Data Based on Results in All Evaluable Test–Retest Subjects (n = 7)
| Total gray matter | Posterior cingulate cortex | ||||
| Model | Parameter | TRV (%) | ICC | TRV (%) | ICC |
| 1 tissue compartment | DVR | 3.8 ± 1.5 | 0.99 | 6.4 ± 3.7 | 0.98 |
| 2 tissue compartments | DVR | 3.1 ± 2.4 | 0.99 | 6.9 ± 5.5 | 0.96 |
| Logan | DVR | 4.1 ± 2.8 | 0.98 | 7.6 ± 4.9 | 0.95 |
| SRTM | DVR | 4.7 ± 4.5 | 0.97 | 11.2 ± 7.9 | 0.88 |
| Reference Logan | DVR | 3.7 ± 1.9 | 0.98 | 5.8 ± 4.3 | 0.96 |
| Peak ratio (21–33) | SUVR | 6.0 ± 3.4 | 0.96 | 10.2 ± 5.9 | 0.97 |
| Late ratio (51–63) | SUVR | 7.5 ± 6.5 | 0.95 | 7.8 ± 5.3 | 0.97 |
Data are mean ± SD for test–retest variability (TRV) and intraclass correlation coefficient (ICC).