Bey M J, Song H K, Wehrli F W, Soslowsky L J
Department of Biomedical Engineering, University of Cincinnati, Engineering Research Center, OH 45221, USA.
J Biomech Eng. 2002 Apr;124(2):253-8. doi: 10.1115/1.1449917.
The function of soft connective tissues is frequently characterized by quantifying tissue strain (e.g., during joint motion). Conventional techniques for quantifying tendon and ligament strain typically provide surface measures, using markers, stain lines or instrumentation that may influence the tissue. An alternative approach is to quantify intratendinous strain by applying texture correlation analysis to magnetic resonance (MR) images. This paper reports the accuracy and reproducibility of this approach by (1) assessing the reproducibility of MR images, (2) assessing texture correlation accuracy using simulated displacements, and (3) comparing texture correlation measures of displacement and strain from MR images to conventional techniques.
软结缔组织的功能通常通过量化组织应变来表征（例如，在关节运动期间）。用于量化肌腱和韧带应变的传统技术通常提供表面测量值，使用可能会影响组织的标记物、染色线或仪器。一种替代方法是通过对磁共振（MR）图像应用纹理相关性分析来量化肌腱内应变。本文通过（1）评估MR图像的可重复性，（2）使用模拟位移评估纹理相关性准确性，以及（3）将来自MR图像的位移和应变的纹理相关性测量值与传统技术进行比较，报告了该方法的准确性和可重复性。
