Sensitivity, specificity, PPV, and NPV for rCBV, ADC, and their combination in the differentiation of high-grade from low-grade gliomas
| Sensitivity | Specificity | PPV | NPV | |
|---|---|---|---|---|
| Max rCBV ≥ 1.74 | 94.4% | 50.0% | 88% | 69.6% |
| Min ADC ≤ 1.185 | 97.6% | 53.1% | 89% | 85% |
| Max rCBV ≥ 1.74 OR Min ADC ≤ 1.185 | 98.4% | 31.3% | 84.7% | 83.3% |
| Max rCBV ≥ 1.74 AND Min ADC ≤ 1.185 | 93.5% | 71.9% | 92.8% | 74.2% |
Note:—PPV indicates positive predictive value; NPV, negative predictive value; Max, maximum; Min, minimum.