1. The ?h.white and ?h.pial are more accurate cortical representations than the aseg, so trust them if there is a mismatch in general.
2. Bits of skull can be around and not bother any of the processing as long as they aren't included in the pial surface, or mislabeled in the aseg as say cerebellum.
cheers, Bruce
On Wed, 18 Apr 2007, Binyam Nardos wrote:
Dear Freesurfers, I have a couple of questions ...
- the yellow borders that outline the white matter surface look fine when I'm looking at the brainseg and wm volumes, but they don't correctly outline cortical white matter when I'm looking at the aseg segmentation as an overlay on the aforementioned volumes. Is this something to worry about?
- I have some skull still remaining but is not included within the red pial borders, or areas that appear as white matter (on wm.mgz) and are not included within the yellow borders. Do I still need to make edits and remove these areas? I guess what I'm asking is that when stats like volumes and cortical thickness are calculated, are they calculated based on the red pial and yellow wm borders, in which case I wouldn't need to worry about removing those extra areas?
appreciate your help,
Binyam
Binyam Nardos Cognitive Rehabilitation Research Group Washington University School of Medicine Box # 8505 4444 Forest Park Blvd St. Louis, MO 63108 Office: (314) 454-7795 Fax: (314) 286-1601
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