FBA-Vey Low Number of Fixels


Hi All,

I have processed muti-tissue FBA analysis (http://userdocs.mrtrix.org/en/latest/fixel_based_analysis/mt_fibre_density_cross-section.html) on a multi-shell DTI data. Everything worked pretty well but I got a very low number of fixels (80170). Also, I didn’t get a group difference even with extremely very low significance (p=0.5). Could you please help me with that?