Viscoelasti and/or hystereti properties of the skin : a ousto-me hani al evaluation using nonlinear time reversal imaging in symbiosis with uniaxial loading

0439156 - ÚT 2015 FR eng C - Konferenční příspěvek (zahraniční konf.)
Dos Santos, S. - Remache, D. - Tokar, Daniel - Gratton, M. - Pittet, J.Ch. - Převorovský, Zdeněk - Caliez, M.
Viscoelasti and/or hystereti properties of the skin : a ousto-me hani al evaluation using nonlinear time reversal imaging in symbiosis with uniaxial loading.
International Federation of Societies of Cosmetic Chemistry. Paris, 2014, s. 1651-1570.
[IFSCC Congress. Paris (FR), 27.10.2014-30.10.2014]
Institucionální podpora: RVO:61388998
Klíčová slova: acoustomechanical evaluation * skin tissue * nonlinear time-reversal
Kód oboru RIV: BO - Biofyzika

The paper presents an acousto-mechanical device for characterization of skin local elastic properties. Skin soft tissue and skin substitutes were tested in-vitro under uniaxial cyclic loading, and skin hysteretic biomechanical responses were investigated with a phenomenological approach including Preisach-Mayergoyz (PM space) models. New phenomenological parameters of porcine skin are extracted using multi-scale acousto-mechanical uniaxial loading tests in symbiosis with nonlinear time-reversal approach. Experimentation, which associates a TR-NEWS 50 MHz ultrasonic instrumentation, and a mechanical loading with optimized excitation around 0.1–1.0 Hz has been coupled successfully in a fully automated system. Phenomenological hysteretic parameters are extracted and associated to standard parameters used for skin characterization.
Trvalý link: http://hdl.handle.net/11104/0242868