Table 3. Summary of findings in dementia with Lewy bodies.

AD: Alzheimer's disease; PD: Parkinson's disease; PDD: Parkinson's disease with dementia; DLB: dementia with Lewy bodies; HC: healthy controls; PET: positron emission tomography; FDG-PET: fluorine-18-fluorodeoxyglucose positron emission imaging; PiB-PET: Pittsburgh compound B positron emission tomography; MRI: magnetic resonance imaging.

Author	Imaging modality	Subjects	Summary of findings
Kantarci et al. [22]	18F-AV-1451, PiB PET	19 DLB, 19 AD, 95 HC	18F-AV-1451 retention in DLB is lesser compared to AD, but higher in the posterior temporoparietal and occipital cortex compared to the control group.
Gomperts et al. [23]	18F-AV-1451, PiB PET	7 DLB, 8 PDD, 9 PD without dementia, 29 HC	Markedly raised 18F-AV-1451 retention in both DLB and PDD compared to the healthy controls, increased tau burden correlates well with the clinical severity.
Smith et al. [25]	18F-AV-1451 PET, MRI	6 DLB, 18 PDD, 11 PD without dementia, 44 HC	Raised parietal 18F-AV-1451 binding in DLB patients, which was linked to abnormality in executive functions in patients.