2018-Sustainable Industrial Processing Summit
SIPS2018 Volume 4. Mamalis Intl. Symp. / Advanced Manufacturing

Editors:F. Kongoli, A. G. Mamalis, K. Hokamoto
Publisher:Flogen Star OUTREACH
Publication Year:2018
Pages:352 pages
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    Spherical Depth-sensing Indentation in a Liquid Environment: Toward Cardiac Tissue Characterization

    Jean-Philippe Jehl1; Richard Kouitat Njiwa2; Pablo Maureira3;
    Type of Paper: Regular
    Id Paper: 185
    Topic: 48


    Accurate descriptions for the mechanical behavior of human organs and tissues are required for many clinical applications. They are used for the simulation of surgical procedures (internal training and learning in continuing education) [1, 2], to integrate virtual reality systems, in engineering tissue [3], and in finite element modeling of different organs. The determination of the mechanical properties of soft biological materials is of great interest for imaging, where these material properties can be used to distinguish healthy and pathological tissues [4]. Mechanical tests are carried out to study the mechanical behavior of biological tissues [5], which include different modes of strain compression, tension, and shear. This work proposes to use spherical depth-sensing indentation experiments for the characterization of heart tissue. This tissue dries up and dies quickly, therefore a liquid environment is necessary to characterize its mechanical behavior. The spherical depth-sensing indentation has recently been adapted to operate in such an environment [6]. The experimental protocol and the method of analysis of the obtained results must be rebuilt. The presented work pinpoints the difficulties according to the tests for the cardiac tissue, and proposes some techniques to circumvent these issues. Characterizations of the cardiac tissue are obtained with theory of linear elasticity and nonlinear elasticity. The latter would appear more appropriate to describe the cardiac tissue response under a wide range of deformation.


    Biomechanics; Biomedical engineering; Mechanics; Mechanical behavior; Characterization; Depth-sensing indentation; Cardiac tissue;


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    Jehl J, Kouitat Njiwa R, Maureira P. (2018). Spherical Depth-sensing Indentation in a Liquid Environment: Toward Cardiac Tissue Characterization. In F. Kongoli, A. G. Mamalis, K. Hokamoto (Eds.), Sustainable Industrial Processing Summit SIPS2018 Volume 4. Mamalis Intl. Symp. / Advanced Manufacturing (pp. 187-194). Montreal, Canada: FLOGEN Star Outreach