Re: [Freesurfer] PETSurfer: "mri_gtmpvc --psf 0 --no-tfe" voxel-wise output

>>But in the case where --psf 0 --no-tfe are specified, isn't the high resolution of gtmseg lost when rescaling intensities to mean reference region ? Yes On 2/14/19 5:25 PM, Matthieu Vanhoutte wrote: > > External Email - Use Caution > > > > Le jeu. 14 févr. 2019 à 21:36, Greve,

Re: [Freesurfer] PETSurfer: "mri_gtmpvc --psf 0 --no-tfe" voxel-wise output

External Email - Use Caution Le jeu. 14 févr. 2019 à 21:36, Greve, Douglas N.,Ph.D. < dgr...@mgh.harvard.edu> a écrit : > > > On 2/14/19 2:25 PM, Matthieu Vanhoutte wrote: > > External Email - Use Caution > > > >> Le 14 févr. 2019 à 19:37, Greve, Douglas N.,Ph.D. < >

Re: [Freesurfer] PETSurfer: "mri_gtmpvc --psf 0 --no-tfe" voxel-wise output

On 2/14/19 2:25 PM, Matthieu Vanhoutte wrote: > External Email - Use Caution > >> Le 14 févr. 2019 à 19:37, Greve, Douglas N.,Ph.D. a >> écrit : >> >> >> >> On 2/14/19 1:14 PM, Matthieu Vanhoutte wrote: >>> External Email - Use Caution >>> >>> >>> >>> Le jeu. 14 févr. 2019 à

Re: [Freesurfer] PETSurfer: "mri_gtmpvc --psf 0 --no-tfe" voxel-wise output

External Email - Use Caution > Le 14 févr. 2019 à 19:37, Greve, Douglas N.,Ph.D. a > écrit : > > > > On 2/14/19 1:14 PM, Matthieu Vanhoutte wrote: >> >> External Email - Use Caution >> >> >> >> Le jeu. 14 févr. 2019 à 18:31, Greve, Douglas N.,Ph.D. >>

Re: [Freesurfer] PETSurfer: "mri_gtmpvc --psf 0 --no-tfe" voxel-wise output

On 2/14/19 1:14 PM, Matthieu Vanhoutte wrote: > > External Email - Use Caution > > > > Le jeu. 14 févr. 2019 à 18:31, Greve, Douglas N.,Ph.D. > mailto:dgr...@mgh.harvard.edu>> a écrit : > > > > On 2/14/19 12:16 PM, Matthieu VANHOUTTE wrote: > >          External Email - Use

Re: [Freesurfer] PETSurfer: "mri_gtmpvc --psf 0 --no-tfe" voxel-wise output

External Email - Use Caution Le jeu. 14 févr. 2019 à 18:31, Greve, Douglas N.,Ph.D. < dgr...@mgh.harvard.edu> a écrit : > > > On 2/14/19 12:16 PM, Matthieu VANHOUTTE wrote: > > External Email - Use Caution > > > > Hi Douglas, > > > > So to register PET to gtmseg space

Re: [Freesurfer] PETSurfer: "mri_gtmpvc --psf 0 --no-tfe" voxel-wise output

On 2/14/19 12:16 PM, Matthieu VANHOUTTE wrote: > External Email - Use Caution > > Hi Douglas, > > So to register PET to gtmseg space mri_gtmpvc command use nearest > neighbor, interpolation right ? It does not map the PET to the gtmseg space. It maps the gtmseg to the PET space. Since

Re: [Freesurfer] PETSurfer: "mri_gtmpvc --psf 0 --no-tfe" voxel-wise output

External Email - Use Caution Hi Douglas, So to register PET to gtmseg space mri_gtmpvc command use nearest neighbor, interpolation right ? And what about the interpolation method to use when projecting PVE corrected PET on surface  ? Thanks, Matthieu On 14/02/2019 17:44,

Re: [Freesurfer] PETSurfer: "mri_gtmpvc --psf 0 --no-tfe" voxel-wise output

The GTM operates on regions, so you can't do trilin interp. The operations that you describe below are not used in mri_gtmpvc. If  you are trying to get something close to what the GTM does, then use nearest neighbor On 2/14/19 3:43 AM, Matthieu Vanhoutte wrote: > External Email - Use

Re: [Freesurfer] PETSurfer: "mri_gtmpvc --psf 0 --no-tfe" voxel-wise output

External Email - Use Caution Hi Douglas, Could you help me concerning my previous questions ? Thanks, Matthieu > Le 11 févr. 2019 à 17:37, Matthieu VANHOUTTE a > écrit : > > Hi Douglas, > > Thanks for clarification. Why use "nearest neighbor" instead of classical >

Re: [Freesurfer] PETSurfer: "mri_gtmpvc --psf 0 --no-tfe" voxel-wise output

It will not used trilinear interp. Try it with nearest neighbor On 2/10/19 11:55 AM, Matthieu Vanhoutte wrote: > External Email - Use Caution > > Dear Douglas, > > Before using "mri_gtmpvc --psf 0 --no-tfe -- rbv" according your advice to > obtain voxel-wise output rescaled without PVC