Hi,

I downloaded FreeSurfer development version built on Sep 20. Then I ran the "trac-all" for the same set of DWI data four times. The volume and averaged DTI parameters of the fiber pathways, which found in the file ~/sub/dpath/*_PP_avg33_mni_flt/pathstats.overall.txt, are different for each run. The maximum differences can be upto +-90% for volume, +-10% for FA_avg. Any ideas for the inconsistency? Thanks.

XJ Kang

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