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Quantifying spasticity in individual muscles using shear wave elastography

Spasticity is common following stroke; however, high subject variability and unreliable measurement techniques limit research and treatment advances. Our objective was to investigate the use of shear wave elastography (SWE) to characterize the spastic reflex in the biceps brachii during passive elbo...

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Autores principales: Eby, Sarah F., Zhao, Heng, Song, Pengfei, Vareberg, Barbara J., Kinnick, Randall R., Greenleaf, James F., An, Kai-Nan, Brown, Allen W., Chen, Shigao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5417620/
https://www.ncbi.nlm.nih.gov/pubmed/28491186
http://dx.doi.org/10.1016/j.radcr.2017.01.004
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author Eby, Sarah F.
Zhao, Heng
Song, Pengfei
Vareberg, Barbara J.
Kinnick, Randall R.
Greenleaf, James F.
An, Kai-Nan
Brown, Allen W.
Chen, Shigao
author_facet Eby, Sarah F.
Zhao, Heng
Song, Pengfei
Vareberg, Barbara J.
Kinnick, Randall R.
Greenleaf, James F.
An, Kai-Nan
Brown, Allen W.
Chen, Shigao
author_sort Eby, Sarah F.
collection PubMed
description Spasticity is common following stroke; however, high subject variability and unreliable measurement techniques limit research and treatment advances. Our objective was to investigate the use of shear wave elastography (SWE) to characterize the spastic reflex in the biceps brachii during passive elbow extension in an individual with spasticity. The patient was a 42-year-old right-hand-dominant male with history of right middle cerebral artery-distribution ischemic infarction causing spastic left hemiparesis. We compared Fugl-Meyer scores (numerical evaluation of motor function, sensation, motion, and pain), Modified Ashworth scores (most commonly used clinical assessment of spasticity), and SWE measures of bilateral biceps brachii during passive elbow extension. We detected a catch that featured markedly increased stiffness of the brachialis muscle during several trials of the contralateral limb, especially at higher extension velocities. SWE was able to detect velocity-related increases in stiffness with extension of the contralateral limb, likely indicative of the spastic reflex. This study offers optimism that SWE can provide a rapid, real-time, quantitative technique that is readily accessible to clinicians for evaluating spasticity.
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spelling pubmed-54176202017-05-10 Quantifying spasticity in individual muscles using shear wave elastography Eby, Sarah F. Zhao, Heng Song, Pengfei Vareberg, Barbara J. Kinnick, Randall R. Greenleaf, James F. An, Kai-Nan Brown, Allen W. Chen, Shigao Radiol Case Rep Case Report Spasticity is common following stroke; however, high subject variability and unreliable measurement techniques limit research and treatment advances. Our objective was to investigate the use of shear wave elastography (SWE) to characterize the spastic reflex in the biceps brachii during passive elbow extension in an individual with spasticity. The patient was a 42-year-old right-hand-dominant male with history of right middle cerebral artery-distribution ischemic infarction causing spastic left hemiparesis. We compared Fugl-Meyer scores (numerical evaluation of motor function, sensation, motion, and pain), Modified Ashworth scores (most commonly used clinical assessment of spasticity), and SWE measures of bilateral biceps brachii during passive elbow extension. We detected a catch that featured markedly increased stiffness of the brachialis muscle during several trials of the contralateral limb, especially at higher extension velocities. SWE was able to detect velocity-related increases in stiffness with extension of the contralateral limb, likely indicative of the spastic reflex. This study offers optimism that SWE can provide a rapid, real-time, quantitative technique that is readily accessible to clinicians for evaluating spasticity. Elsevier 2017-02-09 /pmc/articles/PMC5417620/ /pubmed/28491186 http://dx.doi.org/10.1016/j.radcr.2017.01.004 Text en © 2017 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Case Report
Eby, Sarah F.
Zhao, Heng
Song, Pengfei
Vareberg, Barbara J.
Kinnick, Randall R.
Greenleaf, James F.
An, Kai-Nan
Brown, Allen W.
Chen, Shigao
Quantifying spasticity in individual muscles using shear wave elastography
title Quantifying spasticity in individual muscles using shear wave elastography
title_full Quantifying spasticity in individual muscles using shear wave elastography
title_fullStr Quantifying spasticity in individual muscles using shear wave elastography
title_full_unstemmed Quantifying spasticity in individual muscles using shear wave elastography
title_short Quantifying spasticity in individual muscles using shear wave elastography
title_sort quantifying spasticity in individual muscles using shear wave elastography
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5417620/
https://www.ncbi.nlm.nih.gov/pubmed/28491186
http://dx.doi.org/10.1016/j.radcr.2017.01.004
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