Towards real-time finite-strain anisotropic thermo-visco-elastodynamic analysis of soft tissues for thermal ablative therapy

Accurate and efficient prediction of soft tissue temperatures is essential to computer-assisted treatment systems for thermal ablation. It can be used predict ablation volumes personalised planning image-guided intervention. Numerically, it requires full nonlinear modelling the coupled computational bioheat transfer biomechanics, solution procedures; however, existing studies considered analysis alone or linear analysis, without fully analysis. We present a thermo-visco-hyperelastic finite element algorithm, based on finite-strain thermoelasticity total Lagrangian explicit dynamics. considers (i) under deformations (ii) due expansion/shrinkage. The presented method accounts anisotropic, finite-strain, temperature-dependent, thermal, viscoelastic behaviours tissues, implemented using GPU acceleration real-time computation. achieve thermo-visco-elastodynamic anisotropic tissues undergoing large with high speeds in tetrahedral hexahedral meshes surgical simulation also demonstrate translational benefits clinical applications liver. key advantage that enables instead elastic, viscoelastic, thermal-only methods. provides towards enabling operator simulate accurately visualise zones immediately.