Test–Retest Variability
Region | VT of DC* (n = 8) | VT of IC† (n = 8) | VT of all subjects (n = 16) | Brain uptake (n = 16) | ||||||||||||
PD (%) | Absolute PD (%) | ICC | PD (%) | Absolute PD (%) | ICC | PD (%) | Absolute PD (%) | ICC of MABs | ICC of HABs | ICC of all | PD (%) | Absolute PD (%) | ICC of MABs | ICC of HABs | ICC of all | |
Midbrain | 2.8 ± 14.5 | 12.4 | 0.96 | −1.5 ± 15.6 | 11.8 | 0.86 | 0.6 ± 14.8 | 12.1 | 0.41 | 0.91 | 0.93 | −2.5 ± 11.5 | 10.1 | 0.72 | 0.39 | 0.71 |
Thalamus | 11.0 ± 10.5 | 12.8 | 0.94 | −12.3 ± 13.3 | 12.7 | 0.86 | −0.7 ± 16.7 | 12.8 | 0.68 | 0.84 | 0.90 | −4.7 ± 14.6 | 11.6 | 0.74 | 0.53 | 0.71 |
Pons | −2.3 ± 14.2 | 9.6 | 0.90 | −8.2 ± 23.8 | 18.9 | 0.72 | −5.3 ± 19.2 | 14.2 | 0.54 | 0.60 | 0.82 | −2.7 ± 12.4 | 11.0 | 0.81 | 0.52 | 0.77 |
Pallidostriatum | 5.8 ± 21.9 | 17.6 | 0.85 | −7.0 ± 19.0 | 14.1 | 0.87 | −0.6 ± 20.9 | 15.8 | 0.22 | 0.79 | 0.85 | −2.2 ± 13.7 | 11.1 | 0.79 | 0.50 | 0.74 |
Hippocampus | 14.9 ± 17.3 | 15.7 | 0.75 | −5.9 ± 11.8 | 9.7 | 0.91 | 4.5 ± 17.9 | 12.7 | 0.58 | 0.78 | 0.83 | −2.0 ± 15.2 | 12.3 | 0.57 | 0.23 | 0.56 |
Cerebellum | 9.6 ± 9.4 | 10.2 | 0.94 | −4.9 ± 10.0 | 8.2 | 0.96 | 2.3 ± 12.0 | 9.2 | 0.76 | 0.88 | 0.95 | −1.5 ± 9.4 | 7.8 | 0.90 | 0.45 | 0.87 |
Neocortex | 5.8 ± 12.6 | 10.2 | 0.92 | −3.2 ± 12.8 | 10.5 | 0.92 | 1.3 ± 13.2 | 10.4 | 0.88 | 0.79 | 0.92 | −2.8 ± 9.6 | 8.5 | 0.91 | 0.57 | 0.85 |