Cutoff value, sensitivity, specificity, and AUC of imaging parameters in the differentiation of astroglioma with and without IDH1 R132H mutations
| Cutoff Value | Sensitivity | Specificity | AUC | |
|---|---|---|---|---|
| Maximal FA | ||||
| Groups 1 and 2 | 0.18 | 90.90% | 96.00% | 0.92 |
| Groups 3 and 4 | 0.27 | 81.80% | 83.30% | 0.80 |
| Ratio of maximal FA | ||||
| Groups 1 and 2 | 0.25 | 90.90% | 96.00% | 0.92 |
| Groups 3 and 4 | 0.37 | 81.80% | 83.30% | 0.82 |
| Minimal ADC (×10–3 mm2/s) | ||||
| Groups 1 and 2 | 1.07 | 100.00% | 90.90% | 0.94 |
| Groups 3 and 4 | 0.99 | 75.00% | 81.80% | 0.76 |
| Groups 5 and 6 | 0.81 | 53.50% | 90.00% | 0.66 |
| Ratio of minimal ADC | ||||
| Groups 1 and 2 | 1.47 | 100.00% | 81.80% | 0.93 |
| Groups 3 and 4 | 1.31 | 91.70% | 81.80% | 0.83 |
| Groups 5 and 6 | 1.10 | 53.50% | 90.00% | 0.70 |