单位:[1]Institute of Biomechanics and Medical Engineering, AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, PR China [2]Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, PR China [3]Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, PR China医技科室影像中心超声医学科首都医科大学附属北京友谊医院
In part I of this study, we investigated the elastic Cherenkov effect (ECE) in an incompressible transversely isotropic (TI) soft solid using a combined theoretical and computational approach, based on which an inverse method has been proposed to measure both the anisotropic and hyperelastic parameters of TI soft tissues. In this part, experiments were carried out to validate the inverse method and demonstrate its usefulness in practical measurements. We first performed ex vivo experiments on bovine skeletal muscles. Not only the shear moduli along and perpendicular to the direction of muscle fibers but also the elastic modulus E-L and hyperelastic parameter c(2) were determined. We next carried out tensile tests to determine EL, which was compared with the value obtained using the shear wave elastography method. Furthermore, we conducted in vivo experiments on the biceps brachii and gastrocnemius muscles of ten healthy volunteers. To the best of our knowledge, this study represents the first attempt to determine EL of human muscles using the dynamic elastography method and inverse analysis. The significance of our method and its potential for clinical use are discussed. (C) 2016 Elsevier Ltd. All rights reserved.
基金:
National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11172155, 11572179, 11432008, 61322101]
第一作者单位:[1]Institute of Biomechanics and Medical Engineering, AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, PR China
通讯作者:
推荐引用方式(GB/T 7714):
Li Guo-Yang,He Qiong,Qian Lin-Xue,et al.Elastic Cherenkov effects in transversely isotropic soft materials-II: Ex vivo and in vivo experiments[J].JOURNAL of the MECHANICS and PHYSICS of SOLIDS.2016,94:181-190.doi:10.1016/j.jmps.2016.04.028.
APA:
Li, Guo-Yang,He, Qiong,Qian, Lin-Xue,Geng, Huiying,Liu, Yanlin...&Cao, Yanping.(2016).Elastic Cherenkov effects in transversely isotropic soft materials-II: Ex vivo and in vivo experiments.JOURNAL of the MECHANICS and PHYSICS of SOLIDS,94,
MLA:
Li, Guo-Yang,et al."Elastic Cherenkov effects in transversely isotropic soft materials-II: Ex vivo and in vivo experiments".JOURNAL of the MECHANICS and PHYSICS of SOLIDS 94.(2016):181-190