Table 4.
The ROC curves of IC and nIC values
| ROC | ICAP | ICPP | nICAP | nICPP |
|---|---|---|---|---|
| Cancer | ||||
| AUC | 0.745 | 0.662 | 0.584 | 0.923 |
| sensitivity | 95.40% | 98.85% | 96.55% | 91.95% |
| specificity | 58.33% | 43.52% | 37.04% | 87.96% |
| Optimum cutoff values | 10.343 | 14.913 | 0.089 | 0.364 |
| Youden index | 0.537 | 0.424 | 0.336 | 0.799 |
| Poorly differentiated | ||||
| AUC | 0.756 | 0.851 | 0. 919 | 0.684 |
| sensitivity | 53.49% | 69.77% | 79.07% | 60.47% |
| specificity | 93.18% | 90.91% | 97.73% | 79.55% |
| Optimum cutoff values | 14.460 | 20.461 | 0.125 | 0.431 |
| Youden index | 0.467 | 0.607 | 0.768 | 0.400 |
Abbreviations: ROC Receiver operating characteristic curves, AUC area under the curve, ICAP arterial phase iodine concentration, ICPP portal venous phase iodine concentration, nICAP normalized arterial phase iodine concentration, nICPP normalized portal venous phase iodine concentration