Univariate analysis between recanalization and non-recanalization groups
| Characteristics | Recanalization (n=40) | Non-recanalization (n=243) | p Value |
|---|---|---|---|
| Patient baseline characteristics (n, %) | |||
| Age (mean±SD) | 51.7±8.9 | 53.6±9.8 | 0.582 |
| Male sex | 12 (30) | 66 (27.2) | 0.71 |
| Smoking | 9 (22.5) | 55 (22.6) | 0.985 |
| Hypertension | 19 (47.5) | 117 (48.1) | 0.939 |
| Drinking | 9 (22.5) | 50 (20.6) | 0.781 |
| Aneurysm morphological characteristics (n, %) | |||
| Large aneurysm | 16 (40) | 38 (15.6) | <0.001* |
| Wide neck | 23 (57.5) | 103 (42.4) | 0.075 |
| Ruptured aneurysm | 10 (25) | 50 (20.6) | 0.526 |
| Anterior circulation | 37 (92.5) | 217 (89.3) | 0.736 |
| Sidewall aneurysm | 30 (75) | 178 (73.3) | 0.816 |
| Treatment-related factors (n, %) | |||
| Initial angiographic result | 0.114 | ||
| Complete obliteration | 16 (40) | 140 (57.6) | |
| Residual neck | 21 (52.5) | 75 (30.9) | |
| Residual aneurysm | 3 (7.5) | 28 (11.5) | |
| Stent-assisted coiling | 24 (60) | 173 (71.2) | 0.154 |
| Packing density >24% | 22 (55) | 159 (65.4) | 0.203 |
| Interval of follow-up >1 year | 13 (32.5) | 39 (16.0) | 0.013* |
| Hemodynamic changes (median, IQR) | |||
| RR of velocity on the neck plane | 19.5 (−7.7–27.3) | 30.2 (13.1–43.8) | <0.001* |
| RR of velocity inside the aneurysm | 71.7 (60.9–80.8) | 73.3 (59.1–81.3) | 0.869 |
| RR of WSS on the neck wall | 6.5 (−10.9–25.6) | 22.7 (4.7–41.5) | <0.001* |
| RR of WSS on the whole aneurysm wall | 62.6 (49.1–71.7) | 70.5 (53.6–78.7) | 0.026* |
*p<0.05.
RR, reduction ratio; WSS, wall shear stress.