Table 4.
Wall shear stress for ruptured and unruptured aneurysms in wide-necked aneurysms
| Parameters | Ruptured | Unruptured | P |
|---|---|---|---|
| Mean aneurysm WSS (Pa) | |||
| Median | 4.04 | 4.44 | 0.587 |
| Quartiles | 5.24 | 2.96 | |
| Highest aneurysm WSS (Pa) | 14.58 ± 10.93 | 9.95 ± 3.73 | 0.048 |
| Mean parent artery WSS (Pa) | 8.94 ± 6.13 | 7.73 ± 2.53 | 0.355 |
| Low shear area ratio (low shear area/dome area) | 0.075 ± 0.082 | 0.026 ± 0.032 | 0.007 |
| Highest aneurysm-parent WSS ratio | 1.616 ± 0.320 | 1.292 ± 0.176 | 0.000 |
| Mean aneurysm-parent WSS ratio | 0.656 ± 0.247 | 0.660 ± 0.170 | 0.954 |
Normally distributed variables are presented as mean ± SD and were analyzed with the independent-samples t test. Non-normally distributed variables are presented as medians and quartiles and were analyzed using the Mann–Whitney U test. A P value <0.05 was deemed statistically significant
WSS wall shear stress