Use the surface-based stats file (?h.aparc.stats) for cortical structures, use aseg.stats for subcortical gray matter, and wmparc.stats for the white matter.
dogu
Yunjo Lee wrote:
Hi Doug again,
I have a quick question related to my previous one. Then which one is more accurate, for example, mri_segstats from aparc+aseg.mgz or aseg.stats, rh.aparc.stats? I got a bit confused by which one you meant by "stats files".
Thanks, Yunjo
Doug Greve wrote:
The stats files are computed with partial volume correction.
doug
On Thu, 15 Jul 2010, Yunjo Lee wrote:
Hi,
I am a new user of FreeSurfer and trying to figure out gray matter segmentation. A volume that I extracted from aparc+aseg.mgz using mri_segstats did not match the volume reported in /stats/ text files (for example, aseg.stats, rh.aparc.stats). Even without specifying a mask in mri_segstats, there's always a discrepancy of 100 voxels or something. Where do the numbers in /stats/ files come from? Aren't they from aparc+aseg.mgz?
Thanks!
Yunjo
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