Figure 1
From: High resolution 3D diffusion MRI of carotid plaque on 3T
a (healthy subject): Diffusion weighted image (DWI) at low b-value (30 mm2/s), high b-value (300 mm2/s) and calculated ADC map. The vessel walls are clearly visible with blood suppression. 1b (atherosclerosis patient): DWI at high b-value compared with post-contrast T1 weighted image and pre-contrast T2 weighted image. Note that part of the plaque area (pointed by arrow) is hyper-intense in DWI signifying lower diffusion in that area. The same area is hypo-intense in the post-contrast T1 weighted image suggesting lipid-rich necrotic core.