Table 4.
Test characteristics of proximal cerebral artery occlusion on CTA predicting need for neurointervention
| Sensitivity (95% CI) |
Specificity | PPV | NPV | |
|---|---|---|---|---|
| Any neuro-intervention* | 82% (59-94%) |
71% (64-77%) |
25% (16-37%) |
97% (92-99%) |
| IA thrombolysis | 86% (49-97%) |
67% (66-67%) |
8% (5-9%) |
99% (97-99%) |
| Mechanical IA procedure | 100% (79-100%) |
70% (69-70%) |
19% (15-19%) |
100% (98-100%) |
IA, intra-arterial; PPV, positive predictive value; NPV, negative predictive value.
*Any neurointervention includes IA thrombolysis, IA mechanical clot retrieval or manipulation, or any neurosurgical procedure.