this is probably stuff labeled as choroid in the aseg.mgz and won't matter (it's not near cortex in any case).

cheers, Bruce On Wed, 11 Feb 2009, Dankner, Nathan (NIH/NIMH) [F] wrote:

Hello,

In many of the surfaces that I have made, a frequent error seems to center around the ventricles. The white matter segmentation often does not follow the white matter near the ventricle, leaving a circle inside the ventricle area. This seems to create a dimple on the output surface. I have attached a screenshot of the surface (the dimple is obvious) and also of a coronal and saggital slice of the wm.mgz where the error occurs. How is this best fixed? Thanks,

Nathan