Cutoff values of aneurysm variables according to the ROC analysis
| Morphologic Variables | AUC | Threshold Value | Sensitivity (%) | Specificity (%) | 95% Confidence Intervals | P Value |
|---|---|---|---|---|---|---|
| Neck area | 0.908 | 18.35 | 78 | 79 | 0.800–1.000 | .000 |
| Volume | 0.990 | 256 | 89 | 96 | 0.966–1.000 | .000 |
| Volume-to-neck area | 0.870 | 13.67 | 89 | 78 | 0.736–1.000 | .001 |
| Aspect ratio | 0.691 | 1.47 | 67 | 65 | 0.486–0.895 | .098 |
| Size ratio | 0.908 | 2.16 | 89 | 78 | 0.807–1.000 | .000 |
| Morphologic index | 0.990 | 4343 | 89 | 91 | 0.965–1.000 | .000 |
Note:—AUC indicates area under curve; ROC, receiver operating characteristic.