Sensitivity and specificity of the brain imaging coverage to assess PCT penumbra / (infarct + penumbra) ratio >20% compared with 80-mm z-axis coverage
| Coverage (mm) | Sensitivity (%) | Specificity (%) |
|---|---|---|
| 5 | 95 | 91 |
| 10 | 95 | 91 |
| 15 | 95 | 91 |
| 20 | 95 | 91 |
| 25 | 95 | 100 |
| 30 | 98 | 91 |
| 35 | 95 | 100 |
| 40 | 98 | 100 |
| 45 | 98 | 100 |
| 50 | 100 | 100 |
| 55 | 100 | 100 |
| 60 | 100 | 100 |
| 65 | 100 | 100 |
| 70 | 100 | 100 |
| 75 | 100 | 100 |
| 80 (criterion standard) | 100 | 100 |
Note:—Bold numbers indicate the PCT coverages for which a 100% sensitivity and a 100% specificity are achieved.