Is there some kind of correspondance between them that is specified in any of
the files? I'm thinking of trying to use something like the link method
(desrcibed in the Lerch & Evans, 2005 paper) for estimating thickness, but as I
understand it, there needs to be some kind of established link between the
points on each surface.
-----Original Message-----
From: Bruce Fischl [mailto:[EMAIL PROTECTED]
Sent: Wed 6/22/2005 9:20 PM
To: Fornito, Alexander
Cc: freesurfer@nmr.mgh.harvard.edu
Subject: Re: [Freesurfer] vertex correspondance
Hi Alex,
yes, all the surfaces of a hemisphere (except qsphere) have the same #
of
vertices/edges and faces. I think Doug has something that will sample
the
mask. mri_vol2label or something like that?
Bruce
On Wed, 22 Jun 2005, Fornito, Alexander wrote:
> Hi again,
>
> So many questions!!
>
> Is there some sort of correspondence between vertices on the inner
(wm)
> and outer (pial) surfaces? Ie., for every vertex on the inner surface,
> is there a point on the outer surface, and if so, does Freesurfer
retain
> this information in any of the files?
>
>
>
> Also, I have some binary masks that I have manually traced using
another
> program that I would like to apply to the surfaces to get regional
> measures of thickness. The mask images are in analyze format. Is there
> any way that I can do this?
>
> Thanks as always,
>
> Alex
>
>
>
>
>
> Alexander Fornito
>
> M.psych (Clin. Neuro.)/PhD candidate
>
> Melbourne Neuropsychiatry Centre and Department of Psychology
>
> The University of Melbourne
>
> [EMAIL PROTECTED]
>
>
>
>
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