Sensitivity and specificity of ASL CBF map readinga
| Cohort | |||
|---|---|---|---|
| TIAb | Control | ||
| ASL positivec | 82 | 10 | 92 |
| ASL negatived | 65 | 98 | 163 |
| 147 | 108 | ||
| Sensitivity, 55.78% | Specificity, 90.73% | ||
↵a Based on pooled data from 3 independent observers, n = 49 for TIA cohort and n = 36 for control cohort, with scores of ≥2 being defined as “positive” readings indicating recognizable ischemic lesions (82/147 = 49 × 3 for the TIA cohort, and 10/108 = 36 × 3 for the control cohort).
↵b Diagnosis of TIA was made clinically without ASL imaging.
↵c Defined as a reading score of 2 or 3.
↵d Defined as a reading score of 1.