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Hi,

We are interested in replacing a couple of labels in aseg atlas with our own roi's already in the same space as of "aseg.mgz" atlas in the fsaverage folder. 

What would be the best way to do this? Could someone help or guide me if anyone has done something similar to this query?

Can I just add the regions (in the form of 3d masks) to the aseg atlas and create aseg_modified.mgz and later replace the aseg.mgz with aseg_modified.gz and rename the aseg_modified.mgz back to aseg.mgz.

If I follow this procedure and run "recon-all" will the aseg_stats will give me volumes based on the new volumes?

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Regards

Tilak

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