External Email - Use Caution I used the following command to obtain only rescaled voxel-wise PET image (with no PVC): *mri_gtmpvc --i PET.nii.gz --reg Pet2T1.register.dof6.lta --psf 0 --no-tfe --seg gtmseg.mgz --default-seg-merge --auto-mask PSF .01 --rbv --o nopvc*
If I omitted *--rbv *or* --mgx* option I didn't get the rescaled voxel-wise PET image (without PVC). Could I obtain the rescaled voxel-wise PET image (without PVC) just by dividing each voxel of the native PET image by the mean of the reference region ? Best, Matt Le lun. 7 janv. 2019 à 16:01, Greve, Douglas N.,Ph.D. < dgr...@mgh.harvard.edu> a écrit : > I'm not sure what you mean. If you are turning off PVC, why are you > computing RBV and MGX? What is your command line? What do you mean that > these options don't seem to work? > > On 12/21/18 2:22 PM, Matthieu Vanhoutte wrote: > > External Email - Use Caution > Hi Douglas, > > Thanks for helping. > > To have an only rescaled voxel-wise PET image, these options seem to work > only when -rbv method is used and not -mgx. > > Do you know why ? > > Best, > Matthieu > > > Le mar. 18 déc. 2018 à 17:58, Greve, Douglas N.,Ph.D. < > dgr...@mgh.harvard.edu> a écrit : > >> You will need to set --psf 0 and --no-tfe to fully turn off PVC. >> >> On 12/18/18 4:50 AM, Matthieu Vanhoutte wrote: >> >> External Email - Use Caution >> Hi Douglas, >> >> Could you help me on this point ? >> >> Best, >> Matthieu >> >> >> Le mer. 12 déc. 2018 à 10:50, Matthieu Vanhoutte < >> matthieuvanhou...@gmail.com> a écrit : >> >>> Dear Douglas, >>> >>> Is it possible to use mri_gtmpvc command in order to intensity normalize >>> PET images without applying PVE correction by setting --psf to 0 ? >>> >>> Best, >>> Matthieu >>> >> >> >> _______________________________________________ >> Freesurfer mailing >> listfreesur...@nmr.mgh.harvard.eduhttps://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> >> _______________________________________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > _______________________________________________ > Freesurfer mailing > listfreesur...@nmr.mgh.harvard.eduhttps://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
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