On 2/9/2020 10:19 PM, Soo-Jong Kim wrote:
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Thank you, Dr. Greve
I checked all about your comment.
I have questions more.
1. I found that volumes or counts in gtm.stats.dat are for native PET
space.
If co-registered PET onto corresponding MRI(i.e. MRI space) is
available using rbv.nii.gz from mri_gtmpvc,
Or if you recommend it by gtm.stats.dat, I can use gtm.stats.dat
--rescale (reference regions) for SUVR in PET space.
What do you prefer or recommend?
I'm not sure what you are trying to get. voxel volume or SUVR?
2. I used mri_vol2vol --mov rbv.nii.gz --targ original_PET.nii --o
test.nii --regheader
because rbv.nii.gz is in different space.
but when overlaid with them, registration is not correct. (WHY)
rbv.nii.gz is in different space, even not in T1.mgz space. (DKT space)
I just wanted to use the pv-corrected image for image processing.
and you also said, smoothing is required after PVC. (Surface or volume
based smoothing (resonable).
The RBV is in anatomical space, if you want to map it back to pet space,
you need the registration file in the aux folder (not --regheader).
Best regards,
Soo
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