Table 3 Diagnostic efficacy of CTA compared to DSA (gold standard)
| Â | Sensitivity (%) | Specificity (%) | Positive predictive value (%) | Negative predictive value (%) | Diagnostic accuracy (%) |
|---|---|---|---|---|---|
Per aneurysm basis | 96 | – | 100 | – | 96 |
Per patient basis for detection of aneurysms | 95.7 | 100 | 100 | 90 | 96.9 |
Per patient basis for detection of AVMs | 66.7 | 100 | 100 | 92.9 | 93.8 |
overall | 96.6 | 100 | 100 | 75 | 96.9 |