| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Measurement of the Elasticity of Biological Soft Tissue of Finite Thickness |
| Hong-Sheng Zhou1,2, Tong-Yu Wang1, Zheng Xu3**, Qian Cheng3, Meng-Lu Qian3, Xiao-Yi Liu2 |
1College of Mechanical and Electric Engineering, Changchun University of Science and Technology, Jilin 130022
2Shanghai Acoustics Laboratory, Chinese Academy of Sciences, Shanghai 200032
3Institute of Acoustics, Tongji University, Shanghai 200092
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| Cite this article: |
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Hong-Sheng Zhou, Tong-Yu Wang, Zheng Xu et al 2016 Chin. Phys. Lett. 33 124601 |
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Abstract Elasticity is of profound significance to evaluating the function of a biological soft tissue. When the elasticity of a tissue is macroscopically changed, it means that the biological function of the tissue is abnormal and some disease or injury may occur. In the present work, an elastometer is developed to measure the elasticity of biological soft tissues. The measurement is based on the indentation method and the force is measured by the bending of the cantilever. The force-indentation data of the soft tissue is experimentally measured by this elastometer and Young's modulus of the tissue is calculated using the Hertz–Sneddon model. For comparison, a numerical model for the indentation method is established using the finite element method. The difference between the actual modulus and the measured modulus is discussed. The effect of the thickness of the specimen on the measurement is investigated. Young's moduli of beef, porcine liver and porcine kidney are experimentally measured. The results indicate that our elastometer is effective in measuring Young's modulus of a soft tissue quantitatively.
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Received: 08 September 2016
Published: 29 December 2016
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| PACS: |
46.35.+z
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(Viscoelasticity, plasticity, viscoplasticity)
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07.10.Pz
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(Instruments for strain, force, and torque)
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43.35.+d
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(Ultrasonics, quantum acoustics, and physical effects of sound)
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87.19.R-
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(Mechanical and electrical properties of tissues and organs)
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| Fund: Supported by the National Natural Science Foundation of China under Grant Nos 11274342, 11304353, 11404245 and 11474042. |
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