Chinese Journal of Tissue Engineering Research ›› 2018, Vol. 22 ›› Issue (20): 3155-3160.doi: 10.3969/j.issn.2095-4344.0319

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Finite element analysis of shear wave velocity influenced by force in muscle

Ji Qian-yi1, Chen Xiao1, 2, Xu Chang1   

  1. 1College of Electronic & Information Engineering, 2Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing 210044, Jiangsu Province, China
  • Received:2018-04-19 Online:2018-07-18 Published:2018-07-18
  • Contact: Chen Xiao, Ph.D., Professor, College of Electronic & Information Engineering, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing 210044, Jiangsu Province, China
  • About author:Ji Qian-yi, Master candidate, College of Electronic & Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, Jiangsu Province, China
  • Supported by:

    the Natural Science Foundation of Jiangsu Province, No. BK20161536; the Second-Phase Construction Engineering Project of Dominant Subject in Jiangsu Provincial Universities

Abstract:

BACKGROUND: Force distribution in muscle is still a hotspot. The in vitro experiments show that the Young’s modulus of human muscle changes obviously under the influence of external force. However, it is difficult to detect force distribution in vivo. Shear wave elastography is a promising non-invasive imaging diagnostic method, which has been introduced into the study on muscle force distribution.
OBJECTIVE: To testify the relationship between shear wave velocity and stress by establishing the hyperelasticity finite element model for muscles, so as to provide a theoretical basis for the application of shear wave elastic imaging to detect the force distribution in muscle.
METHODS: The hyperelasticity finite element model was established based on in vitro experimental data. The shear wave speeds in muscle tissues under tension were studied by applying different statistic loads in axial direction.
 RESULTS AND CONCLOSION: The results showed that the shear wave speeds increased from 6.1 m/s to 13.1 m/s as the load increased. The speed was linearly related to the load. Therefore, shear wave elastography can measure the force distribution in muscle by measuring shear wave speeds.

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

Key words:  Finite Element Analysis, Biomechanics, Tissue Engineering, Dominant Discipline Construction Project at Phase II in Universities of Jiangsu Province

CLC Number: