Hemodynamic features from rabbit aneurysms (N = 51) and human aneurysms
| Hemodynamic Features | Rabbit Aneurysms | Human Aneurysmsa |
|---|---|---|
| Re | Range, 200–400 | Range, 200–50033,34 |
| α | Range, 2.5–5.0 | Range, 1.5–5.035 |
| Flow pattern | Type A: single stationary recirculation; type B: single stationary recirculation in lower sac and secondary transient recirculation in the dome | 4 Flow categories including types A and B2 |
| Pressure difference between parent artery and sac (mm Hg) | 0.36 ± 0.19; Range, 0.1–0.5 | 0.89 ± 0.686; ∼0.52 |
| OSI | Elevated 0.3–0.4 at neck (N = 51), sidewalls of sac (n = 15), dome (n = 18) | Elevated OSI, 0.24–0.47 at neck, sidewall, and dome7,8 |
| Spatially averaged WSS at peak systole (aneurysm sac, Pa) | 0.49 ± 0.62; Range, 0.02–3.2 | 1.64 ± 1.165; Range, 0.1–3.45 |
| Spatially averaged TAWSS (aneurysm sac, Pa) | 0.13 ± 0.20; Range, 0.002–1.23 | – |
| Spatially averaged WSS at peak systole (PPA, Pa) | 2.16 ± 0.93; Range, 1.02–4.89 | 3.64 ± 1.255 |
| Spatially averaged TAWSS (PPA, Pa) | 0.81 ± 0.33; Range; 0.23–1.48 | – |
| Location of maximum WSS | Distal neck (n = 51) | Neck3,5; often at distal neck4 |
| Location of minimum WSS | Dome (<0.1 Pa) | Dome3–5 |
a From published results.