Table 3 Evaluation performance of 18F-FDG PET/CT parameters based on ROC
Parameter | Cutoff | Area under curve | Specificity | Sensitivity | PPV | NPV | Accuracy |
|---|---|---|---|---|---|---|---|
Maximum SUVmax | 9.12 | 0.98 | 87.5% | 100% | 100% | 95.2% | 96.4% |
Average SUVmax | 6.94 | 0.96 | 100% | 80.0% | 66.7% | 100% | 85.7% |
Sum SUVmax | 9.22 | 0.95 | 100% | 85.0% | 72.7% | 100% | 89.3% |
Maximum MTV | 4.89 | 0.91 | 87.5% | 90.0% | 77.8% | 94.7% | 89.3% |
Average MTV | 2.23 | 0.92 | 100% | 75% | 61.5% | 100% | 82.1% |
Sum MTV | 2.99 | 0.92 | 100% | 75% | 61.5% | 100% | 82.1% |
Maximum TLG | 18.1 | 0.94 | 100% | 80% | 66.7% | 100% | 85.7% |
Average TLG | 16.13 | 0.94 | 100% | 90% | 80% | 100% | 92.9% |
Sum TLG | 22.38 | 0.95 | 100% | 85% | 72.7% | 100% | 89.3% |