Sensitivity, specificity, PPV, and NPV of ASL-MRA, CE-MRA, and the combination of the 2 for detection of residual AVMs
| ASL-MRA | CE-MRA | Both | |
|---|---|---|---|
| Sensitivity | 88% | 77% | 100% |
| Specificity | 100% | 100% | 100% |
| PPV | 100% | 100% | 100% |
| NPV | 95% | 90% | 100% |
| Diagnostic accuracy (ROC) | 0.94 (P < .001)a | 0.89 (P = .002)a | 1 (P < .001)a |
| Agreement (κ) | 0.92 (P < .001) | 0.82 (P < .001) | 1 (P < .001) |
↵a Null hypothesis: true area = 0.5.