Characteristics | Favourable outcome (N=117) | Unfavourable outcome (N=15) | P value |
Patient baseline characteristics | |||
Age | 56.5±9.9 | 52.3±9.6 | 0.123 |
Gender (%) | 0.700 | ||
Male | 45 (38.5) | 5 (33.3) | |
Female | 72 (61.5) | 10 (66.7) | |
Smoking (%) | 16 (13.7) | 3 (20.0) | 0.790 |
Drinking (%) | 12 (10.3) | 2 (13.3) | ﹥0.999 |
Hypertension (%) | 55 (47.0) | 5 (33.3) | 0.317 |
Rupture (%) | 9 (7.7) | 3 (20.0) | 0.278 |
Aneurysm morphological characteristics | |||
Aneurysm size (mm) | 7.8±5.5 | 8.7±5.1 | 0.530 |
AR | 1.24±0.63 | 1.55±0.71 | 0.083 |
SR | 2.31±1.42 | 2.90±1.68 | 0.176 |
Shape (%) | 0.540 | ||
Regular | 72 (61.5) | 8 (53.3) | |
Irregular | 45 (38.5) | 7 (46.7) | |
Location (%) | 0.457 | ||
Anterior circulation | 106 (90.6) | 15 (100.0) | |
Posterior circulation | 11 (9.4) | 0 (0) | |
Sidewall/bifurcation aneurysm (%) | 0.608 | ||
Sidewall | 78 (66.7) | 9 (60.0) | |
Bifurcation | 39 (33.3) | 6 (40.0) | |
Treated-related factors | |||
Treatment therapy (%) | 0.129 | ||
Coiling | 21 (17.9) | 6 (40.0) | |
Stent-assisted coiling | 70 (59.8) | 6 (40.0) | |
Flow diverter | 26 (22.2) | 3 (20.0) | |
Packing density (%) | 23.8±16.0 | 18.5±12.1 | 0.213 |
Follow-up period (months) | 18.5±5.5 | 18.8±5.7 | 0.850 |
Haemodynamic changes | |||
The RR of velocity at the aneurysm neck (%) | 57.5±22.7 | 37.4±19.2 | 0.001 |
The RR of WSS at the aneurysm neck (%)* | 39.4 (66.1) | 33.3 (41.6) | 0.310 |
The RR of velocity at the aneurysm dome (%) | 71.5±37.3 | 67.1±23.0 | 0.654 |
The RR of WSS at the aneurysm dome | 62.6±23.1 | 59.6±24.0 | 0.648 |
*The data were expressed as median (quartile).
RR, reduction ratio; WSS, wall shear stress.