Hi Fabrice,

what would converting a thickness file (which has one value for each point on the surface) to a volume mean? Would you want just a strand of voxels with the thickness values at the gray/white boundary? At the pial surface? Would you want the ribbon filled with the same value? If you want the distance to either surface you can use mris_distance_transform.

cheers Bruce

On Wed, 18 Sep 2013, Fabrice Crivello wrote:

Dear Freesurfer users,

I am searching how to use the mri_surf2vol command in order to convert a "lh.thickness" file into a 3D .nii file (in the original subject space). Many Thanks,

Fabrice