Hi, I'm trying to do surface-based cross-subject analysis on a quite large group of participants, but I've been having unexpected problems with holes remaining on the finished surface. They aren't detected with euler's number, but they create problem areas when I try to convert the surfaces to a standard mesh using another program (SUMA), and produce visible distortions on the sphere.reg. When I go back to freesurfer, I can find the holes by opening the sphere and zooming in on the problem area, and as far as I can tell it usually turns out to be a single voxel causing the problem, rather than a large area that should have been manually edited. Is there any automated way to correct these defects with freesurfer, since trying to manually fix them would be
extremely inefficient? Thanks.

-Aaron-

PS - I have some jpeg examples I can send if it would be helpful, but didn't attach them because of the list's limitation on email size.

Aaron L. Goldman

Post-Bacc IRTA

Genes, Cognition and Psychosis Program, NIMH

Building 10, Room 3C108

Phone: (301) 435-0944

Email: aarong@mail.nih.gov