Table 8.
ROC curve analysis of different parameters for distinguishing IDHmut/1p19q− tumors and IDHmut/1p19q+ tumors.
| Parameter | ROI | AUC | Specificity (%) | Sensitivity (%) | Cutoff value | p value |
|---|---|---|---|---|---|---|
| ADCmean | ROI-1 | 0.715 | 55.6 | 95.5 | 1546.32 | 0.151 |
| ROI-2 | 0.758 | 72.2 | 81.8 | 1387.97 | ||
|
| ||||||
| P5 ADC | ROI-1 | 0.735 | 50.0 | 100.0 | 1108.00 | 1.00 |
| ROI-2 | 0.735 | 44.4 | 100.0 | 1110.00 | ||
|
| ||||||
| P10 ADC | ROI-1 | 0.749 | 50.0 | 100.0 | 1177.50 | 1.00 |
| ROI-2 | 0.749 | 50.0 | 100.0 | 1191.00 | ||
|
| ||||||
| P25ADC | ROI-1 | 0.766 | 66.7 | 86.4 | 1246.75 | 1.00 |
| ROI-2 | 0.766 | 50.0 | 100.0 | 1345.00 | ||
|
| ||||||
| P50 ADC | ROI-1 | 0.763 | 55.6 | 100.0 | 1581.25 | 1.00 |
| ROI-2 | 0.763 | 67.7 | 86.4 | 1384.00 | ||
|
| ||||||
| P75 ADC | ROI-1 | 0.710 | 50.0 | 100.0 | 1788.50 | 1.00 |
| ROI-2 | 0.710 | 66.7 | 81.8 | 1540.00 | ||
|
| ||||||
| P90 ADC | ROI-1 | 0.669 | 44.4 | 90.9 | 1984.00 | 1.00 |
| ROI-2 | 0.669 | 55.6 | 90.9 | 1812.50 | ||
|
| ||||||
| P95ADC | ROI-1 | — | — | — | — | — |
| ROI-2 | 0.689 | 61.1 | 86.4 | 1979.00 | ||
|
| ||||||
| ADCmode | ROI-1 | 0.784 | 61.1 | 90.9 | 1448.75 | 0.729 |
| ROI-2 | 0.787 | 61.1 | 90.9 | 1450.00 | ||
|
| ||||||
| Skewness | ROI-1 | 0.747 | 100.0 | 44.4 | -0.164 | 0.178 |
| ROI-2 | 0.821 | 81.8 | 77.8 | 0.186 | ||
|
| ||||||
| Kurtosis | ROI-1 | — | — | — | — | — |
| ROI-2 | 0.694 | 86.4 | 55.6 | -0.349 | ||