Kappa statistical evaluation for interobserver performance of ischemic lesion detection for 3 independent observers
| κ Coefficient | Percentage Agreement | Statistical Significance | |
|---|---|---|---|
| C-arm (n = 24) | 1.00 | 100.0% | P < .01 |
| PCT (n = 24) | 0.74 | 87.5% | P < .01 |
Note:—n = total number of perfusion maps presented to a single observer.