Dear freesurfer experts,
I am having few questions about using freesurfer to finely (1000) parcel 
cortical structures consistently through subjects.
Since I cannot do GCs atlas on my own, the main idea is running recon_all for 
all of them and then register via mri_cvs_register all subjects to one; first 
question: shall I run bbregister before mri_cvs_register or the latter will 
take care of everything?

Once I have done that I do parcel the cortical stuff in the reference subject 
by using the command:

mris_make_face_parcellation ${SUBJECTS_DIR}/${subjid}/surf/lh.sphere  
${FREESURFER_HOME}/lib/bem/ic3.tri ${SUBJECTS_DIR}/${subjid}/label/lh.ic3.annot

I am not sure if that is correct...any hints will be very appreciated.

After that I am facing the problem of translating the lh.ic3.annot to the 
surface of each subject in his original space; running mri_cvs_register I get 
two resampled pial (lh.resample.pial and lh.dbg_surf.pial: I am not sure which 
one must be used and I am not sure what is the difference between them), but 
how can I get the parcellation back to the space of each suject? Mri_vol2vol 
seems to be working with volumes only whereas I would need to apply the m3z to 
surfaces. Shall I convert the annot to label and then to volumes so that I can 
apply the warping directly to the volumes or is there a shortcut way to do so?


I am little bit stack at the moment and I would really thankful for any help or 
suggestions.


Best Wishes

Antonio



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