Table 4.

Intra-Region Homogeneity: Coefficient of Variation by Region of Interest

Scan	Cortical GM	Cerebral WM	Ventricular CSF	Thalamus	Putamen	Caudate	Cerebellar GM	Cerebellar WM	Brainstem
	μ ± σ	μ ± σ	μ ± σ	μ ± σ	μ ± σ	μ ± σ	μ ± σ	μ ± σ	μ ± σ
FLAIR	26% ± 5	16% ± 3	40% ± 8	21% ± 4	14% ± 3	23% ± 7	24% ± 6	19% ± 3	22% ± 5
MPRAGE (Fast ADNI)	34% ± 7	34% ± 8	37% ± 19	32% ± 5	16% ± 4	24% ± 10	30% ± 5	27% ± 7	30% ± 15
DTI: Reference Image	33% ± 4	14% ± 4	48% ± 19	26% ± 8	10% ± 3	22% ± 12	34% ± 11	20% ± 9	39% ± 14
DTI: Diffusion Weighted	16% ± 2	9% ± 1	9% ± 3	9% ± 1	6% ± 2	7% ± 2	17% ± 6	12% ± 3	15% ± 4
DTI Geometric Reference	42% ± 8	23% ± 8	111% ± 35	50% ± 14	14% ± 4	60% ± 27	36% ± 10	30% ± 16	39% ± 22
Resting State fMRI	30% ± 6	12% ± 2	23% ± 9	21% ± 5	10% ± 4	14% ± 7	27% ± 7	14% ± 3	25% ± 11
B0 Magnitude (TE=8ms)	63% ± 30	61% ± 33	58% ± 35	44% ± 37	39% ± 35	38% ± 22	25% ± 11	22% ± 13	25% ± 9
B0 Magnitude (TE=9ms)	64% ± 30	62% ± 33	59% ± 36	45% ± 38	39% ± 33	37% ± 21	25% ± 11	22% ± 13	25% ± 9
B1 Magnitude	54% ± 17	59% ± 25	39% ± 17	27% ± 14	42% ± 48	41% ± 23	27% ± 14	25% ± 7	22% ± 6
Arterial Spin Labeling (ASL)	76% ± 36	74% ± 38	60% ± 37	44% ± 44	38% ± 30	38% ± 20	26% ± 9	15% ± 4	15% ± 6
VASO	98% ± 31	95% ± 29	98% ± 31	106% ± 44	44% ± 14	52% ± 20	101% ± 52	100% ± 50	101% ± 42
qT1 (15°)	20% ± 2	10% ± 1	5% ± 1	7% ± 1	4% ± 1	5% ± 1	22% ± 9	9% ± 5	14% ± 7
qT1 (60°)	21% ± 3	13% ± 2	24% ± 6	17% ± 4	7% ± 1	14% ± 6	30% ± 13	15% ± 10	24% ± 10
qT2 (dual echo: 30 ms)	61% ± 29	60% ± 30	54% ± 23	43% ± 24	43% ± 35	53% ± 24	35% ± 10	37% ± 17	38% ± 11
qT2 (dual echo: 80 ms)	45% ± 16	44% ± 15	49% ± 12	47% ± 16	33% ± 23	44% ± 11	36% ± 11	44% ± 24	46% ± 18
MT: Reference	65% ± 29	59% ± 32	47% ± 31	34% ± 32	42% ± 37	34% ± 21	27% ± 13	18% ± 12	17% ± 8
MT: 1.5 kHz	41% ± 16	37% ± 17	37% ± 15	34% ± 21	25% ± 20	25% ± 11	27% ± 8	25% ± 10	24% ± 6

Note σ is the standard deviation of mean intensities across subjects.