Table 3.

Regional PIB binding potentials and MCBP.

	HC	PD-noCI	PD-MCI	PDD	DLB
n	9	8	9	15	6
Occipital	0.14 (0.08)	0.10 (0.09)	0.14 (0.19)	0.08 (0.09)	0.08 (0.06)
Prefrontal*	0.08 (0.18)	0.05 (0.18)	0.05 (0.24)	0.11 (0.27)	0.18 (0.32)
Gyrus Rectus*	0.00 (0.10)	0.00 (0.11)	0.00 (0.20)	0.08 (0.25)	0.16 (0.27)
Temporal*	0.08 (0.11)	0.03 (0.12)	0.05 (0.18)	0.10 (0.19)	0.17 (0.21)
Precuneus*	0.15 (0.13)	0.09 (0.17)	0.22 (0.25)	0.17 (0.28)	0.21 (0.28)
Caudate	−0.08 (0.11)	−0.05 (0.19)	−0.08 (0.13)	−0.00 (0.18)	0.02 (0.22)
MCBP	0.08 (0.13)	0.04 (0.14)	0.08 (0.21)	0.11 (0.24)	0.18 (0.26)

Binding potentials are shown as mean (SD). Cortical regions included in MCBP calculation are indicated with an asterisk (*).

PIB = Pittsburgh Compound B; MCBP = mean cortical binding potential; HC = healthy control; PD-noCI = Parkinson disease without cognitive impairment; PD-MCI = Parkinson disease with mild cognitive impairment; PDD = Parkinson disease with dementia; DLB = Dementia with Lewy bodies.