Fluid–Structure Interaction and Non-Fourier Effects in Coupled Electro-Thermo-Mechanical Models for Cardiac Ablation

In this study, a fully coupled electro-thermo-mechanical model of radiofrequency (RF)-assisted cardiac ablation has been developed, incorporating fluid–structure interaction, thermal relaxation time effects and porous media approach. A non-Fourier based bio-heat transfer used for predicting the temperature distribution zone during ablation. The blood modeled as Newtonian fluid velocity fields are obtained utilizing Navier–Stokes equations. stresses induced due to heating tissue have also accounted. Parametric studies conducted investigate effect porosity, effects, electrode insertion depths orientations on treatment outcomes results presented in terms predicted distributions volumes different cases interest finite element COMSOL Multiphysics software. It found that depth orientation significant Further, porosity plays an important role prediction volume RF-assisted Moreover, times only affect shorter less than 30 s.