Along-tract statistical extraction of quantitative diffusion metrics is crucial to unravel the variability of these parameters within white matter fiber bundles. Here for the first time we extracted NODDI-derived microstructural diffusion estimates along the main eloquent fiber tracts in fifteen healthy subjects and in a pilot cohort of glioma patients. We constructed a robust reference database of normative along-tract microstructural values to describe the anatomical variability of NODDI metrics within tracts and to localize and quantify differences in pathological cases. Normal and pathological conditions can be statistically compared between-groups, as well as at the single-subject level.
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