Yes, based on the surfaces. We use Anderson Winkler's truncated pyramid method.
On 10/22/2020 5:55 AM, Ian Hardingham wrote: > External Email - Use Caution > > Hi Freesurfers, > > Is "total cortical gray matter volume" from aseg.stats calculated based > on the recon-all Surfaces? Or using a different method? > > I ask because I have been trying to calculate the grey matter volume > based on the area between the surfaces, and I have been getting > different results. > > Thanks, > > Ian > > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer