Cho Ki Hun, Lee Hwang Jae, Lee Wan Hee
Department of Physical Therapy, Seoul Bukbu Hospital, Seoul, Korea.
Clin Physiol Funct Imaging. 2014 Jan;34(1):26-31. doi: 10.1111/cpf.12060. Epub 2013 Jun 12.
The purpose of this study was to evaluate the suitability of rehabilitative ultrasound imaging for quantification of medial gastrocnemius muscle in poststroke patients.
Thirty stroke patients (15 men and 15 women; age 64·7 ± 5·66 years; stroke duration 437·40 ± 168·24 days) participated in this study.
Real-time B-mode ultrasonography with a 7·5-MHz linear transducer was used to measure pennation angle and muscle thickness of the medial gastrocnemius muscles with ankle joint 90° and maximal plantar flexion. Two examiners acquired images from all participants during three separate testing sessions. After the first measurement was performed, the second measurement was performed one hour later, and the third measurement was performed 1 week later. Intraclass correlation coefficients (ICCs(3,1) ) were used for estimation of reliability.
The ICC (95% CI) for all intra-examiner reliability was good to very good, ranging from 0·69 to 0·99 (0·51-0·99), and the ICC for all interexaminer reliability was good to very good, ranging from 0·70 to 0·99 (0·46-0·99).
In this study, the intra- and interexaminer reliability of the pennation angle and muscle thickness measurements of the medial gastrocnemius muscle was good to very good. Therefore, we suggest that the pennation angle and muscle thickness measurements of the medial gastrocnemius muscle obtained from rehabilitative ultrasound imaging would be useful for clinical assessment in poststroke patients.
本研究旨在评估康复超声成像在量化中风后患者腓肠肌内侧肌肉方面的适用性。
30名中风患者（15名男性和15名女性；年龄64.7±5.66岁；中风病程437.40±168.24天）参与了本研究。
使用配备7.5MHz线性探头的实时B型超声，在踝关节90°和最大跖屈时测量腓肠肌内侧的羽状角和肌肉厚度。两名检查者在三个不同的测试环节中为所有参与者采集图像。首次测量后，1小时后进行第二次测量，1周后进行第三次测量。组内相关系数（ICCs(3,1)）用于评估可靠性。
所有检查者内部可靠性的ICC（95%CI）为良好至极优，范围从0.69至0.99（0.51 - 0.99），所有检查者间可靠性的ICC为良好至极优，范围从0.70至0.99（0.46 - 0.99）。
在本研究中，腓肠肌内侧羽状角和肌肉厚度测量的检查者内和检查者间可靠性为良好至极优。因此，我们认为通过康复超声成像获得的腓肠肌内侧羽状角和肌肉厚度测量结果对中风后患者的临床评估有用。
