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Error function obtained applying the iterative method to balloon/patient-specific anatomy: the minimum values were found for E=0.50÷0.60 MPa. The solid line interpolates the values found for the four iterations, while the dashed line represents the real Young׳s modulus (EReal=0.55 MPa) of the rapid prototyping material. Other two values are shown, corresponding to EA=0.20 MPa and EB=1.00 MPa, to confirm the robustness of the iterative method.
