Table 3 ROC analysis of PWI parameters for the differential diagnosis between medulloblastoma and ependymoma
Cut-off point | AUC | Sensitivity | Specificity | 95% CI | |
|---|---|---|---|---|---|
PWI parameters | |||||
Relative enhancement (%) | 27.35 | 0.875 | 0.727 | 1.000 | 0.730–1.000 |
Maximum enhancement | 100.25 | 0.943 | 0.909 | 1.000 | 0.853–1.000 |
Maximum relative enhancement (%) | 7.26 | 0.898 | 0.773 | 1.000 | 0.770–1.000 |
Time to peak (s) | 106.14 | 0.886 | 0.909 | 0.750 | 0.718–1.000 |
Area under the curve | 1591.18 | 0.864 | 0.909 | 0.750 | 0.694–1.000 |
PWI ratios | |||||
Maximum enhancement ratio | 4.04 | 0.886 | 0.682 | 1.000 | 0.734–1.000 |
Maximum relative enhancement ratio (%) | 3.37 | 0.875 | 0.727 | 1.000 | 0.726–1.000 |