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. Author manuscript; available in PMC: 2016 Mar 20.
Published in final edited form as: Proc SPIE Int Soc Opt Eng. 2015 Mar 20;9413:941309. doi: 10.1117/12.2081491

Figure 4.

Figure 4

Top row fODFs and zoomed in tracts at b=1000 s/mm2, and separately, in a 5-shell ‘ground truth’ HYDI, illustrated in the cingulum of the mouse brain across 64 voxel (8×8). 2nd and 3rd rows: 8×8 matrix showing angular error (0°–53°) between local maxima of fiber peaks (fODFs) in the cingulum at voxel level for target images and the ‘ground truth’ image. Angular error is highest at b=1000 s/mm2 and decreases as shells are combined (p=0.02). The agreement with ground truth increases from the left to the right in the 2nd and 3rd rows. Angular deviation as high as 53° can occur when the anterior-to-posterior fibers of the cingulum are confused as being part of the corpus callosum that have a left-to-right directionality.