I am running the rbv pvc correction on a mac system and encountered the following error.

mghRead(/Volumes/DATA_PETMR/data_donatienne/Boston_final_analysis/Donatienne/Analyses_freesurfer/recon_flair/unknown/mri/orig.mgz, -1): could not open file

The subjects directory is Volumes/DATA_PETMR/data_donatienne/Boston_final_analysis/Donatienne/Analyses_freesurfer/recon_flair, the orig files are located in Volumes/DATA_PETMR/data_donatienne/Boston_final_analysis/Donatienne/Analyses_freesurfer/recon_flair/$subjectname

Thank you!

Kind regards

Donatienne