Fig. 1From: Inner diameters of the normal carotid arteries measured using three-dimensional digital subtraction catheter angiography: a retrospective analysisA Criteria for assessing the degree of carotid stenosis: NASCET criteria B Schematic diagram of the anatomical measurement part of carotid atery bifurcation C, D Anatomical structure of the carotid artery bifurcation displayed with three-dimensional (3D) DSABack to article page