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| Variable | PET/CT | Nomogram | |
|---|---|---|---|
| Training cohort | Validation cohort | ||
| Sensitivity | 60.5% | 70.5% | 73.1% |
| Specificity | 78.2% | 94.4% | 86.4% |
| Positive predictive value (PPV) | 56.1% | 93.9% | 86.4% |
| Negative predictive value (NPV) | 81.1% | 72.3% | 73.1% |
| Accuracy | 72.6% | 81.3% | 79.2% |
PET/CT, positron emission tomography/computed tomography; PLN, pelvic lymph node.
