Wall Shear Stress Measurement in Carotid Artery Phantoms with Variation in Degree of Stenosis Using Plane Wave Vector Doppler

Wall shear stress (WSS) plays an important role in the formation, growth, and rupture of atherosclerotic plaques arteries. This study measured WSS diseased carotid artery phantoms with degrees stenosis varying from 0 to 60% both steady pulsatile flow. Experiments were performed using silico real flow phantoms. Blood velocities estimated plane wave (PW) vector Doppler. was then velocity gradient near wall multiplied by viscosity a blood-mimicking fluid. The phantom agreed within 10% ground-truth values (root-mean-square error). experiment showed that mean maximum increased increasing degree stenosis. simulation results provide necessary validation data give confidence measurements patients PW Doppler technique.