TABLE 3.

Comparison of Percentage Error Between Hypoperfusion Region in Each Disease Group and Same Region in Reference Group for ChangAC Applying μ_opt-Value of 0.140 and ChangACSC Applying μ_opt-Value of 0.160

			ChangAC			ChangACSC
Disease	Brain region	Side	Disease	Reference	P	Disease	Reference	P
AD	Posterior cingulate gyrus	R	0.55 ± 3.49	−0.71 ± 3.04	0.34	−3.71 ± 2.78	−1.76 ± 5.72	0.14
		L	0.52 ± 3.44	0.17 ± 2.48	0.83	−4.85 ± 4.19	−1.97 ± 5.75	0.13
	Medial temporal lobe	R	3.00 ± 3.32	5.82 ± 4.76	0.08	−0.55 ± 4.36	1.89 ± 6.26	0.23
		L	4.83 ± 3.38	6.95 ± 5.03	0.18	2.38 ± 3.64	3.51 ± 6.57	0.83
DLB	Occipital lobe	R	−4.24 ± 3.38	−4.33 ± 2.57	0.89	−7.82 ± 5.09	−7.47 ± 4.97	0.69
		L	−3.33 ± 2.96	−2.89 ± 3.10	0.64	−7.03 ± 4.64	−6.33 ± 3.66	0.44
FTLD	Frontal lobe	R	−3.29 ± 4.34	−3.79 ± 1.41	0.85	−5.15 ± 6.02	−5.26 ± 0.86	0.80
		L	−0.09 ± 4.45	−1.39 ± 2.05	0.56	−1.76 ± 6.75	−2.89 ± 4.25	0.84
	Temporal lobe	R	−2.70 ± 3.48	−3.43 ± 3.16	0.59	−5.98 ± 4.51	−1.45 ± 4.66	0.88
		L	1.64 ± 3.30	1.27 ± 3.26	0.70	−1.45 ± 4.66	−1.88 ± 4.89	0.88
MSA-C	Cerebellum	R	−1.11 ± 5.51	−0.13 ± 3.40	0.69	−6.05 ± 9.54	−8.79 ± 4.63	0.45
		L	0.66 ± 5.83	2.32 ± 3.71	0.36	−3.70 ± 9.93	−6.62 ± 4.76	0.72

AD = Alzheimer disease; DLB = dementia with Lewy bodies; FTLD = frontotemporal lobar degeneration; MSA-C = multiple system atrophy of cerebellar type.
Data are mean ± SD.