TABLE 1

Rate Constant Estimates from 2-TCM Analysis

	K₁ (mL⋅min⁻¹⋅cm⁻³)		k₂ (min⁻¹)		k₃ (min⁻¹)		k₄ (min⁻¹)
Region	MAB	HAB	MAB	HAB	MAB	HAB	MAB	HAB
Thalamus	0.39 (0.12)	0.35 (0.15)	0.77 (0.40)	0.40 (0.14)	0.53 (0.09)	0.28 (0.06)	0.12 (0.05)	0.06 (0.01)
Caudate	0.33 (0.09)	0.24 (0.13)	0.72 (0.38)	0.18 (0.07)	0.49 (0.15)	0.13 (0.07)	0.17 (0.09)	0.08 (0.02)
Putamen	0.35 (0.07)	0.37 (0.21)	0.57 (0.30)	0.39 (0.26)	0.31 (0.20)	0.26 (0.13)	0.08 (0.02)	0.08 (0.02)
Hippocampus	0.29 (0.08)	0.30 (0.22)	0.70 (0.40)	0.55 (0.62)	0.38 (0.23)	0.22 (0.18)	0.15 (0.10)	0.05 (0.03)
White matter	0.23 (0.05)	0.20 (0.10)	0.53 (0.32)	0.22 (0.13)	0.31 (0.14)	0.15 (0.10)	0.10 (0.04)	0.05 (0.01)
Cerebellum	0.39 (0.09)	0.30 (0.17)	0.77 (0.42)	0.32 (0.17)	0.36 (0.24)	0.30 (0.19)	0.29 (0.25)	0.11 (0.05)
Occipital	0.45 (0.13)	0.32 (0.15)	1.03 (0.77)	0.33 (0.13)	0.46 (0.15)	0.27 (0.13)	0.31 (0.29)	0.09 (0.03)
Parietal	0.36 (0.05)	0.33 (0.17)	0.65 (0.15)	0.32 (0.15)	0.52 (0.09)	0.27 (0.13)	0.17 (0.10)	0.08 (0.02)
Frontal	0.40 (0.08)	0.31 (0.17)	0.87 (0.50)	0.25 (0.11)	0.48 (0.16)	0.23 (0.10)	0.18 (0.11)	0.08 (0.02)
Temporal	0.27 (0.09)	0.28 (0.18)	0.44 (0.39)	0.37 (0.31)	0.23 (0.24)	0.26 (0.17)	2.00 (2.56)	0.08 (0.03)

Data in parentheses are SDs.