Hi FreeSurfer,

The FreeSurfer atlas includes 5 corpus callosum regions. I am trying to create ROIs of those 5 regions and transfer them to FSL in .nii format to be used in DTI analyses. However, I have been unable to figure out how to put these ROIs in MNI152 space and transfer them to FSL. It was recommended that I run recon-all on the MNI template. Here is my code:

recon-all -s John1 -i MNI152_T1_2mm_brain.nii -all -qcache -3T

However when I try to run recon-all, I get the below message. Do you know why recon-all is not working (note: I tried this is 6.0 and 7.2)? And do you know how I can get FreeSurfer CC ROIS into MNI152 space and then convert them to FSL .nii files?

#@# Curv .H and .K lh Mon Apr 25 18:54:14 PDT 2022

/Users/jessicahua/Box/John/John1/surf

\n mris_curvature -w -seed 1234 lh.white.preaparc \n

setting seed for random number generator to 1234

total integrated curvature = 16.045*4pi (201.629) --> -15 handles

ICI = 107.1, FI = 655.1, variation=11743.051

writing Gaussian curvature to /Users/jessicahua/Box/John/John1/surf/lh.white.preaparc.K...done.

writing mean curvature to /Users/jessicahua/Box/John/John1/surf/lh.white.preaparc.H...done.

rm -f lh.white.H

ln -s lh.white.preaparc.H lh.white.H

ln: lh.white.H: Function not implemented

Darwin Jessicas-MacBook-Pro-2.local 17.7.0 Darwin Kernel Version 17.7.0: Fri Oct 30 13:34:27 PDT 2020; root:xnu-4570.71.82.8~1/RELEASE_X86_64 x86_64

recon-all -s John1 exited with ERRORS at Mon Apr 25 18:54:17 PDT 2022

Thank you,

Jessica