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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...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2017
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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. |
format | Online Article Text |
id | pubmed-5417620 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
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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