Models | AUC | cfNRI | IDI | PPV | NPV |
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AUC [95%CI] | P | cfNRI+ | cfNRI- | P | IDI | P | PPV | P | NPV | P |
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PT-RO | 0.79 [0.66, 0.92] | – | – | – | – | – | – | 0.93 | – | 0.64 | – |
T-RO | 0.62 [0.46, 0.79] | < 0.01 | −0.47 | −0.32 | < 0.01 | 0.22 | < 0.01 | 0.63 | < 0.01 | 0.65 | 0.92 |
PT-E | 0.61 [0.47, 0.74] | < 0.01 | −0.24 | − 0.41 | 0.02 | 0.20 | 0.01 | 0.69 | < 0.01 | 0.55 | 0.38 |
- AUC area under the curve, CI Confidence Interval, cfNRI+: movement in predicted risks introduced by changes of models in ER cases. cfNRI-: movement in predicted risks introduced by changes of models in non-ER cases. IDI Integrated Discrimination Improvement, PPV positive predictive value, NPV negative predictive value; P values of less than 0.05 (two-sided) were considered statistically significant; PT-RO peritumoral radiomics, T-RO tumoral radiomics, PT-E peritumoral enhancement