register your diffusion data to the anatomical (bbregister), then map the diffusion metric into the anatomical space (mri_vol2vol), then compute the average over the regions you are interested in (eg, mri_segstats --i diff.mgz --seg aparc+aseg.mgz --ctab-default --sum sum.dat)
On 11/3/2022 1:22 PM, Max Korbmacher wrote:
External Email - Use Caution
And perhaps to add, I'm particularly interested in whole-brain grey matter diffusion metrics. Best, Max
Max Korbmacher PhD student Western Norway University of Applied Sciences Bergen, Norway
*From:* freesurfer-bounces@nmr.mgh.harvard.edu freesurfer-bounces@nmr.mgh.harvard.edu on behalf of Max Korbmacher Max.Korbmacher@hvl.no *Sent:* Thursday, November 3, 2022 5:39:47 PM *To:* freesurfer@nmr.mgh.harvard.edu freesurfer@nmr.mgh.harvard.edu *Subject:* [Freesurfer] Global diffusion metrics
External Email - Use Caution
Dear all,
I have been trying a few things to compute global (not regional) average diffusion metrics.
Is there a function available?
Best,
Max Max Korbmacher
PhD student Western Norway University of Applied Sciences Bergen, Norway
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer