OPTIMIZATION OF AN IDEALIZED Y-GRAFT FOR THE FONTAN PROCEDURE USING CFD AND A DERIVATIVE-FREE OPTIMIZATION ALGORITHM

摘要

We have presented optimization of an idealized representation of our newly proposed Y-graft modification of the Fontan procedure.Optimal shapes differ between rest and exercise as well as, steady and pulsatile flow. Large graft size and separate branches have high energy efficiency but larger areas of low WSS. The Importance of the wall shear stress constraint decreases with increasing exercise level.