Dear Freesurfer Developers

 

I am doing an ROI--based amyloid PET scan analysis. I have completed all of the steps from the PetSurfer wiki. I now have the preprocessed, averaged, resampled, smoothed PET data in MNI305 space which is constrained to the subcortical gray matter mask.

 

How do I extract mean intensity within all of the subcortical ROI?

 

Thank you!

 

Warm regards,


Jennifer Bramen, PhD
(she/her/hers)
Senior Research Scientist, Neuroimaging
Assistant Professor
Pacific Brain Health Center | Pacific Neuroscience Institute & Foundation | Providence Saint John's Health Center
1301 20th St. #150 Santa Monica, CA 90404
Phone: 310-525-0865  | Fax: 310-315-4069