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Dear experts,

I would like to get a noPVC PET volume scaled by the intensity of the pons, then project it and apply standard surface-based analysis. On the PetSurfer website it says:

**

If you do not want to perform PVC, you can just run

mri_gtmpvc --i pet.nii.gz --reg template.reg.lta --seg  gtmseg.mgz  --default-seg-merge  --auto-mask 1.01 --no-tfe --o gtmpvc.output

 **

If I do this, I cannot find any output in the folder which I can project on the surface corresponding to the non-PVC PET volume referenced to the pons.

The idea is to have comparable PET-PVC vs. PET-noPVC data scaled to the pons in both cases. In order to do this, should I divide (externally to the mri_gtmpvc function) each voxel of the PET image by the average of the pons? 

Thank you very much in advance.

Best regards,

Marina

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