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Modeling the contraction of the pelvic floor muscles

Author

Listed:
  • Fernanda Sofia Quintela da Silva Brandão
  • Marco Paulo Lages Parente
  • Paulo Alexandre Gomes Gonçalves Rocha
  • Maria Teresa da Quinta e Costa de Mascarenhas Saraiva
  • Isabel Maria Amorim Pereira Ramos
  • Renato Manuel Natal Jorge

Abstract

We performed numerical simulation of voluntary contraction of the pelvic floor muscles to evaluate the resulting displacements of the organs and muscles. Structures were segmented in Magnetic Resonance (MR) images. Different material properties and constitutive models were attributed. The Finite Element Method was applied, and displacements were compared with dynamic MRI findings. Numerical simulation showed muscle magnitude displacement ranging from 0 to 7.9 mm, more evident in the posterior area. Accordingly, the anorectum moved more than the uterus and bladder. Dynamic MRI showed less 0.2 mm and 4.1 mm muscle dislocation in the anterior and cranial directions, respectively. Applications of this model include evaluating muscle impairment, subject-specific mesh implant planning, or effectiveness of rehabilitation.

Suggested Citation

  • Fernanda Sofia Quintela da Silva Brandão & Marco Paulo Lages Parente & Paulo Alexandre Gomes Gonçalves Rocha & Maria Teresa da Quinta e Costa de Mascarenhas Saraiva & Isabel Maria Amorim Pereira Ramos, 2016. "Modeling the contraction of the pelvic floor muscles," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 19(4), pages 347-356, March.
    • Handle: RePEc:taf:gcmbxx:v:19:y:2016:i:4:p:347-356
    DOI: 10.1080/10255842.2015.1028031
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    1. C.S. Saleme & M.P.L. Parente & R.M. Natal Jorge & M. Pinotti & A.L. Silva-Filho & T. Roza & T. Mascarenhas & João Manuel R.S. Tavares, 2011. "An approach on determining the displacements of the pelvic floor during voluntary contraction using numerical simulation and MRI," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 14(04), pages 365-370.
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