Yes, the white surface is actually pretty good all around. I am actually
concerned about how the conditions that created the poor aseg segmentation
would impact any subcortical analysis. I am not entirely clear what the
impact of this segmentation could be and how (besides a voxel by voxel
correction) to fix it.
-Ronny
Hi Ronny
the white surface seems like it is in the right place most of the time,
isn't it? That's why we use it for morphometry more than the aseg where we
can use either
cheers
Bruce
On Tue, 2 Apr 2013,
preci...@nmr.mgh.harvard.edu wrote:
I am having a bit of a problem the aseg on this subject. (See
2013.03.22.cor108.aseg.jpg attached) It is way overestimating the white
matter bilaterally. The problems are about this bad for about 20 or more
slices so editing manually seems like... a less than efficient
proposition. Any thoughts on how to fix this programmatically?
For reference, I have a attached some other images with no segmentation
and using the Desikan-Killiany atlas (aparc+aseg) and the Destrieux
atlas
(aparc.a2009s+aseg) which look fine.
Thanks,
-Ronny
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