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...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2017-06-01
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| Series: | Radiology Case Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1930043316302837 |
| _version_ | 1811267739656912896 |
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| author | Sarah F. Eby, BS Heng Zhao, PhD Pengfei Song, PhD Barbara J. Vareberg, OT Randall R. Kinnick, BS James F. Greenleaf, PhD Kai-Nan An, PhD Allen W. Brown, MD Shigao Chen, PhD |
| author_facet | Sarah F. Eby, BS Heng Zhao, PhD Pengfei Song, PhD Barbara J. Vareberg, OT Randall R. Kinnick, BS James F. Greenleaf, PhD Kai-Nan An, PhD Allen W. Brown, MD Shigao Chen, PhD |
| author_sort | Sarah F. Eby, BS |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-04-12T21:08:20Z |
| format | Article |
| id | doaj.art-68e48a2d5f56440c97812284aea9dfa4 |
| institution | Directory Open Access Journal |
| issn | 1930-0433 |
| language | English |
| last_indexed | 2024-04-12T21:08:20Z |
| publishDate | 2017-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Radiology Case Reports |
| spelling | doaj.art-68e48a2d5f56440c97812284aea9dfa42022-12-22T03:16:39ZengElsevierRadiology Case Reports1930-04332017-06-0112234835210.1016/j.radcr.2017.01.004Quantifying spasticity in individual muscles using shear wave elastographySarah F. Eby, BS0Heng Zhao, PhD1Pengfei Song, PhD2Barbara J. Vareberg, OT3Randall R. Kinnick, BS4James F. Greenleaf, PhD5Kai-Nan An, PhD6Allen W. Brown, MD7Shigao Chen, PhD8Mayo Medical School, Mayo Graduate School, and the Medical Scientist Training Program, College of Medicine, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USADepartment of Biomedical Engineering, College of Medicine, Mayo Clinic, Rochester, MN, USADepartment of Radiology, Mayo Clinic, Rochester, MN, USADepartment of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USADepartment of Biomedical Engineering, College of Medicine, Mayo Clinic, Rochester, MN, USADepartment of Biomedical Engineering, College of Medicine, Mayo Clinic, Rochester, MN, USABiomechanics Laboratory, Division of Orthopedic Research, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USADepartment of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USADepartment of Radiology, Mayo Clinic, Rochester, MN, USASpasticity 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.http://www.sciencedirect.com/science/article/pii/S1930043316302837Muscle spasticityStrokeUltrasoundSkeletal muscleUpper extremity |
| spellingShingle | Sarah F. Eby, BS Heng Zhao, PhD Pengfei Song, PhD Barbara J. Vareberg, OT Randall R. Kinnick, BS James F. Greenleaf, PhD Kai-Nan An, PhD Allen W. Brown, MD Shigao Chen, PhD Quantifying spasticity in individual muscles using shear wave elastography Radiology Case Reports Muscle spasticity Stroke Ultrasound Skeletal muscle Upper extremity |
| 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 | Muscle spasticity Stroke Ultrasound Skeletal muscle Upper extremity |
| url | http://www.sciencedirect.com/science/article/pii/S1930043316302837 |
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