15 patients with asymptomatic abdominal aortic aneurysms were evaluated with magnetic resonance imaging. The results were compaired to the sonographic findings in 12, the computed tomographic in 14 and the angiographic findings in 14 cases. 14 patients were operated and the diagnostic results were verified.The advantage of MRI in comparison with the other diagnostic methods is the visualization of an infrarenal segment on the coronal images, which can be anastomized with the vascular prothesis. The evidence of this segment is important to know for the vascular surgeon to plan the operation technique. The disadvantage of MRI ist that thrombotic material and arterosclerotic plaques were bad or not visualized. We try to estimate, which importance the MRI will get in further times in the preoperative diagnosis of abdominal aortic aneurysms.
In an attempt to optimize renal artery angiography we performed a CT - study. In 500 patients we determined the angle at which the arteries arise from the aorta and their course. Both renal arteries are in one plane, which is tilted 13 degrees ventrally on the right and 13 degrees dorsally on the left. More distally we found an angle of 35 degrees on the right and an angle of 29 degrees on the left in the dorsal direction. These findings were independent of age and sex of the patient.
Our study includes 15 posttransplant angiographies in 10 patients after liver transplantation and 3 cases with embolisation of the splenic artery because of a splenohepatic steal syndrome. The results of the angiographies are demonstrated and discussed. In cases with non-conclusive ultrasound or CT findings, angiography is the method of choice, if an arterial anastomotic complication or a chronical rejection is suspected.
Eleven patients after liver transplantation underwent 17 radiological interventions. Most of the cases were encapsulated fluid collections with episodes of fever. Radiological interventions make re-operations unnecessary in the majority of the cases. Our data are compared with those of other publications.
