Hi Matt,
I think this is because the extreme capsule is lost so it looks like the
putamen borders cortical gray matter. We prevent the surface from deforming
once it's adjacent to a subcortical structure to stop it from doing strange
things. They editing the aseg.mgz and the wm.mgz so that there is white
matter between cortex and putamen then rerun autorecon2-wm.
cheers,
Bruce
On Tue, 30 Oct 2007, Matt Colvin wrote:
Dear Freesurfer gurus,
Hello, my name is Matt Colvin, with the Conte Center at Washington
University in St. Louis. I came across a problem with a particular brain
where the wm and pial lines cut out a chunk of white and grey matter. I
have not come across a problem quite like this one so I was wondering if
anybody had a suggestion as to how to fix it? I believe it is in the
insula of the left hemi of this brain, though I am not certain (the region
gets labeled as "unknown" in the parcellation). I have attached two screen
caps which show the problem area.
Thanks for any help anyone could offer.
--Matt Colvin
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
