now?

“…The values of specificity and sensitivity of CT (92 and 90%, respectively) in the identification of endoleaks has been estimated to be higher than those of classical digital angiography (DSA) (63 and 77%). 72,73 However, it is stated that:…”

Clinical Practice Guidelines for Endovascular Abdominal Aortic Aneurysm Repair: Written by the Standards of Practice Committee for the Society of Interventional Radiology and Endorsed by the Cardiovascular and Interventional Radiological Society of Europe and the Canadian Interventional Radiology Association

“…High-resolution CT datasets allow reconstruction of thin transverse sections, multiplanar reformatted images, and highly accurate three-dimensional volumes. Additionally, CT angiography is able to detect endoleaks with a higher sensitivity than conventional angiography (123,124). Because endoleaks have variable flow rates and are thus detected at variable times after injection of contrast material, multiphasic CT angiography is essential; a typical protocol includes imaging before and after the administration of contrast agent in arterial and delayed phases.…”