Le 15 déc. 2015 19:02, "Douglas N Greve" <greve@nmr.mgh.harvard.edu> a écrit :

It is not subsegmented in 6.0 either:). When you run gtmseg, it will
create the new segmentation that include pons and a few other things

On 12/15/2015 12:56 PM, Matthieu Vanhoutte wrote:
> Dear Douglas,
>
> Please see below :
>
> 2015-12-15 18:37 GMT+01:00 Douglas N Greve <greve@nmr.mgh.harvard.edu
> <mailto:greve@nmr.mgh.harvard.edu>>:
>
>
>
>     On 12/15/2015 04:46 AM, Matthieu Vanhoutte wrote:
>     > Dear experts,
>     >
>     > Could anyone answer to my questions below ?
>     >
>     > Thanks !
>     >
>     > Best regards,
>     > Matthieu
>     >
>     > 2015-12-10 10:10 GMT+01:00 Matthieu Vanhoutte
>     > <matthieuvanhoutte@gmail.com
>     <mailto:matthieuvanhoutte@gmail.com>
>     <mailto:matthieuvanhoutte@gmail.com
>     <mailto:matthieuvanhoutte@gmail.com>>>:
>     >
>     >     Dear FS experts,
>     >
>     >     1) First Is it possible to use the partial volume correction
>     >     provided in the v6 beta version of FreeSurfer despite the fact
>     >     that recon-all have been done for all subjects with the v5.3 ?
>     >
>     Yes
>
>
> Great ! but isn't it a problem for computing rSUV with pons as
> reference structure since brainstem isn't sub-segmented in the version
> 5.3 of recon-all ?
>
>     >
>     >
>     >     2) Does this method supply an intensity normalisation for
>     PET images ?
>     >
>     What do you mean by intensity normalization? For uptake analysis,
>     people
>     usually use SUV (standard uptake values where the whole image is
>     scaled
>     by a value related to the injection mass and subject weight) or you
>     choose a reference structure to scale by (often called rSUV for
>     relative). By default mri_gtmpvc uses pons, but you can choose any
>     structure you want with the --rescale flag
>
>     >
>     >
>     >     Best regards,
>     >     Matthieu
>     >
>     >
>     >
>     >
>     > _______________________________________________
>     > Freesurfer mailing list
>     > Freesurfer@nmr.mgh.harvard.edu
>     <mailto:Freesurfer@nmr.mgh.harvard.edu>
>     > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
>
>     --
>
>
> Best regards,
> Matthieu
>
>     Douglas N. Greve, Ph.D.
>     MGH-NMR Center
>     greve@nmr.mgh.harvard.edu <mailto:greve@nmr.mgh.harvard.edu>
>     Phone Number: 617-724-2358 <tel:617-724-2358>
>     Fax: 617-726-7422 <tel:617-726-7422>
>
>     Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
>     <http://surfer.nmr.mgh.harvard.edu/fswiki/BugReporting>
>     FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2
>     www.nmr.mgh.harvard.edu/facility/filedrop/index.html
>     <http://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 <mailto: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
greve@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