what is your command line?
On 11/11/2024 3:47 PM, Lee, Hansol wrote:
Dear FreeSurfer developers,
I am attempting to use “mri_vol2surf” command to project output from
diffusion MRI models (e.g., DTI) onto the cortical surface.
The registration between the diffusion MRI and anatomical space was
performed using “bbregister”, and the projection works well for
different --projfrac values (e.g., 0 to 1 from the white matter surface).
However, I encountered issues when attempting to use the “—projopt”
option to account for partial volume effects. Specifically, I received
the following errors:
“reading gm volume fraction from
/autofs/space/allegro_002/users/hlee/SANDI/pvf/Tract_HC_001_07222016/pvf.gm.mgz
reading wm volume fraction from
/autofs/space/allegro_002/users/hlee/SANDI/pvf/Tract_HC_001_07222016/pvf.wm.mgz
reading csf volume fraction from
/autofs/space/allegro_002/users/hlee/SANDI/pvf/Tract_HC_001_07222016/pvf.csf.mgz
error: No such file or directory
error: GM estimation at vno 0 couldn't find enough samples
error: No such file or directory
error: GM estimation at vno 1 couldn't find enough samples
error: No such file or directory
error: GM estimation at vno 2 couldn't find enough samples
error: No such file or directory
error: GM estimation at vno 3 couldn't find enough samples
error: No such file or directory
error: GM estimation at vno 4 couldn't find enough samples
error: No such file or directory
error: GM estimation at vno 5 couldn't find enough samples
error: No such file or directory”
In the directory, I already have “pvf.gm.mgz”, “pvf.wm.mgz”, and
“pvf.csf.mgz” files.
I searched the archive and found a similar error reported in this thread:
_https://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg72784.html_
I would greatly appreciate any insights or suggestions to resolve this
issue.
Thank you in advance for your help!
Best regards,
Hansol Lee
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