Hi Riccardo

when you say "compute the volume", what exactly do you mean? If you want
the interior volume of the two surfaces, you can use mris_volume, which
uses the divergance formula to do the calculation

cheers
Bruce


On Tue, 30 Oct 2018, Riccardo Falsini wrote:

>
>         External Email - Use Caution        
>
> Dear Freesurfer experts,
> Hello, I am a student currently working in Frank Guenther's lab at Boston University. 
> I am quite new to freesurfer, so forgive me if the following question may be elementary.
>
> I am interested in using freesurfer to compare the level of atrophy (preferably for different brain
> areas) in an individual subject to several controls. I'm wondering if there is any way to determine
> the volume of the '?h.pial-outer-smoothed', and corresponding '?h.pial' file generated from running
> the 'recon-all -s <subj> -localGI' command. The idea is that I could generate a metric representing
> a general level of atrophy in subjects by comparing these two volumes (or by comparing the
> '?h.pial-outer-smoothed' to intracranial volume), however, I have been unable to find a way to
> retrieve these values. Does anyone have any suggestions? I would greatly appreciate any help in this
> regard.
>
> Thank you for your help!
>
> Best,
> Riccardo Falsini
>
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