Table 2

Reproducibility in normal volunteers (n=8 pairs of scans, mean scanning interval 39 (28) months)

Structure (method of analysis)SDBSDW (% normal mean)R (%)
Putamen (Ki)0.00200.0009 (9)82
Caudate (Ki)0.00220.0011 (10)80
Total striatum (Ki)0.00160.0008 (11)68
Putamen (ratio)0.350.14 (6)86
Caudate (ratio)0.280.16 (7)76