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
Résumé
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 much more accessible and less costly than MRI. Results also imply the importance of using several parameters representing different types of soft tissues for the inverse optimization of the material properties.
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Article dans une revue avec comité de lectureTREBBI, Alessio; MUKHINA, Ekaterina; CONNESSON, Nathanaël; BAILET, Mathieu; PERRIER, Antoine; PAYAN, Yohan; ROHAN, Pierre-Yves (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 ...
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Article dans une revue avec comité de lectureABOU 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 ...
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Article dans une revue avec comité de lectureOur 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 ...
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Article dans une revue avec comité de lectureGeneration 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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Article dans une revue avec comité de lectureLOBOS, Claudio; NAZARI, Mohamed Ali; PERRIER, Pascal; PAYAN, Yohan; ROHAN, Pierre-Yves (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: ...