Rieu R, Friggi A, Pelissier R
J Biomech. 1985;18(9):703-15. doi: 10.1016/0021-9290(85)90025-9.
An experimental investigation of an elastic model of the human arterial tree, has been performed for physiological type flow by pulsed Doppler ultrasonic velocimetry. The arterial tree model, fabricated in clear polyurethane, includes the aortic arch, with a Starr-Edwards ball valve mounted in the root of the aorta, the descending aorta and the iliac bifurcation. Our study showed that the velocity profile, a few centimeters beyond the valve, is skewed, with higher velocities towards the top and the inner wall (anatomically the posterior and left lateral wall). An inward shift of the maximum velocity and reverse flow are denoted along the inner wall of the aortic arch. The velocity profiles in the descending aorta are blunted. Downstream from the vertex of the iliac bifurcation, there is vorticity creation, but the branching effect is quickly damped by the pulsatility of the flow and the elasticity of the wall.
通过脉冲多普勒超声测速仪对人体动脉树弹性模型进行了生理类型血流的实验研究。由透明聚氨酯制成的动脉树模型包括主动脉弓,在主动脉根部安装了一个斯塔尔-爱德华兹球瓣,降主动脉和髂动脉分叉处。我们的研究表明,在瓣膜几厘米外的速度剖面是倾斜的,顶部和内壁(解剖学上是后壁和左侧壁)的速度较高。沿主动脉弓内壁有最大速度的向内偏移和逆流。降主动脉中的速度剖面变钝。在髂动脉分叉顶点的下游,有涡度产生,但分支效应很快被血流的脉动性和血管壁的弹性所抑制。