TABLE 4:
Findings at CTA versus those at DSA and those surgery (reader 2)
| CTA | DSA and Surgery |
||
|---|---|---|---|
| Aneurysm not present | Aneurysm present | Total | |
| Aneurysm not present | 26 | 0 | 26 |
| Aneurysm present | 0 | 41 | 41 |
| Total | 26 | 41 | 67 |
Note.—97.5% confidence interval (all one-sided), sensitivity = 41/41 = 1.0 (.914, 1.0), specificity = 26/26 = 1.0 (.868, 1.0), positive predictive value = 41/41 = 1.0 (.914, 1.0), negative predictive value = 26/26 = 1.0 (.868, 1.0), accuracy = 67/67 = 1.0 (.946, 1.0), kappa ± SD = 1.0 ± .1221.