Can you run
tkregisterfv --debug --mov pet.nii.gz --targ T1.nii --reg pet_T1.reg.lta
and send the terminal output?

On 10/2/2019 3:58 PM, Vicky Yang wrote:

        External Email - Use Caution        

Dear Freesurfer experts,

I used mri_coreg to register my pet data to T1 like below:

          mri_coreg --mov pet.nii.gz --ref T1.nii --reg pet_T1.reg.lta

After coregistering, I checked the registration using tkregisterfv like below:

          tkregisterfv --mov pet.nii.gz --targ T1.nii --reg pet_T1.reg.lta

However, the command didn't work with an error: 
          if: Expression Syntax.

Any suggestions would be appreciated. Thank you in advance for your help.

Sincerely,
Vicky


_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer