Fig. 2
From: In vivo cardiovascular magnetic resonance of 2D vessel wall diffusion anisotropy in carotid arteries
Color coded vector images of the principle diffusion tensor direction and FA map. a Representative RG vector image illustrating the diffusion tensor directions as 2D ellipsoids. b Corresponding FA map with superimposed direction of the principle DTI vectors by red lines. c RGB vector image based on the 3D-DTI rs-EPI with 30 gradient directions representing diffusion tensor directions as 3D ellipsoids of a porcine aorta. d RG vector image based on the 2D-DTI rs-EPI with 18 gradient directions representing diffusion tensor directions as 2D ellipsoids of the same porcine aorta