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Reliability of rehabilitative ultrasound imaging for the medial gastrocnemius muscle in poststroke patients
Author(s) -
Cho Ki Hun,
Lee Hwang Jae,
Lee Wan Hee
Publication year - 2014
Publication title -
clinical physiology and functional imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.608
H-Index - 67
eISSN - 1475-097X
pISSN - 1475-0961
DOI - 10.1111/cpf.12060
Subject(s) - medicine , intraclass correlation , ultrasound , gastrocnemius muscle , ultrasound imaging , ankle , ultrasonography , reliability (semiconductor) , stroke (engine) , physical medicine and rehabilitation , nuclear medicine , physical therapy , surgery , radiology , anatomy , skeletal muscle , mechanical engineering , clinical psychology , power (physics) , physics , quantum mechanics , engineering , psychometrics
Summary Objective The purpose of this study was to evaluate the suitability of rehabilitative ultrasound imaging for quantification of medial gastrocnemius muscle in poststroke patients. Participants 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. Methods Real‐time B ‐mode ultrasonography with a 7·5‐ MH z 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 ( ICC s (3,1) ) were used for estimation of reliability. Results 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). Conclusion 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.