Table 2.
Comparison of test characteristics of 2D-DSA, 3D-DSA, and TOF-MRA in the detection of residual flow in the aneurysm (values with 95 % CIs in parentheses)
| Characteristic | 2D-DSA | 3D-DSA | TOF-MRA |
|---|---|---|---|
| Sensitivity (%) | 84.6 (65.1–95.5) | 92.3 (74.8–98.8) | 84.6 (65.1–95.5) |
| Specificity (%) | 93.5 (82.1–98.6) | 97.8 (88.4–99.6) | 91.3 (79.2–97.5) |
| PPV (%) | 88.0 (68.8–97.3) | 96.0 (79.6–99.3) | 84.6 (65.1–95.5) |
| NPV (%) | 91.5 (79.6–97.6) | 95.7 (85.4–99.4) | 91.3 (79.2–97.5) |
| LR+ | 13.0 (10.8–15.5) | 42.5 (37.70–47.8) | 9.7 (8.1–11.7) |
| LR− | 0.16 (0.04–0.70) | 0.08 (0.01–0.80) | 0.17 (0.05–0.60) |
| Accuracy (%) | 90.3 (83.3–97.1) | 95.8 (91.2–100.0) | 88.9 (81.6–96.2) |
| AUC | 0.89 (0.80–0.95) | 0.95 (0.87–0.99) | 0.88 (0.78–0.94) |
PPV positive predictive value, NPV negative predictive value, LR + positive likelihood ratio, LR − negative likelihood ratio, AUC area under the receiver operating characteristic curve