Dear Freesurfer crew,
We would like to use freesurfer to do the high resolution parcellation of gray matter reported in Hagmann et all. 2008.
This far I have used (looking also at previous postings on this matter)
mris_divide_parcellation pp0672 rh aparc.annot 150 rh.split150.annot (but this creates a parcellation of long strips per region, that is not fully suited for what we want).
mris_make_face_parcellation lh.inflated $FREESURFER_HOME/lib/bem/ic3.tri ./lh.ic3.annot
The make_face_parcellation looks very nice, but I have the following questions:
- How can I convert the .annot file to an actual .mgz volume segmentation. ( I have tried mri_annotation2label but I am not sure how the — segbase should be specified)
- Is there a way to match the aparc.annot labels to the ic3.annot parcellation (in the way that is done with mris_divide_parcellation)
( I have converted the both annot files to labels to look at the vertex numbers, but preferably I would like the eventual segmentation to contain label info’s per volume such as
in aparc+aseg.mgz)
Any help would be appreciated a lot.
Thanks,
Sara