剪切波弹性成像技术量化评估肌腱肌肉弹性模量的信度

Intra-and Inter-rater Reliability of Shear Wave Elastic Imaging Technique for Elastic Modulus Measurements of Muscle and Tendon

目的应用剪切波弹性成像测量髌腱和股四头肌硬度,并进行重复性测试信度研究。方法 2017年10月至11月,两名检查者使用弹性剪切波超声分别测量20例健康男性的髌腱和股四头肌的平均硬度,重复测量在第一次测量后5 d进行,通过等级相关系数(ICC)对测量结果进行评估。结果测量髌腱时,检查者内ICC=0.79,检查者间ICC=0.79;测量股直肌时,检查者内ICC=0.71,检查者间ICC=0.73;测量股外侧肌时,检查者内ICC=0.84,检查者间ICC=0.74;测量股内侧肌时,检查者内ICC=0.95,检查者间ICC=0.94。结论应用弹性剪切波超声成像技术测量髌腱和股四头肌硬度是一种可靠、可重复的方法。

Objective To explore the intra-and inter-rater reliability of shear wave elastography(SWE)for the patellar tendon and quadriceps femoris stiffness.Methods From October to November,2017,the stiffness of the patellar tendon and quadriceps femoris of 20 healthy men was measured by SWE,and measured again five days later.The results were evaluated with interclass correlation coefficient(ICC).Results For patellar tendon,ICC=0.79 in intra-rater and inter-rater;for rectus femoris,ICC=0.71 in intra-rater and 0.73 in inter-rater;for vastus lateralis muscle,ICC=0.84 in intra-rater and 0.74 in inter-rater;for vastus medialis,ICC=0.95 in intra-rater and 0.94 in inter-rater.Conclusion It is a reliable and repeatable method to measure the stiffness of patellar tendon and quadriceps femoris by SWE.