Follow-up of aneurysm neck diameter after endovascular repair of abdominal aortic aneurysms.

We assessed aneurysm neck diameter change after endovascular abdominal aortic aneurysm repair (EVAR) and its relationship to stent-graft diameter. Ninety-eight patients with abdominal aortic aneurysm who underwent EVAR were studied with multislice computed tomography following a standardized protocol. A preoperative study and immediate postoperative, 6-month, 1-year, and 2-year follow-up studies were performed.