TABLE 1

Mean SOR and K_i^ref Values for Healthy Controls and PD Patients

	SOR				K_i^ref (1/min)
	Mean (SD)				Mean (SD)
Region	PD patients	Controls	P	Δ%	PD patients	Controls	P	Δ%
Anterior putamen
Ipsilateral	2.12 (0.26)	2.59 (0.18)	<0.0001	18	0.008 (0.002)	0.012 (0.001)	<0.0001	33
Contralateral	1.93 (0.23)	2.62 (0.20)	<0.0001	27	0.006 (0.002)	0.012 (0.001)	<0.0001	50
Posterior putamen
Ipsilateral	1.91 (0.27)	2.43 (0.22)	<0.0001	21	0.006 (0.002)	0.010 (0.002)	<0.0001	40
Contralateral	1.71 (0.21)	2.47 (0.19)	<0.0001	31	0.005 (0.002)	0.011 (0.001)	<0.0001	55
Putamen
Ipsilateral	1.89 (0.25)	2.46 (0.19)	<0.0001	23	0.006 (0.002)	0.011 (0.002)	<0.0001	45
Contralateral	1.68 (0.21)	2.44 (0.22)	<0.0001	31	0.004 (0.002)	0.011 (0.002)	<0.0001	64
Caudate
Ipsilateral	2.05 (0.21)	2.26 (0.14)	<0.0001	9	0.010 (0.002)	0.011 (0.001)	<0.0001	9
Contralateral	1.96 (0.21)	2.26 (0.15)	<0.0001	13	0.009 (0.002)	0.011 (0.001)	<0.0001	18
Ventral striatum
Ipsilateral	2.03 (0.24)	2.20 (0.27)	0.003	8	0.009 (0.002)	0.010 (0.003)	0.02	10
Contralateral	1.96 (0.20)	2.19 (0.22)	<0.0001	10	0.009 (0.002)	0.010 (0.002)	<0.0001	1

Δ% = percentage decrease in PD patients relative to controls.