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. Author manuscript; available in PMC: 2016 Mar 1.
Published in final edited form as: NMR Biomed. 2015 Jan 16;28(3):353–366. doi: 10.1002/nbm.3258

Figure 2.

Figure 2

Dispersion of the principal eigenvector in the anisotropic region of the phantom for three different orientations (axial, coronal and oblique at a 45 degree angle with respect to the anisotropic fibers). While all nonlinear methods show a clear reduction of dispersion the effect is strongest for the proposed Model DTI approach. This behavior is consistent over the different orientations of the anisotropy. a) Color coded direction of the principal eigenvector for the three different orientations. b,c,d) Color coded deviations of the dispersion angle θ to the mean of all vectors in the ROI in degrees. e) Illustration of the dispersion of the eigenvectors in the ROIs.