Comparison of multi-contrast MR images of the carotid bulb and ICA from a CAD case and control. The upper panel of images is from a 56 year old white male with obstructive CAD and the lower panel is from a 52 year old white male control. All images were acquired with the same imaging matrix and have been magnified identically. In the CAD case, notice the smaller total vessel area and lumen area and increased wall thickness. Also present in the distal bulb of the CAD case is a low T2W signal consistent with lipid-rich necrotic core (arrowheads). In the ICA, calcification (hypo-intensity on all image weightings, arrows) is present in the CAD case. The control has a normal appearing artery without any imaging evidence of a thickened wall or the presence of plaque components. The asterisk in the T2W sequence indicates the lumen of either the carotid bulb or ICA.