中国医疗设备2011，Vol.26Issue(7)：1-12,12.DOI:10.3969/j.issn.1674-1633.2011.07.001
组织弹性测量之传统印压测试
Traditional Indentation Test for Measurement of Soft Tissue Elasticity
摘要
Abstract
As an analog of hand palpation,indentation test uses an indenter with a smaller contact area corupared to the tested soft tissue to compress it and utilizes the relationship of force/deformation to measure the elastic properties of the soft tissue.Compared to hand palpaation,the indentation is a method with quantitative results and objective analysis.With little requirement for the preparation of the tested soft tissue and as a noninvasive testing,the indentation has been widely applied to measure the tissue elasticity and has become one of the most frequently used methods in the field of elasticity measurement. Traditional indentation systems measure the displacement of indener as equivalent of the tissue deformation.The use of such system focues on the measurement results but pays little attention to the system aapplicability.In recent years,new indentation systems are emerging such as the ultrasound indentation and the water-jet indentation systems.These systems, called"novel indentation systems" hereafter ,not only have a good performance of indentation test but also possess the advantage of portability and potential in miniaturization for wide clinical applications.In this paper, the traditional indentation techniques and systems are introduced. Firstly the history of indentation for elasticity measurement of soft tissues is briefly reviewed. Then the analysis technique for indentation test is presented followed by several main applications of indentation for elasticity measurement A summary is given at the end of this paper.关键词
弹性/弹性测量/印压/杨氏模量/整体模量/剪切模量/泊松比/单相模型/二相模型/粘弹性Key words
elasticity/ elasticity measurement/ indentation/ Young's modulus/ aggregate modulus/ shear modulus/ poisson's ratio/ single-phase model/ biphasic model/ viscoelasticity分类
医药卫生引用本文复制引用
黄燕平,郑永平..组织弹性测量之传统印压测试[J].中国医疗设备,2011,26(7):1-12,12.基金项目
香港研究资助局(PolyU5354/08E)和香港理工大学(J-BB69)基金对本研究的资助. （PolyU5354/08E）
