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Application of Hyperelastic-based Active Mesh Model in Cardiac Motion Recovery

Considering the nonlinear hyperelastic or viscoelastic nature of soft tissues has an important effect on modeling results. In medical applications, accounting nonlinearity begets an ill posed problem, due to absence of external force. Myocardium can be considered as a hyperelastic material, and vari...

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Autores principales: Yousefi-Banaem, Hossein, Kermani, Saeed, Daneshmehr, Alireza, Saneie, Hamid
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4973457/
https://www.ncbi.nlm.nih.gov/pubmed/27563570
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author Yousefi-Banaem, Hossein
Kermani, Saeed
Daneshmehr, Alireza
Saneie, Hamid
author_facet Yousefi-Banaem, Hossein
Kermani, Saeed
Daneshmehr, Alireza
Saneie, Hamid
author_sort Yousefi-Banaem, Hossein
collection PubMed
description Considering the nonlinear hyperelastic or viscoelastic nature of soft tissues has an important effect on modeling results. In medical applications, accounting nonlinearity begets an ill posed problem, due to absence of external force. Myocardium can be considered as a hyperelastic material, and variational approaches are proposed to estimate stiffness matrix, which take into account the linear and nonlinear properties of myocardium. By displacement estimation of some points in the four-dimensional cardiac magnetic resonance imaging series, using a similarity criterion, the elementary deformations are estimated, then using the Moore–Penrose inverse matrix approach, all point deformations are obtained. Using this process, the cardiac wall motion is quantized to mechanically determine local parameters to investigate the cardiac wall functionality. This process was implemented and tested over 10 healthy and 20 patients with myocardial infarction. In all patients, the process was able to precisely determine the affected region. The proposed approach was also compared with linear one and the results demonstrated its superiority respect to the linear model.
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spelling pubmed-49734572016-08-25 Application of Hyperelastic-based Active Mesh Model in Cardiac Motion Recovery Yousefi-Banaem, Hossein Kermani, Saeed Daneshmehr, Alireza Saneie, Hamid J Med Signals Sens Original Article Considering the nonlinear hyperelastic or viscoelastic nature of soft tissues has an important effect on modeling results. In medical applications, accounting nonlinearity begets an ill posed problem, due to absence of external force. Myocardium can be considered as a hyperelastic material, and variational approaches are proposed to estimate stiffness matrix, which take into account the linear and nonlinear properties of myocardium. By displacement estimation of some points in the four-dimensional cardiac magnetic resonance imaging series, using a similarity criterion, the elementary deformations are estimated, then using the Moore–Penrose inverse matrix approach, all point deformations are obtained. Using this process, the cardiac wall motion is quantized to mechanically determine local parameters to investigate the cardiac wall functionality. This process was implemented and tested over 10 healthy and 20 patients with myocardial infarction. In all patients, the process was able to precisely determine the affected region. The proposed approach was also compared with linear one and the results demonstrated its superiority respect to the linear model. Medknow Publications & Media Pvt Ltd 2016 /pmc/articles/PMC4973457/ /pubmed/27563570 Text en Copyright: © 2016 Journal of Medical Signals & Sensors http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
spellingShingle Original Article
Yousefi-Banaem, Hossein
Kermani, Saeed
Daneshmehr, Alireza
Saneie, Hamid
Application of Hyperelastic-based Active Mesh Model in Cardiac Motion Recovery
title Application of Hyperelastic-based Active Mesh Model in Cardiac Motion Recovery
title_full Application of Hyperelastic-based Active Mesh Model in Cardiac Motion Recovery
title_fullStr Application of Hyperelastic-based Active Mesh Model in Cardiac Motion Recovery
title_full_unstemmed Application of Hyperelastic-based Active Mesh Model in Cardiac Motion Recovery
title_short Application of Hyperelastic-based Active Mesh Model in Cardiac Motion Recovery
title_sort application of hyperelastic-based active mesh model in cardiac motion recovery
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4973457/
https://www.ncbi.nlm.nih.gov/pubmed/27563570
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