Hi Douglas,

Thank you very much for your answer. I tried the command you suggested and it did not seem to transfer the edits, so I added the flag -keep_mask_deletion_edits and that seems to work. Would you mind confirming that the final command mri_mask -keep_mask_deletion_edits brainmask.mgz norm.mgz brainmask.mgz is safe to run to transfer the edits (i.e., voxel deleted) from the norm.mgz to the brainmask.mgz? Thanks again!

Elena