There is nothing special to do in terms of longitudnial for PET. For the
MRI, you may want to use the longitudinal stream (depending upon how far
apart your time points are and whether you are expecting atrophy or
other changes), and then use the closest time point for the GTM and
sampling on
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Hi Freesurfer Team and Doug,
Is there any way to derive the gtmstats from Petsurfer within a longitudinal
design?
Could I get your take on the steps below?
1. Extract GTM stats from each PET time-point (registered to the closest
structural MRI in
