Your browser doesn't support javascript.
loading
A mass-spring model of the auditory system in otosclerosis
Fragoso, Lygia Bueno; Magalhães, Max de Castro; Las Casas, Estevam Barbosa de; Santos, Juliana Nunes; Rabelo, Alessandra Terra Vasconcelos; Oliveira, Rafaella Cristina.
Afiliação
  • Fragoso, Lygia Bueno; Universidade Federal de Minas Gerais. School of Engineering. Department of Structural Engineering. Biomechanical Engineering Laboratory. Belo Horizonte. BR
  • Magalhães, Max de Castro; Universidade Federal de Minas Gerais. School of Engineering. Department of Structural Engineering. Biomechanical Engineering Laboratory. Belo Horizonte. BR
  • Las Casas, Estevam Barbosa de; Universidade Federal de Minas Gerais. School of Engineering. Department of Structural Engineering. Biomechanical Engineering Laboratory. Belo Horizonte. BR
  • Santos, Juliana Nunes; Universidade Federal de Minas Gerais. School of Engineering. Department of Structural Engineering. Biomechanical Engineering Laboratory. Belo Horizonte. BR
  • Rabelo, Alessandra Terra Vasconcelos; Universidade Federal de Minas Gerais. School of Engineering. Department of Structural Engineering. Biomechanical Engineering Laboratory. Belo Horizonte. BR
  • Oliveira, Rafaella Cristina; Universidade Federal de Minas Gerais. School of Engineering. Department of Structural Engineering. Biomechanical Engineering Laboratory. Belo Horizonte. BR
Rev. bras. eng. biomed ; 30(3): 281-288, Sept. 2014. graf, tab
Artigo em Inglês | LILACS-Express | LILACS | ID: lil-723266
Biblioteca responsável: BR1.1
ABSTRACT

INTRODUCTION:

This paper aims to describe a model to simulate otosclerosis using a mass-spring model and to correlate the results with the clinical and audiological data on the disease.

METHODS:

A mass-spring model was used to represent the behavior of the auditory system simulating otosclerosis. The model consisted of six masses (air volume in the external auditory canal; tympanic membrane; malleus; incus; stapes, and cochlear fluid), springs and dashpots simulating the supporting ligaments and muscles. The parameters to simulate the disease were obtained from the literature; stapedial annular ligament stiffness was increased by 10-fold and to 100-fold and stapes mass increased by 5-fold.

RESULTS:

There was a decrease in stapes displacement in the lower frequencies when the stiffness of the stapedial annular ligament was increased. It was also found a reduction in stapes displacement in the higher frequencies with increased stapes mass.

CONCLUSION:

The increased stiffness of the stapedial annular ligament can be an indication of early stage disease, whereas increased bone growth suggests disease progression. The results of the simulation are in agreement with the clinical and audiological disease and support the need for further study of the stapedial annular ligament to find ways to evaluate its functioning and thus enable early detection of hearing losses caused by changes in that structure.

Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: LILACS Tipo de estudo: Estudo de rastreamento Idioma: Inglês Revista: Rev. bras. eng. biomed Assunto da revista: Engenharia Biomédica Ano de publicação: 2014 Tipo de documento: Artigo País de afiliação: Brasil Instituição/País de afiliação: Universidade Federal de Minas Gerais/BR

Similares

MEDLINE

...
LILACS

LIS


Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: LILACS Tipo de estudo: Estudo de rastreamento Idioma: Inglês Revista: Rev. bras. eng. biomed Assunto da revista: Engenharia Biomédica Ano de publicação: 2014 Tipo de documento: Artigo País de afiliação: Brasil Instituição/País de afiliação: Universidade Federal de Minas Gerais/BR
...