Dependence of OR tractography results on the number of diffusion directions in a single subject.

<p>Tractography was performed on a single subject from the human connectome project (<a href="http://www.humanconnectomeproject.org" target="_blank">www.humanconnectomeproject.org</a>). The CSD tractography was performed on pre-processed 90 direction diffusion data, with a b-value of 3000 and 1.25mm isotropic voxel resolution, subsampled between 20 and 88 directions. The sensitivity, specificity and similarity indices were all computed using the fully sampled DWI data as the gold standard. All MLA-TP distances were within one standard deviation (dashed lines) of the median dissection distance (solid line).