Table 1.

[¹¹C]GSK189254 V_T estimates from test scans and test retest variability (n = 3).

	Test VT			TRV
	Mean	%SD	%SE	Mean	SD
Putamen	47	14	5.0	−23	11
Caudate	37	16	6.8	−26	15
Anterior cingulate	28	8.4	4.5	−18	5.7
Insula	24	9.3	3.4	−19	5.6
Amygdala	23	13	5.6	−19	8.3
Thalamus	18	12	3.4	−14	6.3
Frontal cortex	16	10	3.5	−16	5.5
Parietal cortex	14	2.8	2.9	−16	5.0
Hippocampus	14	2.6	3.4	−12	6.6
Occipital cortex	12	1.2	2.8	−16	4.3
Cerebellum	12	10	2.9	−11	8.6
Central semiovale	9.4	25	7.1	−13	16

TRV: test–retest variability: $2\times (V_{\text{T}}^{\text{Retest}}-V_{\text{T}}^{\text{Test}})/(V_{\text{T}}^{\text{Retest}}+V_{\text{T}}^{\text{Test}})$.