中医康复2024，Vol.1Issue(7)：47-51,5.DOI:10.19787/j.issn.2097-3128.2024.07.010
超声剪切波弹性成像技术量化评估健康青年跟腱弹性的研究
Quantitative Evaluation of Achilles Tendon Elasticity with Different Ankle Angles by Shear Wave Elastography
摘要
Abstract
Objective:The purposes of the present study were:1)to evaluate intra-and inter-operator reliability of stiffness properties measurements in Achilles tendon(AT)by using the shear wave elastography(SWE);2)to examine the effects of ankle joint angles on the stiffness of AT;3)to com-pare the stiffness of AT in different regions.Methods:Twenty healthy young subjects were recruited from May to August 2018.The average age of male was(23.21±3.09)years old,height was(174.71±5.07)cm,weight was(73.07±13.46)kg,BMI was(23.88±3.85)kg/m2.The average age of fe-male was(20.83±2.23)years old,height was(161.83±5.71)cm,weight was(55.00±13.45)kg,BMI was(20.92±4.48)kg/m2.The two examiners measured the stiffness of 0 cm,3 cm and 6 cm above the calcaneal tubercle of healthy young subjects when the ankle joint was in the relaxed position and 90 degree position with SuperSonic Imagine Aixplorer® Ultrasonic system.The intraclass correlation coefficient(ICC),standard error measure-ment(SEM),minimal detectable change(MDC)and 95％confidence interval(95％CI)were calculated.Paired t-test was used to analyze the effect of different angles on Achilles tendon,and the growth rate of Achilles tendon hardness with ankle angle was calculated.Paired t-test was used to ana-lyze the effect of different angles on AT,and the growth rate of AT stiffness with ankle angle was calculated.Results:The inter-operator reliability of SWE in the measurement of AT at 0 cm(relaxed position)was moderate(ICC=0.66).The intra-operator of AT at 0 cm(neutral position)was excel-lent(ICC=0.91),inter-operator of AT at 3 cm(neutral position)was excellent(ICC=0.93),intra-operator and inter-operator of AT at 6 cm(neutral po-sition)was excellent(ICC=0.96,0.98,respectively).The rest reliability of AT were good.In addition,the MDC and SEM of AT were 14.49～60.28 kPa and 11.87～21.75 kPa,respectively.The stiffness of AT in neutral position was significantly higher than that in relaxed position(P＜0.001).When the ankle angle was changed from relaxed position to neutral position,the stiffness of AT changed as follows:AT0cm＞AT3cm＞AT6cm,and the stiff-ness growth rates were 33.06％±16.49％,28.34％±15.31％and 28.21％±14.33％,respectively.Conclusion:SWE has comparatively high reliability in quantifying the stiffness of Achilles tendon whatever AT were relaxed or stretched.The stiffness of AT is related to the position of the ankle joint.SWE can provide the objective data of AT to clinicians for further diagnosis and treatment.关键词
剪切模量/跟腱/弹性/踝关节角度Key words
stiffness/achilles tendon/shear modulus/angles of ankle joint分类
医药卫生引用本文复制引用
周吉平,林宇仪,潘巍一,张志杰,王玉龙..超声剪切波弹性成像技术量化评估健康青年跟腱弹性的研究[J].中医康复,2024,1(7):47-51,5.基金项目
深圳市大鹏新区医疗健康集团育苗项目(2021JTYM05) （2021JTYM05）
广东省医学科学技术研究基金项目(B2024008) （B2024008）
