Prediction of LVO by the Viz LVO system
| System LVO Detection | Sensitivity | 95% CI | Specificity | 95% CI | NPV | 95% CI | PPV | 95% CI | Accuracy | 95% CI |
|---|---|---|---|---|---|---|---|---|---|---|
| Entire cohort (n = 1167) | 0.81 | 0.74–0.91 | 0.96 | 0.95–0.97 | 0.99 | 0.98–0.99 | 0.65 | 0.55–0.74 | 0.94 | 0.92–0.96 |
| Stroke protocol subgroup (n = 404) | 0.82 | 0.71–0.89 | 0.90 | 0.86–0.93 | 0.96 | 0.93–0.98 | 0.64 | 0.53–0.73 | 0.89 | 0.86–0.94 |
Note:—NPV indicates negative predictive value.