Hi Michael,
It seems like your data have been analysed with the old TBSS version.
In the old TBSS version (TBSS 1.1, FSL 4.0), the FA data were scaled to be
between 0-10000 in tbss_1_preproc, whereas there is no scaling (FA is
between 0-1) in the new TBSS version (1.2, FSL 4.1).
Best wishes
Kathrine
> Hi fsl experts, I was just following the tbss instructions and wanted
> to check after <tbss_3_postreg -T> if the threshold of 0.2 is good.
> <fslview all_FA -b 0,0.8 mean_FA_skeleton -b 0.2,0.8 -l Green>
>
> I played around with the threshold in mean_FA_skeleton and nothing
> really changend and then I realized that the values range in the
> thousands.
>
> fslstats mean_FA_skeleton.nii.gz -R
> 0.000000 8676.000000
> fslstats mean_FA_skeleton.nii.gz -r
> 2038.859985 7617.527832
>
> Any ideas?
>
> Michael
>
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