Accuracy of BSCTA in detecting cerebral aneurysms
| TP (No.) | TN (No.) | FP (No.) | FN (No.) | Sensitivity (%) (No.) | Specificity (%) (No.) | PPV (%) (No.) | NPV (%) (No.) | Accuracy (%) (No.) | |
|---|---|---|---|---|---|---|---|---|---|
| Per patient | 70 | 45 | 0 | 1 | 99 (70/71) | 100 (45/45) | 100 (70/70) | 98 (45/46) | 99 (115/116) |
| 95% CI | 92–100 | 92–100 | 95–100 | 89–100 | 95–100 | ||||
| Per aneurysm | 73 | 45 | 1 | 1 | 99 (73/74) | 98 (45/46) | 99 (73/74) | 98 (45/46) | 98 (118/120) |
| 95% CI | 93–100 | 89–100 | 93–100 | 89–100 | 94–100 |
Note:—TP indicates true-positive; TN, true-negative; FP, false-positive; FN, false-negative; PPV, positive predictive value; NPV, negative predictive value.