ic thats right....I was getting confused. So the total gm vol includes cerebellar gm vol but the cortical wm vol only includes the wm vol under the cortical ribbon and around the subcortical gm structures....? Or does that include wm under the cerebellar cortex as well ?
Is there a table somewhere which specifies which of these freesurfer parcellated structures contribute to these combined measures such has supratentorial vol / whole gm vol etc etc.... That will be very helpful. ----- Original Message ----- From: Douglas N Greve <gr...@nmr.mgh.harvard.edu> To: Ritobrato Datta <rida...@mail.med.upenn.edu>, Freesurfer@nmr.mgh.harvard.edu Sent: Mon, 03 Jun 2013 12:59:30 -0400 (EDT) Subject: Re: [Freesurfer] Repost: question abt supratentorial vol and total brain vol. 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 <gr...@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 >> >> _______________________________________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> >> The information in this e-mail is intended only for the person to whom it is >> addressed. If you believe this e-mail was sent to you in error and the e-mail >> contains patient information, please contact the Partners Compliance >> HelpLine at >> http://www.partners.org/complianceline . If the e-mail was sent to you in >> error >> but does not contain patient information, please contact the sender and >> properly >> dispose of the e-mail. >> >> >> _______________________________________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> -- Douglas N. Greve, Ph.D. MGH-NMR Center gr...@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2 www.nmr.mgh.harvard.edu/facility/filedrop/index.html Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
