A 7-yr experience with CT [computed tomography] scanning in the diagnosis and evaluation of abdomonal aortic aneurysms is reviewed. Of 226 patients with suspected abdominal aortic aneurysms who were studied, 12 were acute situations with possible rupture. In 15 no aortic pathology was seen. The diagnosis of an aneurysm regardless of its location was made in all instances and confirmed by other techniques and/or surgery. Location, size extension and presence of thrombus were well delineated. Aortic rupture or leakage was demonstrated when present. Unsuspecting involvement of the thoracic aorta, as well as the iliac arteries was shown. CT scanning is a technique that can safely, easily and accurately be used in the diagnosis of, follow-up and extension of aneurysmal disease regardless of its location or clinical situation and compares favorably with any other available technology.