Diagnostic evaluation of aortoiliac occlusive disease: When is a lesion significant?

Many methods, both invasive and noninvasive, are currently available for evaluation of the aortoiliac arterial system before and after percutaneous intervention. Optimal evaluation requires a combination of morphologic and functional information to localize, characterize, and assess the hemodynamic significance of any primary or residual arterial narrowing. In this article, we consider these methods, with an emphasis on the combination of contrast arteriography and intra-arterial pressure measurements in current management of aortoiliac disease. (C) 2000 by W.B. Saunders Company.