Hi Alex,
it depends on your images. What kind of coil were they acquired with? In general if a volume coil then placing control points in the wm at the base of the strand at least 1-2mm from the gray/white junction will fix this without eating into the gray. If you have a surface coil/phased array acquisition it may not be fixable so easily.
cheers, Bruce
On Tue, 8 Nov 2005, Fornito, Alexander wrote:
Hi, I was just after some more pointers on using control points. Some gyri are missed in some of my images, and using control points recovers them, but it also tends to make the wm surface eat into the grey matter in some regions. Just wandering if there's anyway to prevent this from happening? Thanks, Alex
Alex Fornito M.Psych/PhD (clin. neuro.) candidate Melbourne Neuropsychiatry Centre and Department of Psychology The University of Melbourne alexander.fornito@wh.org.au
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