Morphing finite element meshes of intervertebral discs into patient-specific models by Estefano Muñoz Moya, Universitat Pompeu Fabra.
Diagram of the morphing process of a template finite element mesh of an intervertebral disc previously calibrated and validated to patient-specific models. (a) Nodes of the template mesh elements as a first input. (b) Point cloud representing the external surfaces of 169 discs of real patients as a second input. (c) Seven-step diagram of the morphing process to generate the mesh to adapt the mesh to the real models. The Bayesian Coherent Point Drift algorithm morphs the disc through two main variables. λ: controls the expected length of the displacement vectors. β:controls the directional correlation between the displacement vectors.
