Hi Sue

you could take the eTIV from 5.0 and the aparc stats from 5.1.0. I believe we already distribute the updated template but it's not used. Nick: do you want to send around a patch to recon-all that people can use before 5.2 comes out?

thanks
Bruce


On Tue, 17 Jul 2012, Susan Ruiz wrote:

Hi all,

Using previous versions of FreeSurfer, we have used the eTIV as a covariate for our volumetric analyses. We

have been using the eTIV numbers from 5.1.0 for new studies. What would you recommend using for subjects who

have been run with 5.1.0? Can you make the template available publicly, or would it be legitimate to take the

eTIV from 5.0 and the aparc stats from 5.1.0?

Thanks,

~Sue

* * ** *** ***** ******** *************

Susan M. M. Ruiz, Ph.D.

Boston University School of Medicine

Laboratory for Neuropsychology

VA Boston Healthcare System

smosher@bu.edu

* * ** *** ***** ******** *************

On Jul 16, 2012, at 4:17 PM, Bruce Fischl wrote:

     can you send us an example? In the ones we've looked at the older versions were more stable.

     Alternatively, we can send you a new template that Avi Snyder generated that you could try out

     cheers

     Bruce

     On Mon, 16 Jul 2012, Ayaz, Muhammad wrote:

           Well, I am using version 5.1.0. I have had same issue in fewer subjects when I used

           the older version as well. Any comments about that?

           -----Original Message-----

           From: Bruce Fischl [mailto:fischl@nmr.mgh.harvard.edu]

           Sent: Monday, July 16, 2012 3:04 PM

           To: Ayaz, Muhammad

           Cc: freesurfer@nmr.mgh.harvard.edu

           Subject: Re: [Freesurfer] sum of WM and GM coming out to be bigger than ICV after

           recon-all

           Hi Ayaz

           what version are you running? There appears to be an instability in the

           eTIV calculation in just version 5.1 (not before or in the upcoming 5.2)

           cheers

           Bruce

           On

           Mon, 16 Jul 2012, Ayaz, Muhammad wrote:

                 Dear All,

                  

                 After running recon-all, I noticed several subjects that sum of WM and GM

                 is

                 bigger  than ICV. I have re-run these subjects and the results is the

                 same

                 sum of GM and WM is coming out to be bigger than ICV.

                 Any suggestions? I need to calculate normalized volumes.

                  

                 Regards

                 Ayaz

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