Check the aseg and see if it was labeled ventricle (and make sure it really 
isn't). You may need to edit the aseg



On Sep 16, 2012, at 5:19 PM, Darren Gitelman <d-gitel...@northwestern.edu> 
wrote:

> Hi
> 
> I have run into an issue that I'm not sure how to correct. What happens is 
> that in some subjects the surfaces don't seem to properly track sulci coming 
> off the medial part of temporo-occipital cortex. Please see green arrows on 
> the attached image. 
> 
> In fact the tutorial on topological defects shows an image with a similar 
> issue, but fixing it is not discussed.
> http://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/TopologicalDefect?action=AttachFile&do=get&target=TopoafterBM.jpg
> 
> I have checked and these are sulci and not the occipital extent of the 
> lateral ventricle.
> 
> Perhaps it is not a problem, or if it is then how to approach fixing it?
> 
> Thank you,
> Darren
> -- 
> Darren Gitelman, MD
> Northwestern University
> 710 N. Lake Shore Dr.
> Abbott 11th Floor
> Chicago, IL 60611
> Ph: (312) 908-8614
> Fax: (312) 908-5073
> 
> <3809-error.png>
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