Utilizing a handheld electrode array for localized muscle impedance measurements.

Utilizing a handheld electrode array for localized muscle impedance measurements.
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DOI:
10.1002/mus.23307
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发表时间:
2012-08
期刊:
影响因子:
3.4
通讯作者:
Rutkove, Seward B.
Rutkove, Seward B.
中科院分区:
医学3区
文献类型:
--
作者:
Narayanaswami, Pushpa;Spieker, Andrew J.;Mongiovi, Phillip;Keel, John C.;Muzin, Stefan C.;Rutkove, Seward B.

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电阻抗肌图(EIM)是一种用于评估肌肉健康的非侵入性技术,它是将高频、低幅度的电流施加到肌肉上的皮肤上,并测量产生的表面电压。我们以前使用的是粘合电极,使用起来不方便。我们使用手持电极阵列(HEA)呈现数据,该电极阵列是为了在临床环境中加速EIM过程而设计的。34名健康志愿者和24名神经根病患者使用HEA和粘连电极进行了EIM测试。HEA具有良好的重测重复性,组内相关系数高达0.99。在健康志愿者(P<0.001)和神经根病患者(P<0.001)中,HEA数据与粘连电极的数据有很强的相关性,ρ=0.85,ρ=0.75。这些数据支持手持阵列用于执行快速局部表面阻抗测量的潜在用途。
Electrical impedance myography (EIM) is a non-invasive technique used for assessment of muscle health in which a high-frequency, low-amplitude electric current is applied to the skin overlying a muscle, and the resulting surface voltage is measured. We have previously used adhesive electrodes, application of which is inconvenient. We present data using a handheld electrode array (HEA) that we devised to expedite the EIM procedure in a clinical setting. Thirty-four healthy volunteers and 24 radiculopathy subjects underwent EIM testing using the HEA and adhesive electrodes. The HEA was shown to have good test-retest reproducibility, with intraclass correlation coefficients as high as 0.99. HEA data correlated strongly with data from adhesive electrodes, ρ = 0.85 in healthy volunteers (p < 0.001) and ρ = 0.75 in radiculopathy subjects (p < 0.001). These data support the potential use of a handheld array for performing rapid localized surface impedance measurements.
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