SUV or regional uptake ratio calculation


I have predefined ROI (nii.gz image), which I want to overlay on normalized PET images (nii.gz) to calculate the regional uptake ratio. Suppose I have 35 predefined ROI, and I need the uptake ratio of each ROI. How can I calculate the normalized regional uptake ratio? Does anyone have python/Matlab scripts or any suggestion to calculate the uptake ratio?



have you solved it? i also want to know and use it