Fig. 5From: A new method to quantify tau pathologies with 11C-PBB3 PET using reference tissue voxels extracted from brain cortical gray matterCorrelation of α values in two reference regions. α values in the reference voxels extracted from cortical gray matter showed a good correlation with those in the cerebellar cortical ROI (r 2 = 0.94). Straight line indicates line of identityBack to article page