Hi,
I am interested in extracting mean FA values for my individual subjects in
areas where I'm finding group differences using TBSS (for further analysis
to know what's going on in those blobs).
I drew an ROI on the skeleton over significant voxels and then tried 2 things:
- fslmeants -i all_FA skeletonized -m myROI
- and tbss_deproject myROI 2, followed by binarizing the outputs and using
those as masks in fslstats -M on the corresponding native space FA maps.
I found that although very similar, the values are off for a few subjects
when I compare the 2 methods...
Why would that be, and which set of values do you reckon I should use?
Thanks,
Cherif
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