Analysis | Cutoff value | AUC | Sensitivity (%) | Specificity (%) | Youden index (%) | PPV (%) | NPV (%) |
ROC quantitative | |||||||
68Ga-Alfatide II | SUVmax < 2.75 | 0.9011 | 76.92 | 90.48 | 67.40 | ||
SUVmean < 2.15 | 0.8535 | 84.62 | 76.19 | 60.81 | |||
18F-FDG | SUVmax < 7.30 | 0.6612 | 46.15 | 85.71 | 31.86 | ||
SUVmean < 4.75 | 0.6502 | 53.85 | 80.95 | 34.80 | |||
Visual analysis | |||||||
68Ga-Alfatide II | 85.71 | 84.62 | 90.00 | 78.57 | |||
18F-FDG | 90.48 | 53.85 | 76.00 | 77.78 |
PPV = positive predictive value; NPV = negative predictive value.