Table 2 Test-retest variability (%) of various (R)-[11C]verapamil rate constants derived from filtered back projection reconstructed data
From: Reproducibility of quantitative (R)-[11C]verapamil studies
TRT (%) | 1T2k60 | 1T2k60 | 1T2k10 | 1T2k10 | 2T4kVTnsfix | 2T4kVTnsfix | 2T4kVTnsfix | 2T4kVTnsfix |
|---|---|---|---|---|---|---|---|---|
K 1 | k 2 | V T | k 2 | K 1 | k 2 | k 3 | k 4 | |
Global | 9.1 ± 7.0 | 10.0 ± 6.0 | 5.9 ± 5.9 | 9.2 ± 5.1 | 9.1 ± 7.0 | 19.2 ± 27.1 | 66.2 ± 56.4 | 60.6 ± 45.0 |
Frontal | 10.2 ± 6.7 | 10.3 ± 5.7 | 6.9 ± 6.3 | 9.2 ± 5.7 | 10.0 ± 6.4 | 19.6 ± 27.1 | 63.3 ± 56.1 | 58.5 ± 45.9 |
Parietal | 9.4 ± 7.1 | 11.2 ± 6.0 | 6.9 ± 5.3 | 8.1 ± 7.1 | 9.2 ± 7.5 | 18.4 ± 27.0 | 63.1 ± 55.8 | 61.0 ± 45.3 |
Temporal | 8.0 ± 6.4 | 8.9 ± 6.5 | 6.8 ± 5.3 | 11.3 ± 5.9 | 10.1 ± 6.3 | 20.1 ± 26.5 | 75.7 ± 57.3 | 65.7 ± 47.9 |
Occipital | 9.7 ± 8.1 | 10.6 ± 5.0 | 6.6 ± 6.5 | 8.3 ± 4.9 | 8.3 ± 9.5 | 19.3 ± 28.8 | 68.8 ± 66.1 | 66.8 ± 59.1 |
Posterior cingulate | 9.9 ± 10.3 | 9.5 ± 7.8 | 14.1 ± 14.4 | 16.8 ± 14.1 | 9.8 ± 8.3 | 21.1 ± 25.8 | 77.9 ± 65.4 | 73.7 ± 55.1 |
Anterior cingulate | 9.7 ± 6.7 | 11.6 ± 6.6 | 16.7 ± 15.7 | 20.7 ± 18.1 | 10.2 ± 6.3 | 17.8 ± 25.5 | 71.0 ± 65.9 | 71.6 ± 54.5 |
Medial temporal | 10.6 ± 9.3 | 11.1 ± 9.5 | 16.8 ± 12.6 | 25.1 ± 15.3 | 13.0 ± 8.1 | 22.7 ± 27.6 | 69.7 ± 39.5 | 60.6 ± 40.3 |
Cerebellum | 10.9 ± 7.6 | 10.3 ± 6.7 | 6.8 ± 4.8 | 7.2 ± 5.7 | 10.2 ± 7.9 | 18.6 ± 27.0 | 58.1 ± 55.6 | 61.4 ± 44.1 |