Angiographic and CT diagnosis of aortic aneurysms

18 patients with aortic aneurysm were examined by angiography and computed tomography. Dissection was found in 10 Patients. It was not possible to accurately determine the proximal and distal extension of the aneurysms via any of the two methods. Vascular sclerosis and thrombi were more clearly visualised in the computer tomogram, but it was not always possible to accurately visualize vascular ramifications. In spite of the fact that the informative value of the computer tomogram is not always satisfactory if effected preoperatively, especially with dissecting aneurysms, a CT should be done as far as possible before angiography. (orig.)