Table 3.

Significant differences in blood flow between patients during GPi condition vs. preoperatively and SHAM condition.

Comparison	Direction of flow change	VOI analysis		SPM analysis
		Region	p	Region	MIN (x y z)	Voxel	Z value
GPi vs. preOP	Decrease	Thalamus	0.0365	Right thalamus	2 −12 18	147	4.12
	Decrease	Putamen	0.0187	Right caudate, putamen, insula, inferior frontal cortex	30 22 6	100	5.27
	Decrease	Pallidum	0.0167	Left pallidum, putamen	−16 2 0	126	3.90
	Decrease	Cerebellum	0.0418	Right cerebellum	56 46 −32	47	3.96
				Left cerebellum	−24 −58 −20	39	4.10
	Decrease			Right middle temporal cortex	66 −42 2	40	4.08
				Right hippocampus	18 −34 −6	27	4.04
				Left middle temporal cortex	−56 −52 −4	29	4.16
GPi vs. SHAM	Decrease	Putamen	0.0384	Right putamen	30 20 −2	46	3.82
				Left putamen, supra orbital frontal cortex, insula	−26 8 −10	40	3.30
	Decrease			Right caudate	10 10 −6	29	3.76
				Right thalamus	6 −14 8	20	3.64
	Decrease			Right cerebellum	48 −68 −24	48	3.86
				Left cerebellum	−24 −86 −32	24	3.93
	Decrease			Left inferior and middle temporal cortex	−46 −22 −38	75	4.79
				Left fusiform gyrus	−34 −60 −2	51	4.72
				Right temporal pole and inferior cortex	42 6 −36	31	3.65
				Left cuneus	−6 −82 18	32	3.93
	Increase			Superior and middle frontal cortex	28 42 44	39	3.65
				Precuneus bilateral	4 −52 44	20	4.17
				Bilateral middle and right anterior cingulate	0 −4 32	33	4.47