A shell finite element model of the pelvic floor muscles

• Tipo: Artigo em Revista Científica Internacional
• Data: 2005

Autores

D'Aulignac, D (Autor) Outra; Martins, JAC (Autor) Outra; Pires, EB (Autor) Outra; mascarenhas, t (Autor) FMUP; Renato Natal Jorge (Autor) FEUP

Revista

Título: Computer Methods in Biomechanics and Biomedical Engineering

Vol. 8

Páginas: 339-347

ISSN: 1025-5842

Editora: Taylor & Francis

Indexação

ISI Web of Science

Scopus - 67 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia biomédica

Outras Informações

ID Authenticus: P-007-F68

DOI: 10.1080/10255840500405378

Abstract (EN): The pelvic floor gives support to the organs in the abdominal cavity. Using the dataset made public in (Janda et al. J. Biomech. (2003) 36(6), pp. 749-757), we have reconstructed the geometry of one of the most important parts of the pelvic floor, the levator ani, using NURB surfaces. Once the surface is triangulated, the corresponding mesh is used in a finite element analysis with shell elements. Based on the 3D behavior of the muscle we have constructed a shell that takes into account the direction of the muscle fibers and the incompressibility of the tissue. The constitutive model for the isotropic strain energy and the passive strain energy stored in the fibers is adapted from Humphrey's model for cardiac muscles. To this the active behavior of the skeletal muscle is added. We present preliminary results of a simulation of the levator ani muscle under pressure and with active contraction. This research aims at helping simulate the damages to the pelvic floor that can occur after childbirth. © 2005 Taylor & Francis Ltd.

Idioma: Inglês

Tipo (Avaliação Docente): Científica