Table 2.

Bland–Altman analysis with slope from the linear regression of the difference between CBF_ASL and CBF_PET on the average of CBF_ASL and CBF_PET.

	Region	Bias [95% CI]	LOAL [95% CI]	LOAU [95% CI]	Slope [95% CI]	p-Value
	GM	−15 [–22, –7]	−45 [−59, −32]	16 [2, 29]	−0.80 [−1.12, −0.49]	<0.01
	Cortical	−13 [−16, −9]	−44 [−50, −37]	18 [12, 25]	−0.80 [−0.96, −0.64]	<0.01
	Subcortical	−20 [−23, −16]	−56 [−50, −61]	16 [10, 22]	−1.00 [−1.18, −0.84]	<0.01
Cortical	Frontal	−12 [−20, −4]	−44 [−58, −30]	19 [5, 33]	−0.88 [−1.15, −0.61]	<0.01
	Occipital	−17 [−25, −9]	−50 [−64, −35]	15 [1, 30]	−0.83 [−1.23, −0.44]	<0.01
	Parietal	−15 [−23, −7]	−47 [−61, −33]	17 [3, 31]	−0.77 [−1.12, −0.43]	<0.01
	Temporal	−6 [−13, 1]	−32 [−44, −21]	20 [9, 32]	−0.67 [−1.00, −0.33]	<0.01
Subcortical	Caudate	−16 [−24, −8]	−47 [−60, −33]	14 [1, 28]	−1.01 [−1.38, −0.64]	<0.01
	Putamen	−34 [−44, −25]	−71 [−87, −55]	2 [−14, 18]	−1.22 [−1.58, −0.86]	<0.01
	Pallidum	−27 [−35, −19]	−60 [−74, −45]	6 [−9, 20]	−1.36 [−1.79, −0.93]	<0.01
	Thalamus	−26 [−34, −18]	−59 [−73, −44]	7 [−8, 21]	−0.85 [−1.29, −0.41]	<0.01
	Amygdala	−6 [−12, −1]	−30 [−41, −20]	17 [7, 28]	−0.62 [−1.08, −0.15]	0.01
	Hippocampus	−10 [−15, −4]	−32 [−42, −22]	13 [3, 23]	−0.70 [−1.14, −0.25]	<0.01