Table 3.
Pooled sensitivity, specificity, positive and negative likelihood ratio’s, diagnostic odds ratio’s and funnel plot’s asymmetry for CTA vs DSA per category
| Mean value (95% CI) | |||||||
|---|---|---|---|---|---|---|---|
| Category | No. of studies | Sensitivity (%) | Specificity (%) | Positive LRϕ (%) | Negative LRϕ (%) | DOR* | Funnel plot asymmetry (p value) |
| Any BCI [6, 20, 23–25, 34, 36, 37] | 8 | 64 [0.53–0.74] | 0.95 [0.87–0.98] | 11.8 [5.6–24.9] | 0.38 [0.30–0.49] | 31 [17–56] | 0.914 |
| BCVIcarotid [6, 20, 23–25, 35, 37] | 7 | 70 [52–84] | 98 [94–99] | 35.4 [10.3–121.3] | 0.31 [0.17–0.53] | 116 [23–583] | 0.187 |
| BCVIvertebral [6, 20, 23–25, 35, 37] | 7 | 70 [55–82] | 99 [0.94 –1.00] | 47.8 [10.3–221.8] | 0.30 [0.19–0.48] | 158 [26–962] | 0.474 |
*Diagnostic odds ratio, ϕLikelihood ratio, BCVI blunt cerebrovascular injury