Hi Sebastien
check the aseg - it is probably regions that are not cortex (where the surface passes adjacent to a noncortical structure like the callosum or the basal ganglia Bruce
On Fri, 5 Jul 2013, Sebastian Urchs wrote:
Hi,
I found that in some of my subjects there are - after manual correction - focal regions with zero cortical thickness. On closer inspection, I can see that the white matter and pial boundaries are touching in these regions - hence probably the zero thickness.
My question is: should I manually force these boundaries to separate and if so, what would be the best way to do so and by what margin?
I attached a link to a shared image explaining the problem.
Thanks a lot, Sebastian
019402_thickness.png -https://docs.google.com/file/d/0B2xRN4FkuGF9S2dHVm1lYjB4OUE/edit?usp=sharin g