Receiver Operating Characteristic Curve Analysis of 18F-FDOPA PET Diagnostic Criteria for Differentiating RPBM from LDRI
| Diagnostic criterion | Area under curve | Confidence interval | Threshold for RPBM | Sensitivity* | Specificity* | Positive predictive value* | Negative predictive value* | Accuracy* |
| SUVmax | 0.822 | 0.732–0.913 | ≥2.74 | 68.8 (22/32) | 68.6 (35/51) | 57.9 (22/38) | 77.8 (35/45) | 68.7 |
| SUVmean | 0.822 | 0.733–0.911 | ≥2.3 | 68.8 (22/32) | 70.6 (36/51) | 59.5 (22/37) | 78.3 (36/46) | 69.9 |
| L/Smax | 0.837 | 0.753–0.921 | ≥0.86 | 75.0 (24/32) | 72.5 (37/51) | 63.2 (24/38) | 82.2 (37/45) | 73.5 |
| L/Smean | 0.823 | 0.736–0.910 | ≥0.95 | 68.8 (22/32) | 76.5 (39/51) | 64.7 (22/34) | 79.6 (39/49) | 73.5 |
| L/Nmax | 0.837 | 0.753–0.922 | ≥2.02 | 81.3 (26/32) | 72.5 (37/51) | 65.0 (26/40) | 86.0 (37/43) | 75.9 |
| L/Nmean | 0.829 | 0.743–0.916 | ≥1.70 | 81.3 (26/32) | 72.5 (37/51) | 65.0 (26/40) | 86.0 (37/43) | 75.9 |
| Visual scale | 0.892 | 0.824–0.960 | ≥2 | 81.3 (26/32) | 84.3 (43/51) | 76.5 (26/34) | 87.8 (43/49) | 83.1 |
↵* Reported as percentage.