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Dear Douglas,
I wanted just to compute rescaled PET image without any PVC but following the
same process as if I would have applied PVC. Moreover, I didn’t want to reduce
FOV with auto mask generated (to still be in the gtmseg space). So I ran the
following command:
mri_gtmpvc --i PET.lps.nii.gz --reg Pet2T1.register.dof6.lta --psf 0 --no-tfe
--seg gtmseg.mgz --default-seg-merge --auto-mask PSF .01 --no-reduce-fov --rbv
--o nopvc_nGMcerebpons --threads 4 --rescale 8 47 174
1) However, in the output directory rbv.nii.gz file still had a reduced fov:
type: nii
dimensions: 297 x 381 x 363
voxel sizes: 0.500000, 0.500000, 0.500000
type: FLOAT (3)
fov: 148.500
Compared to the gtmseg.mgz:
type: MGH
dimensions: 334 x 452 x 424
voxel sizes: 0.500000, 0.500000, 0.500000
type: INT (1)
fov: 226.000
I tried also to remove the —auto-mask option without success. Did I miss
something?
2) I wonder why the process took so much time while there is just a rescaling
to apply when using --psf 0 --no-tfe?
Best,
Matthieu_______________________________________________
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