If you want the coordinates, you can also run mri_segcentroids on the aparc+aseg.mgz in fsaverage. Or, if you want them in mni152 space, you can run the 152 through recon-all and then run mri_segcentroids on the resulting aparc+aseg.mgz

On 1/5/2021 11:01 AM, Mora, Jocelyn S. wrote: Hi Jessica,

FreeSurfer reports "Talairach MNI" coordinates which are MNI305 space. It may be helpful to take a look at our site which details FreeSurfer coordinate systems herehttp://surfer.nmr.mgh.harvard.edu/fswiki/CoordinateSystems?highlight=%28mni%29%7C%28coordinate%29.

I also wonder if what you are looking for can be answered by thishttps://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg54220.html past mailing list thread. Hope these notes help.

Cheers, Jocelyn ________________________________ From: freesurfer-bounces@nmr.mgh.harvard.edumailto:freesurfer-bounces@nmr.mgh.harvard.edu freesurfer-bounces@nmr.mgh.harvard.edumailto:freesurfer-bounces@nmr.mgh.harvard.edu on behalf of Hua, Jessica Jessica.Hua@ucsf.edumailto:Jessica.Hua@ucsf.edu Sent: Monday, January 4, 2021 6:43 PM To: freesurfer@nmr.mgh.harvard.edumailto:freesurfer@nmr.mgh.harvard.edu freesurfer@nmr.mgh.harvard.edumailto:freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] Desikan Killiany Atlas Node Coordinates

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Dear FreeSurfer,

I would like to conduct a network based statistical analysis. One of the inputs in the NBS toolbox is to provide a list of MNI coordinates for each of the brain regions in the parcellation. Is there an established list of MNI coordinates for the Desikan-Killiany atlas? And if not, do you know how I could identify the center MNI coordinate for each of the brain regions in this atlas?

Best,

Jessica

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