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Ultrasound Strain Imaging to Assess the Biceps Brachii Muscle in Chronic Poststroke Spasticity

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收录情况: ◇ SCIE ◇ EI

机构: [1]Departments of Radiology, Weill Cornell Medicine, New York, New York USA [2]Departments of Rehabilitation Medicine, Weill Cornell Medicine, New York, New York USA [3]Rocky Vista University, Ivins, Utah USA [4]Electrical Engineering College, National Taiwan University, Taipei, Taiwan [5]Beijing Tiantan Hospital, Capital Medical University, Beijing, China [6]Department of Radiology, University of Michigan, Ann Arbor, Michigan USA [7]and Veterans Affairs Ann Arbor Health System, Ann Arbor, Michigan USA
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关键词: biceps brachii muscle elastography musculoskeletal (diagnostic) poststroke spasticity ultrasound strain

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ObjectivesThe aim of the study was to assess the feasibility of ultrasound strain imaging in characterizing the biceps brachii muscle in chronic poststroke spasticity. MethodsWe prospectively analyzed strain imaging data from bilateral biceps brachii muscles in 8 healthy volunteers and 7 patients with poststroke chronic spasticity. Axial deformations of the biceps brachii muscle and overlying subcutaneous tissue were produced by external compression using a sandbag (1.0kg) attached to a transducer. The lengthening and shortening of the biceps brachii muscle and subcutaneous tissue were produced by manual passive elbow extension (from 90 degrees to 0 degrees) and flexion (from 0 degrees to 90 degrees), respectively. We used offline 2-dimensional speckle tracking to estimate axial and longitudinal strain ratios (biceps brachii strain/subcutaneous tissue strain), and the longitudinal tissue velocity of the biceps brachii muscle. Statistical analyses included analysis of variance for testing differences in strain imaging parameters among healthy, nonspastic, and spastic biceps brachii muscles, the Bonferroni correction for further testing differences in US strain imaging among paired groups (healthy versus spastic, nonspastic versus spastic, and healthy versus nonspastic), and the Pearson correlation coefficient for assessing the intraobserver reliability of performing strain imaging in stroke survivors. ResultsThe differences in strain imaging parameters between healthy and spastic and between nonspastic and spastic biceps brachii muscles were significant at both 90 degrees elbow flexion and maximal elbow extension (P<.01). There was no significant difference in axial strain ratios at 90 degrees of elbow flexion or longitudinal tissue velocities between healthy and nonspastic muscles (P>.05). The intraobserver reliability of performing strain imaging in stroke survivors was good (r=0.85; P<.01). ConclusionsUltrasound strain imaging seems to be feasible for characterizing the biceps brachii muscle in chronic poststroke spasticity.

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出版当年[2017]版:
大类 | 4 区 医学
小类 | 3 区 声学 4 区 核医学
最新[2023]版:
大类 | 4 区 医学
小类 | 3 区 声学 4 区 核医学
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出版当年[2016]版:
Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Q3 ACOUSTICS
最新[2023]版:
Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Q2 ACOUSTICS

影响因子: 最新[2023版] 最新五年平均 出版当年[2016版] 出版当年五年平均 出版前一年[2015版] 出版后一年[2017版]

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第一作者机构: [1]Departments of Radiology, Weill Cornell Medicine, New York, New York USA [3]Rocky Vista University, Ivins, Utah USA [*1]Ultrasound in Education & Research, Rocky Vista University, 255 E Center St, Room C286, Ivins, UT 84738 USA.
通讯作者:
通讯机构: [1]Departments of Radiology, Weill Cornell Medicine, New York, New York USA [3]Rocky Vista University, Ivins, Utah USA [*1]Ultrasound in Education & Research, Rocky Vista University, 255 E Center St, Room C286, Ivins, UT 84738 USA.
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