It will certainly do cortex. We do not have a segmentation for subarachnoid spaces. Or are you just talking about extra cerebral CSF? We do have a segmentation for xCSF, but it is not the most beautiful thing in the world. For WM, the GTM will give you a PVC corrected value for the entire lh and rh cerebral WM (and cerebellar) segments. Is that all you need?
On 5/19/2020 11:36 AM, Barletta, Valeria wrote:
Dear Freesurfers, We need to analyze PET data after correcting for partial volume effect in the cortex, white matter and subarachnoid space. Is Freesurfer's partial volume correction working on all these areas or only the grey matter volume and surface? Is there a way to use gtmseg on the white matter and outside the pial surface?
Thanks a lot,
Valeria Barletta, MD Massachusetts General Hospital 149 13th Street, Charlestown MA 02129 (617)-724-8823
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