You should first make sure that the registration is ok with

tkregister --mov ICA_split0000.nii.gz --regheader --s fsaverage5 --reg deleteme.dat

Note that going from a volume group space onto the surface is often not that good

On 06/11/2018 11:45 AM, Tom Vanasse wrote:

External Email - Use Caution

Hello,

I wanted to confirm that I properly performed the mri_vol2surf command. I'm interested in projecting a z-score image (in Talairach space) to an average surface (fsaverage5), using a mid-gray projection fraction.

mri_vol2surf --src ICA_split0000.nii.gz --regheader fsaverage5 --hemi lh --o ICA_split0000_lh.nii --projfrac 0.5

My --src volume has array size (80 x 96 x 70) with 2mm isotropic voxels in Talairach space. The command ran without error, but I wanted to be sure it is indeed the correct approach.

Thanks,

Tom Vanasse

Thomas J. Vanasse Medical Physics PhD Candidate UT Health San Antonio Research Imaging Institute, Office 2.312

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