LOWER-EXTREMITY SPIRAL CT ANGIOGRAPHY VERSUS CATHETER ANGIOGRAPHY

Both catheter and spiral computed tomography (CT) angiography of the l ower extremity vasculature were performed in six patients with clinica lly symptomatic peripheral vascular disease. Forty-eight arteries were studied and were independently evaluated for arterial stenoses and oc clusions. Compared with catheter arteriography, CT angiography correct ly depicted segmental occlusions and significant stenoses (>50%) in 26 of 28 arteries, yielding a sensitivity of 92.9%, a specificity of 96. 2%, and an overall accuracy of 95.5%.