Table 5.
The performance metrics of radiomic signature, clinical model, and radiomics-clinical nomogram
| Index | Primary cohort | Validation cohort | ||||
|---|---|---|---|---|---|---|
| Radiomic signature | Clinical model | Radiomics-clinical nomogram | Radiomic signature | Clinical model | Radiomics-clinical nomogram | |
| AUC | 0.96 | 0.77 | 0.82 | 0.85 | 0.38 | 0.61 |
| ACC | 93.41% | 67.03% | 89.01% | 82.35% | 61.76% | 64.71% |
| TPR | 98.48% | 90.91% | 95.45% | 91.30% | 91.30% | 69.57% |
| TNR | 80.00% | 4.00% | 72.00% | 63.64% | 0.00% | 54.55% |
| PPV | 92.75% | 71.43% | 90.00% | 84.00% | 65.63% | 76.19% |
| NPV | 90.91% | 14.29% | 85.71% | 77.78% | 0.00% | 46.15% |
AUC area under receiver operating characteristic curve, ACC accuracy, TPR true positive rate (sensitivity), TNR true negative rate (specificity), PPV positive predictive value, NPV negative prediction value