Diagnostic performance of standard CTA and timing-invariant CTA for assessment of artery occlusion in the various territoriesa
| Territory | Occlusions | Standard CTA | Timing-Invariant CTA | ||
|---|---|---|---|---|---|
| Sensitivity | Specificity | Sensitivity | Specificity | ||
| Overall | 47 | 96% (90–100) | 100% (99–100) | 98% (94–100) | 100% (100–100) |
| Internal carotid artery | 9 | 100% (100–100) | 100% (100–100) | 100% (100–100) | 100% (100–100) |
| Anterior cerebral artery | 2 | 100% (100–100) | 99% (98–100) | 100% (100–100) | 99% (98–100) |
| Middle cerebral artery | 33 | 94% (86–100) | 100% (100–100) | 100% (100–100) | 99% (98–100) |
| Segment 1 (M1) | 25 | 100% (100–100) | 100% (100–100) | 100% (100–100) | 100% (100–100) |
| Segment 2+ (M2+) | 8 | 75% (45–100) | 100% (100–100) | 100% (100–100) | 100% (100–100) |
| Basilar artery | 1 | 100% (100–100) | 100% (100–100) | 100% (100–100) | 100% (100–100) |
| Posterior cerebral artery | 2 | 100% (100–100) | 99% (98–100) | 50% (0–100) | 100% (100–100) |
↵a Data in parentheses are 95% confidence intervals.