Table 3.
Wall shear stress for ruptured and unruptured aneurysms in the narrow-necked aneurysm group
| Parameters | Ruptured | Unruptured | P |
|---|---|---|---|
| Mean aneurysms WSS (Pa) | 1.96 ± 1.30 | 3.33 ± 1.45 | 0.028 |
| Highest aneurysm WSS (Pa) | 9.08 ± 6.64 | 8.19 ± 3.69 | 0.720 |
| Mean parent artery WSS (Pa) | 7.85 ± 3.98 | 7.14 ± 3.08 | 0.655 |
| Low shear area ratio (low shear area/dome area) | 0.340 ± 0.308 | 0.093 ± 0.125 | 0.015 |
| Highest aneurysm-parent WSS ratio | 1.098 ± 0.388 | 1.174 ± 0.382 | 0.649 |
| Mean aneurysm-parent WSS ratio | 0.233 ± 0.120 | 0.474 ± 0.164 | 0.001 |
Normally distributed variables are presented as mean ± SD and were analyzed with the independent-samples t test. A P value <0.05 was deemed statistically significant
WSS wall shear stress