You may be able to use one of the paired diff options in mris_preproc.
Run it with --help. I also put some info on it below. QDEC has been
deprecated
--paired-diff
After concatenating all the inputs together, create a new output file by
computing paired differences, ie, Input1-Input2, Input3
External Email - Use Caution
Hello Freesurfer developers,
I am interested in analyzing PET data following a longitudinal design.
I have co-registered each PET image to the closest MRI in time processed
through the longitudinal stream.
I have sampled each co-registered PET image t
