Biomechanical model for predicting deformations of a patient body

Abstract

The present invention relates to computer-implemented method of predicting a deformation of at least one part of a patient body, a corresponding computer program, a program storage medium with such a program, as well as a medical system. The method comprises the steps of providing a computer simulatable biomechanical model of the at least one part of a patient body (step S); carrying out S>1 forward simulations of the biomechanical model thereby calculating S resulting deformation vectors (step S); calculating an approximated biomechanical model based on the S resulting deformation vectors (step S); acquiring pre-operative data (step S); optimizing, in a calculative manner, a deformation predicted by the approximated biomechanical model, which results in an optimized, predicted deformation vector (step S); and deforming the pre-operative data by applying the optimized, predicted deformation vector to the pre-operative patient data (step S). Particular embodiments of said calculation of the approximated biomechanical model entail different embodiments of a multivariate interpolation, and/or entail different embodiments of a mode decomposition.