TABLE 2.

Rate Constants and Calculated V_T for 2-Parameter Compartment Model and Logan Graphic Analysis

Region	Mean ± SD				Minimum scan duration (min)
	K1 (mL/min/g)	k2 (1/min)	VT (mL/g)	VT (graphic)
Cerebellum	0.77 ± 0.46	0.12 ± 0.07	6.3 ± 1.6	4.5 ± 1.7	25
Cingulate cortex	0.65 ± 0.2	0.06 ± 0.02	10.6 ± 2.8	6.9 ± 1.6	35
Dorsal raphe	0.58 ± 0.17	0.02 ± 0.01	31.2 ± 11.9	17.7 ± 6.7	35
Amygdalae	0.48 ± 0.17	0.03 ± 0.01	15.3 ± 4.6	9.3 ± 2.2	65
Caudate nucleus	0.84 ± 0.29	0.05 ± 0.02	17.7 ± 4.8	11.2 ± 2.7	35
Frontal cortex	0.77 ± 0.42	0.09 ± 0.05	9.1 ± 3.0	5.9 ± 1.5	35
Occipital cortex	0.65 ± 0.32	0.07 ± 0.03	9.0 ± 3.0	5.9 ± 1.9	45
Pulvinar thalamus	0.73 ± 0.22	0.03 ± 0.01	23.3 ± 6.2	14.4 ± 3.9	35
Putamen	0.89 ± 0.33	0.05 ± 0.02	19.0 ± 5.1	12.0 ± 2.5	35
Magnus raphe	0.55 ± 0.19	0.03 ± 0.01	17.6 ± 5.7	10.7 ± 3.3	35
Hypothalamus	0.65 ± 0.21	0.02 ± 0.01	28.4 ± 8.9	17.8 ± 6.8	45
Midbrain	0.61 ± 0.17	0.02 ± 0.00	29.4 ± 9.9	17.2 ± 5.5	45
Pons	0.56 ± 0.24	0.06 ± 0.02	9.6 ± 3.3	6.1 ± 2.2	35
Pallidus raphe	0.52 ± 0.16	0.03 ± 0.01	17.1 ± 6.3	10.5 ± 4.1	45