Characteristics | Favourable outcome (N=154) | Unfavourable outcome (N=23) | P value |
Patient baseline characteristics | |||
Age | 55.9±10.2 | 52.8±10.3 | 0.170 |
Gender (%) | 0.551 | ||
Male | 57 (37.0) | 10 (43.5) | |
Female | 97 (63.0) | 13 (56.5) | |
Smoking (%) | 23 (14.9) | 6 (26.1) | 0.296 |
Drinking (%) | 17 (11.0) | 6 (26.1) | 0.095 |
Hypertension (%) | 77 (50.0) | 10 (43.5) | 0.560 |
Rupture (%) | 21 (13.6) | 3 (13.0) | 1.000 |
Aneurysm morphological characteristics | |||
Aneurysm size* | 5.71 (8.53) | 7.22 (12.95) | 0.217 |
AR* | 1.11 (1.42) | 1.23 (1.86) | 0.056 |
SR* | 1.71 (3.12) | 2.58 (3.47) | 0.179 |
Shape (%) | 0.263 | ||
Regular | 99 (64.3) | 12 (52.2) | |
Irregular | 55 (35.7) | 11 (47.8) | |
Location (%) | 0.652 | ||
Anterior circulation | 139 (90.3) | 22 (95.7) | |
Posterior circulation | 15 (9.7) | 1 (4.3) | |
Sidewall/bifurcation aneurysm (%) | 0.797 | ||
Sidewall | 98 (63.6) | 14 (60.9) | |
Bifurcation | 56 (36.4) | 9 (39.1) | |
Treated-related factors | |||
Treatment therapy (%) | 0.086 | ||
Coiling | 32 (20.8) | 9 (39.1) | |
Stent-assisted coiling | 88 (57.1) | 8 (34.8) | |
Flow diverter | 34 (22.1) | 6 (26.1) | |
Packing density (%) | 24.7±16.5 | 19.1±15.0 | 0.126 |
Follow-up period (months) | 6.62±1.86 | 6.58±2.35 | 0.918 |
Haemodynamic changes | |||
The RR of velocity at the aneurysm neck plane (%) | 59.3±22.8 | 43.4±22.7 | 0.002 |
The RR of WSS on the aneurysm neck (%)* | 48.0 (67.9) | 19.5 (41.6) | 0.072 |
The RR of velocity in the aneurysm (%)* | 78.6 (87.8) | 73.4 (79.3) | 0.073 |
The RR of WSS on the aneurysm | 61.7±26.3 | 52.8±59.6 | 0.488 |
*The data were expressed as median (quartile).
AR, aspect ratio; RR, reduction ratio; SR, size ratio; WSS, wall shear stress.