surf2vol does not take labels as an input. Instead, use mri_label2label to convert it to a mask, then use mri_surf2vol on the mask

On 4/18/2025 11:39 AM, Loïc Daumail wrote:

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Dear all,

I am trying to convert label files into volume ROI masks. 

This is my command below:

mri_surf2vol --surfval /Users/ldaumail3/Documents/research/ampb_mt_tractometry_analysis/ampb/analysis/functional_surf_roi/sub-NSxLxYKx1964/sub-NSxLxYKx1964_hemi-L_space-fsnative_label-MT_mask.label --o /Users/ldaumail3/Documents/research/ampb_mt_tractometry_analysis/ampb/analysis/fonctional_vol_roi/sub-NSxLxYKx1964/sub-NSxLxYKx1964_hemi-L_space-fsnative_label-MT_mask.nii.gz --identity sub-NSxLxYKx1964 --hemi lh --fillribbon --template /Users/ldaumail3/Documents/research/ampb_mt_tractometry_analysis/ampb/derivatives/freesurfer/sub-NSxLxYKx1964/mri/brain.mgz


I get this error: 


Reading surface /Users/ldaumail3/Documents/research/ampb_mt_tractometry_analysis/ampb/derivatives/freesurfer/sub-NSxLxYKx1964/surf/lh.white

Done reading source surface

Reading thickness /Users/ldaumail3/Documents/research/ampb_mt_tractometry_analysis/ampb/derivatives/freesurfer/sub-NSxLxYKx1964/surf/lh.thickness

Done

INFO: reading  /Users/ldaumail3/Documents/research/ampb_mt_tractometry_analysis/ampb/analysis/functional_surf_roi/sub-NSxLxYKx1964/sub-NSxLxYKx1964_hemi-L_space-fsnative_label-MT_mask.label as unknown

mri_read(): type = 32

error: mri_read(): code inconsistency (file type recognized but not caught)

ERROR: could not read /Users/ldaumail3/Documents/research/ampb_mt_tractometry_analysis/ampb/analysis/functional_surf_roi/sub-NSxLxYKx1964/sub-NSxLxYKx1964_hemi-L_space-fsnative_label-MT_mask.label as unknown


Any idea what would cause this? Is it because the labels weren't saved in the correct format?


Thanks,

Best,

-Loïc


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