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Calibration of the fat and muscle hyperelastic material parameters for the assessment of the internal tissue deformation in relation to pressure ulcer prevention

Article dans une revue avec comité de lecture
Auteur
MUKHINA, Ekatrina
1001017 Institut de Biomécanique Humaine Georges Charpak [IBHGC]
ROHAN, Pierre-Yves
1001017 Institut de Biomécanique Humaine Georges Charpak [IBHGC]
CONNESSON, Nathanael
1042703 Université Grenoble Alpes [UGA]
PAYAN, Yohan
1042703 Université Grenoble Alpes [UGA]

URI
http://hdl.handle.net/10985/19795
DOI
10.1080/10255842.2020.1813426
Date
2020
Journal
Computer Methods in Biomechanics and Biomedical Engineering

Résumé

Our group aims at proposing a protocol for evaluating the subject-specific risk for sacral pressure ulcer (PU). The idea is to model the way soft tissue will be deformed under the external pressure and to compute internal strains. It has been indeed showed that high strains can create deep tissue injuries (Ceelen et al., 2008). Because of the clinical constraints, we propose to use Ultrasound (US) to build the subject-specific biomechanical model of the sacral soft tissue as an alternative to 3D MR imaging (because of cost, time and accessibility). This paper focuses on the way such a subject-specific model will be designed and more specifically on the methodology we propose for estimating the constitutive parameters of the internal sacral soft tissue, namely the adipose tissue and the muscle. The values of these parameters have indeed a strong influence on the computed internal strains

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Documents liés

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  • Calibration of the fat and muscle hyperelastic material parameters for the assessment of the internal tissue deformation in relation to pressure ulcer prevention 
    Communication avec acte
    MUKHINA, Ekaterina; ROHAN, Pierre-Yves; CONNESSON, Nathanael; PAYAN, Yohan (Taylor and Francis, 2020)
    Presented work shows the possibility of using the US data for the assessment of the soft tissues’ material properties. This is clinically relevant, since US allows to obtain a subject-specific anatomical data, while being ...
  • MR-based quantitative measurement of human soft tissue internal strains for pressure ulcer prevention 
    Article dans une revue avec comité de lecture
    TREBBI, Alessio; MUKHINA, Ekaterina; ROHAN, Pierre-Yves; CONNESSON, Nathanaël; BAILET, Mathieu; PERRIER, Antoine; PAYAN, Yohan (Elsevier BV, 2022-10)
    Pressure ulcers are a severe disease affecting patients that are bedridden or in a wheelchair bound for long periods of time. These wounds can develop in the deep layers of the skin of specific parts of the body, mostly ...
  • Reliability of B-mode ultrasound and shear wave elastography in evaluating sacral bone and soft tissue characteristics in young adults with clinical feasibility in elderly 
    Article dans une revue avec comité de lecture
    ABOU KARAM, Maher; MUKHINA, Ekaterina; DARAS, Nils; RIVALS, ISabelle; PILLET, Helene; SKALLI, Wafa; CONNESSON, Nathanael; PAYAN, Yohan; ROHAN, PIerre-Yves (2022)
    Background: Physiologic aging is associated with loss of mobility, sarcopenia, skin atrophy and loss of elasticity. These factors contribute, in the elderly, to the occurrence of a pressure ulcer (PU). Brightness mode ...
  • Finite element models of the human tongue: a mixed-element mesh approach 
    Article dans une revue avec comité de lecture
    ROHAN, Pierre-Yves; LOBOS, Claudio; NAZARI, Mohamed Ali; PERRIER, Pascal; PAYAN, Yohan (Taylor & Francis, 2017)
    One of the key factors for obtaining accurate and reliable results using the finite element method is the discretisation of the domain. Traditionally, two main types of elements are used for three-dimensional mesh generation: ...
  • Atlas-Based Automatic Generation of Subject-Specific Finite Element Tongue Meshes 
    Article dans une revue avec comité de lecture
    BIJAR, Ahmad; ROHAN, Pierre-Yves; PERRIER, Pascal; PAYAN, Yohan (Springer Verlag, 2015)
    Generation of subject-specific 3D finite element (FE) models requires the processing of numerous medical images in order to precisely extract geometrical information about subject-specific anatomy. This processing remains ...

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