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Subject specific hexahedral Finite Element mesh generation of the pelvis from bi-Planar X-ray images

Communication avec acte
Author
FOUGERON, Nolwenn
ccSKALLI, Wafa
ccROHAN, Pierre-Yves
69111 Institut Fédératif de Recherche en Sciences et Ingénierie de la Santé [IFRESIS]
109989 Département Biomécanique et Biomatériaux [DB2M-ENSMSE]
175453 Arts et Métiers ParisTech
176079 UMR 5146 - Laboratoire Claude Goux [LCG-ENSMSE]
209645 Surfaces et Tissus Biologiques [STBio-ENSMSE]
209650 Laboratoire Georges Friedel [LGF-ENSMSE]
388249 Gestes Medico-chirurgicaux Assistés par Ordinateur [TIMC-IMAG-GMCAO]
466360 Institut de Biomecanique Humaine Georges Charpak
22135 Centre Ingénierie et Santé [CIS-ENSMSE]
ccPILLET, Helene
99538 Laboratoire de biomécanique [LBM]

URI
http://hdl.handle.net/10985/15735
DOI
10.1080/10255842.2017.1382868
Date
2017

Abstract

Several Finite Element (FE) models of the pelvis have been developed to comprehensively assess the onset of pathologies and for clinical and industrial applications. However, because of the difficulties associated with the creation of subject-specific FE mesh from CT scan and MR images, most of the existing models rely on the data of one given individual. Moreover, although several fast and robust methods have been developed for automatically generating tetrahedral meshes of arbitrary geometries, hexahedral meshes are still preferred today because of their distinct advantages but their generation remains an open challenge. Recently, approaches have been proposed for fast 3D reconstruction of bones based on X-ray imaging. In this study, we adapted such an approach for the fast and automatic generation of all-hexahedral subject-specific FE models of the pelvis based on the elastic registration of a generic mesh to the subject-specific target in conjunction with element regularity and quality correction. A full hexahedral subject-specific FE mesh was generated with an accurate surface representation.

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