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
Auteur
MUKHINA, EkaterinaCONNESSON, NathanaelPAYAN, Yohan 
ROHAN, Pierre-YvesRésumé
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 lectureMUKHINA, Ekaterina; TREBBI, Alessio; ROHAN, Pierre-Yves; CONNESSON, Nathanael; (Elsevier, 2022-09)
Objective 2D Ultrasound (US) imaging has been recently investigated as a more accessible alternative to 3D Magnetic Resonance Imaging (MRI) for the estimation of soft issue motion under external mechanical loading. In ...
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Article dans une revue avec comité de lecture; ; ; ;PILLET, Helene; SKALLI, Wafa; ; ; 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 lecture; ; ; ; ; ;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 lecture; ; ;ROHAN, Pierre-Yves (Taylor & Francis, 2020)
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 ...
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Article dans une revue avec comité de lectureCONNESSON, Nathanael; BRIOT, Noémie; ROHAN, Pierre-Yves; BARRAUD, Pierre Alain; ; (Springer (for Society for Experimental Mechanics), 2023-03)
Background In vivo mechanical characterisation of biological soft tissue is challenging, even under moderate quasi-static loading. Clinical application of suction-based methods is hindered by usual assumptions of tissues ...