On 1/7/19 11:18 AM, Matthieu Vanhoutte wrote:
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 ? Yes Best, Matt Le lun. 7 janv. 2019 à 16:01, Greve, Douglas N.,Ph.D. <dgr...@mgh.harvard.edu<mailto: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<mailto: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<mailto: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 list Freesurfer@nmr.mgh.harvard.edu<mailto:Freesurfer@nmr.mgh.harvard.edu> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu<mailto:Freesurfer@nmr.mgh.harvard.edu> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu<mailto:Freesurfer@nmr.mgh.harvard.edu> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu<mailto:Freesurfer@nmr.mgh.harvard.edu> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu<mailto:Freesurfer@nmr.mgh.harvard.edu> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
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