An hemodynamic work bench for in-vitro measurements in arterial bifurcations: Experimental results and comparison with the output of a simplified CFD model

To quantify fluid-structure interactions in arterial walls, from a biomechanical standpoint, a complete characterization of blood flow, shear stress in the interface between blood and endothelium, wall elasticity and wall stresses distribution are needed. A new specific multi-parameter measurement system for an in-vitro characterization of the biomechanics and hemodynamic in arterial bifurcations is described. Some experimental in-vitro results, under near physiologic pulsated flow, are shown for a physical model of arterial bifurcation surgically implemented from a sample of fresh porcine aorta. In-vitro results are compared with in-silico results obtained from a simple CFD model of the above mentioned bifurcation.