Morphological characteristics of aneurysms
| Morphologic parameter | Unruptured (n=87) | Ruptured (n=19) | p Value |
| Anterior circulation (n (%)) | 85 (97.7) | 19 (100.0) | 1.000 |
| Bifurcation (n (%)) | 37 (42.5) | 12 (63.2) | 0.102 |
| Irregular shape* (n (%)) | 35 (40.2) | 16 (84.2) | 0.001 |
| Neck width (mm) | 4.56±1.80 | 4.46±1.99 | 0.835 |
| Depth (mm)* | 5.99±6.04 | 7.02±4.33 | 0.002 |
| Maximum Size (mm)* | 7.29±6.60 | 8.34±4.78 | 0.009 |
| Flow angle (°) | 113.02±28.71 | 113.30±28.22 | 0.969 |
| Wall thickness (mm)* | 0.93±0.47 | 1.17±0.34 | 0.001 |
| Enhanced patterns (n (%)) | |||
| No* | 23 (26.4) | 0 (0.0) | 0.011 |
| Entire | 57 (65.2) | 10 (52.6) | 0.291 |
| Partial* | 7 (8.0) | 9 (47.4) | <0.001 |
| Enhanced ratio (%)* | 0.63±0.70 | 0.90±0.45 | <0.001 |
*Variables showing significant difference by univariate analysis (p<0.05).