Hi Alex,
yes, all the surfaces of a hemisphere (except qsphere) have the same # of vertices/edges and faces. I think Doug has something that will sample the mask. mri_vol2label or something like that?
Bruce
On Wed, 22 Jun 2005, Fornito, Alexander wrote:
Hi again,
So many questions!!
Is there some sort of correspondence between vertices on the inner (wm) and outer (pial) surfaces? Ie., for every vertex on the inner surface, is there a point on the outer surface, and if so, does Freesurfer retain this information in any of the files?
Also, I have some binary masks that I have manually traced using another program that I would like to apply to the surfaces to get regional measures of thickness. The mask images are in analyze format. Is there any way that I can do this?
Thanks as always,
Alex
Alexander Fornito
M.psych (Clin. Neuro.)/PhD candidate
Melbourne Neuropsychiatry Centre and Department of Psychology
The University of Melbourne
alexander.fornito@wh.org.au