Hi Rito, I don't think we report a total wm volume, do we? doug
On 06/03/2013 12:56 PM, Ritobrato Datta wrote:
Hi Doug,
Just following up on your reply sometime back - Does total white volume include cerebellar wm vol also ?
Please let me know.
Thanks
Rito
----- Original Message ----- From: Douglas N Greve greve@nmr.mgh.harvard.edu To: freesurfer@nmr.mgh.harvard.edu Sent: Fri, 24 May 2013 17:36:18 -0400 (EDT) Subject: Re: [Freesurfer] Repost: question abt supratentorial vol and total brain vol.
Total Gray includes the cerebellar gray doug On 05/24/2013 03:51 PM, Ritobrato Datta wrote:
Hello All,
Can someone address the following ? I sent this query yesterday but it fell through the cracks.
I am using freesurfer 5.1 for my analysis.
I am interested in calculating the whole brain vol (total Gray vol + total WM vol) excluding the CSF volume and cerebellum.
Total Brain Vol = TotalGrayVol + CorticalWhiteMatterVol
In all of the 79 subjects, when I compare the Total Brain Vol to SupraTentorialVol, I find SupraTentorialVol is smaller than the Total Brain Vol I have calculated.
Here are some measures -
For 79 subjects -
Average Total Brain Vol = 1038395.291
Average SupraTentorialVol = 979996.4684
Is that expected ?
Is it possible that CSF vol is part of Total Brain Vol ?
Any insight will be helpful.
Thanks
Rito
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