Characteristic MR imaging findings for predicting malignant dural-based tumors
| Variables | Sensitivity | Specificity | PPV | NPV | Accuracy |
|---|---|---|---|---|---|
| Lack of dural tail | 19.4% | 98.0% | 75.0% | 80.0% | 79.7% |
| Cortical breakthrough | 67.7% | 95.1% | 80.8% | 90.7% | 88.7% |
| Leptomeningeal enhancement | 32.3% | 100.0% | 100.0% | 82.9% | 84.2% |
| Heterogeneous enhancement on T1WI | 71.0% | 73.5% | 44.9% | 89.3% | 72.9% |
| Hypointense signal on T2WI | 53.3% | 86.2% | 66.7% | 78.1% | 75.0% |