Hi Alex,

you could try the topology correction, but we've never done it on a whole brain, so I have no idea how it will go. The two hemispheres together aren't going to be topologically spherical given the various commisures that connect them. Maybe you are better off simply merging the two topologicall correct surfaces at the end?

cheers, Bruce

On Fri, 7 May 2010, Alexander Opitz wrote:

Hi I would like to have a single white and pial surface for FEM based field calculation in the brain. I got these surfaces by tesselating from filled.mgz and ribbon.mgz by changing the values in the volume files. Unfortunately the surfaces don't have the acquired quality I need. They show some topological inaccuracies. Is there a way to use the freesurfer tools for topology fixing from starting with a single white matter surface?

Cheers Alex

-- Alexander Opitz Magnetic Resonance Center Max Planck Institue for Biological Cybernetics Tübingen _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer