Fig. 2.

Graphical representation of the fixed-point algorithm to identify myocardial passive material parameters and the unloaded reference configuration. Starting from an initial geometry X⁰ obtained from image data and initial parameters $a_{(·)}^{\text{init}},b_{(·)}^{\text{init}}$ from the literature, we perform an iterative procedure to find estimates for the unloaded reference configuration X* and personalized passive material parameters $a_{(·)}^{*},b_{(·)}^{*}$. While iterating, the simulated loading curve (in green) gets closer to the empiric EDPVR [45] (in red) which is determined by a measured pressure volume pair ($p_{\text{ed}}^{\text{dat}}$, $V_{\text{ed}}^{\text{dat}}$). Convergence of the algorithm is based on error estimates given in Section 2.3.3.