Hi Freesurfer team,
I have currently used version 5.3. for all my cortical parcellations of MRI data, but for PET images of those same subjects I used the gtmseg, mri_coregister, gtmpvc of the 6.0 beta version to get partial volume effect-corrected SUVR(standard uptake value ratios).
I am aware and heard that using different versions of Freesurfer is not recommended, and that any results from the developmental version should not be used for publication yet until it is officially released.
However I was wondering if in my case(with the commands I used above), this would not be such an issue.
Thanks a bunch,
Kristine