Nine patients with Leriche syndrome were examined with angiography, computed tomograhy and routine abdominal ultrasonography. The diagnosis was readily obtained with angiography and computed tomography, while ultrasonography conducted with a linear array real time scanner failed to establish essential features of the disorder. This is mainly because the thrombosed portion of the aorta does not produce any striking alteration of the echo structure of the vessel. Contrast computed tomography defines the abnormalities of the aorta in great detail.
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