Thanks Douglas for the answer !
But isn't PVC design for better working in terms of results with v6_beta than v5.3 ?
Best regards,
Matthieu 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 ? > YesGreat ! 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