Is echogenicity a viable metric for evaluating tendon properties in vivo?
Is echogenicity a viable metric for evaluating tendon properties in vivo?
复制标题
回声性是评估肌腱体内特性的可行指标吗？
DOI：
10.1016/j.jbiomech.2014.03.030
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发表时间：
2014
影响因子：
2.4
通讯作者：
Buchanan,ThomasS
中科院分区：
文献类型：
--
作者：
Suydam,StephenM;Buchanan,ThomasS
体内组织的材料特性为愈合进展和病理学的临床分析提供了机会，并为纵向和跨群体研究提供了产生量化数据的优秀研究工具。回声性是一种材料反射声音的能力，通过超声波，它已被证明会随着体外肌腱张力的增加而增加，尽管这种用于确定机械性能的非侵入性测量技术尚未在体内进行测试。本研究的目的是确定通过图像亮度增加看到的回声是否与组织内的应力相关。 18 根跟腱在矢状面和横向面上成像，同时从休息开始产生一系列等长收缩，并产生相当于 0.5、1.0、1.5 和 2.0 倍体重的扭矩。手动追踪识别出每张图像中的肌腱。根据横向平面图像确定的横截面积与肌腱力结合产生肌腱应力。肌腱的回声性是根据从矢状平面图像测量的从静止到每个收缩情况的平均亮度变化来确定的。回声性和应力之间存在弱相关性（R=0.25），但发现收缩期间轴向面积没有显着变化（p=0.683），表明肌腱不可压缩。由于体内测试中包含其他因素，例如肌腱扭转和多轴载荷，回声性被证明对于测量跟腱的机械性能不起作用。
Material properties of tissuein vivopresent an opportunity for clinical analysis of healing progression and pathologies as well as provide an excellent research tool yielding quantified data for longitudinal and cross population studies. Echogenicity is a material׳s ability to reflect sound and, using ultrasound, it has been shown to increase with tendon tensionin vitro,though this non-invasive measurement technique for determining mechanical properties has not been testedin vivo. The aim of this study was to establish if echogenicity, seen by the increase in image brightness, could be correlated to stress within a tissue. 18 Achilles tendons were imaged in the sagittal and transverse planes while producing a series of isometric contractions starting from rest and producing the torque equivalent of 0.5, 1.0, 1.5, and 2.0× body weights. Manual tracing identified the tendon in each of the images. The cross-sectional area determined from the transverse plane images in conjunction with the tendon force yielded the tendon stress. The echogenicity of the tendon was determined from the mean brightness change from rest to each of the contraction cases, measured from the sagittal plane images. A weak correlation existed between the echogenicity and stress (R=0.25) but it was found that there was no significant change in axial area during contraction (p=0.683) establishing the tendon as incompressible. Echogenicity proved to be non-functional for measuring the mechanical properties of the Achilles tendon due to the additional factors included within vivotestinge.g.tendon twist and multi-axial loading.
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影响因子：
2.4
作者：
Duenwald, Sarah;Kobayashi, Hirohito;Frisch, Kayt;Lakes, Roderic;Vanderby, Ray, Jr.
通讯作者：
Vanderby, Ray, Jr.
影响因子：
3.8
作者：
Doral, Mahmut Nedim;Alam, Mahbub;Maffulli, Nicola
通讯作者：
Maffulli, Nicola
影响因子：
1.8
作者：
Kongsgaard, M.;Nielsen, C. H.;Magnusson, S. P.
通讯作者：
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DOI：
10.1111/j.1600-0838.2010.01154.x
发表时间：
2012-02-01
影响因子：
4.1
作者：
Schepull, T.;Kvist, J.;Aspenberg, P.
通讯作者：
Aspenberg, P.
影响因子：
2.9
作者：
Garcia, T;Hornof, WJ;Insana, MF
通讯作者：
Insana, MF