Freesurfer's estimate of ICV ("eTIV") is designed to be insensitive to
brain atrophy -- after all, it is an estimate of "intracranial volume",
not brain volume. See the Buckner et al. (2004) paper for a validation
of this.
cheers,
-MH
On Fri, 2011-04-08 at 17:04 -0500, Gonzalo Rojas Costa wrote:
> Hi:
>
> I have an MRI of a 34 years old patient that have a brain atrophy,
> but with freesurefer I got an ICV of 1120 cc that is near the normal
> size for her age... I review the talairach transform, but I think it is
> ok... What could be the problem ?... Could I upload the MRI volume ?...
>
> Sincerely,
>
>
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