I am trying to apply the synthmorph deformation fields using other tools so that I can combine multiple warps, use spline interpolation, etc. I have tried a few variations of the mri_convert and mri_warp_convert commands, but they either crash or result it skewed or otherwise incorrect outputs. Is there an example out there showing exactly what syntax I should use to convert a synthmorph deform.nii.gz output to something that can work with freesurfer mri_warp_convert, or with FSL or ANTs?

 

-Keith