Early vessel signs at 2 hours
| PWI/MRA: Vessel Occlusion, 2 Hours | FLAIR 2-Hour HVS | GRE 2-Hour SVS | ||||
|---|---|---|---|---|---|---|
| No | Yes | Total | No | Yes | Total | |
| No | 20 | 0 | 20 | 14 | 6 | 20 |
| Yes | 11 | 25 | 36 | 18 | 18 | 36 |
| Total | 31 | 25 | 56 | 32 | 24 | 56 |
| Sensitivity (%) | 69.4 | 50 | ||||
| Specificity (%) | 100 | 70 | ||||
| PPV (%) | 100 | 75 | ||||
| NPV (%) | 64.5 | 43.8 | ||||
| Accuracy (%) | 80.4 | 57.1 | ||||