MAPT and Lewy body dementia: Postmortem studies indicated that approximately 50% of patients with DLB also have Aβ and tau pathology.15 Of interest, previous tau-PET studies in DLB using quantitative PET measures have generally shown minimal tracer uptake in patients with DLB.38,39 In this study, we also observed that SUVr of visual read tau-positive patients with DLB was low and indistinguishable from SUVr of visual read tau-negative patients with DLB.