Mitral valve closure prediction with 3-d personalized anatomical models and anisotropic hyperelastic tissue assumptions

C. Sprouse, R. Mukherjee, P. Burlina

Research output: Contribution to journalArticlepeer-review

Abstract

This study is concerned with the development of patient-specific simulations of the mitral valve that use personalized anatomical models derived from 3-D transesophageal echocardiography (3-D TEE). The proposed method predicts the closed configuration of the mitral valve by solving for an equilibrium solution that balances various forces including blood pressure, tissue collision, valve tethering, and tissue elasticity. The model also incorporates realistic hyperelastic and anisotropic properties for the valve leaflets. This study compares hyperelastic tissue laws with a quasi-elastic law under various physiological parameters, and provides insights into error sensitivity to chordal placement, allowing for a preliminary comparison of the influence of the two factors (chords and models) on error. Predictive errors show the promise of the method, yielding aggregate median errors of the order of 1 mm, and computed strains and stresses show good correspondence with those reported in prior studies.

Original languageEnglish (US)
Article number6553098
Pages (from-to)3238-3247
Number of pages10
JournalIEEE Transactions on Biomedical Engineering
Volume60
Issue number11
DOIs
StatePublished - 2013

Keywords

  • 3-D personalized models
  • hyperelastic tissue models
  • mitral valve closure prediction
  • sensitivity to chordal length

ASJC Scopus subject areas

  • Biomedical Engineering

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