Table 2 Univariate and multivariate regression models for rupture of anterior communicating (ACoA) aneurysms.
Variables | Univariable | Multivariable | ||
|---|---|---|---|---|
OR (95% CI) | P value | OR (95% CI) | P value | |
Intrinsic morphological parameters | ||||
Projection | ||||
Anterior (Ref) | – | – | ||
Posterior | 0.95 (0.44–2.05) | 0.90 | ||
Superior | 0.52 (0.23–1.18) | 0.12 | ||
Inferior | 0.43 (0.17–1.04) | 0.06 | ||
Location | ||||
Medial (Ref) | – | – | ||
Left | 1.23 (0.64–2.4) | 0.53 | ||
Right | 1.45 (0.74–2.8) | 0.28 | ||
Irregularity | 5.84 (3.88–8.80) | < 0.01 | ||
Daughter dome | 13.2 (8.52–20.4) | < 0.01 | 21.4 (10.6–43.1) | < 0.01 |
Maximum height (mm) | 1.17 (1.09–1.25) | < 0.01 | ||
Perpendicular height (mm) | 1.17 (1.08–1.26) | < 0.01 | ||
Neck diameter (mm) | 0.74 (0.64–0.85) | < 0.01 | 0.55 (0.42–0.71) | < 0.01 |
Width (mm) | 1.00 (0.93–1.08) | 0.94 | ||
Height/width ratio | 13.2 (6.69–26.2) | < 0.01 | ||
Aspect ratio | 6.75 (4.39–10.4) | < 0.01 | 3.57 (2.05–6.24) | < 0.01 |
Transitional morphological parameters | ||||
Size ratio | 2.73 (1.78–4.17) | < 0.01 | ||
Flow angle | 1.02 (1.02–1.03) | < 0.01 | 1.03 (1.02–1.05) | < 0.01 |
Extrinsic morphological parameters | ||||
Pre-aneurysm A1 length (mm) | 0.97 (0.90–1.05) | 0.47 | ||
ACoA diameter (mm) | 0.84 (0.54–1.29) | 0.42 | ||
Ipsilateral A1 diameter (mm) | 0.43 (0.27–0.69) | < 0.01 | ||
Ipsilateral A2 diameter (mm) | 0.56 (0.36–0.86) | < 0.01 | ||
Contralateral A1 diameter (mm) | 0.91 (0.69–1.20) | 0.50 | ||
Contralateral A2 diameter (mm) | 0.70 (0.43–1.12) | 0.13 | ||
Hypoplastic A1 | 0.85 (0.60–1.23) | 0.39 | ||
Aplastic A1 | 0.94 (0.62–1.44) | 0.79 | ||
Ipsilateral A1-A2 angle | 1.01 (1.00–1.02) | < 0.01 | ||
Ipsilateral A1-ACoA angle | 0.99 (0.99–1.00) | 0.22 | ||
Ipsilateral A2-ACoA angle | 0.99 (0.98–1.00) | 0.02 | 0.98 (0.97–1.00) | 0.01 |
Contralateral A1-A2 angle | 1.01 (1.00–1.02) | 0.04 | 0.99 (0.98–1.00) | 0.06 |
Contralateral A1-ACoA angle | 1.00 (0.99–1.01) | 0.95 | ||
Contralateral A2-ACoA angle | 0.99 (0.98–1.00) | 0.03 | ||
