A novel system of electrodes transparent to ultrasound for simultaneous detection of myoelectric activity and B-mode ultrasound images of skeletal muscles.
A novel system of electrodes transparent to ultrasound for simultaneous detection of myoelectric activity and B-mode ultrasound images of skeletal muscles.
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一个新型的电极系统，可与超声透明，以同时检测骨骼肌的肌电活动和B模式超声图像。
DOI：
10.1152/japplphysiol.00090.2013
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发表时间：
2013-10-15
期刊：
影响因子：
--
通讯作者：
Hodson-Tole EF
中科院分区：
文献类型：
--
作者：
Botter A;Vieira TM;Loram ID;Merletti R;Hodson-Tole EF
二维表面电极阵列的应用可以提供一种在肌肉上方皮肤表面绘制运动单元动作电位的方法。由此产生的肌肉组织位移可以量化，在一个平面上，使用超声（US）成像。然而，目前还不可能同时绘制激活的时空传播和由此产生的组织应变。在本文中，我们开发并测试了一种材料，可以同时测量二维表面肌电图（emg）和美国图像。设计了特定的方案来测试这种新电极材料的兼容性，包括肌电图记录和美国分析。关键结果表明：1)该电极材料的电极-皮肤阻抗与文献报道的电极阵列相似；2) US在电极-皮肤界面处的反射可以忽略；3)在肌电图中观察到缺失触点、短路和伪影的可能性不受美国探针的影响；4)美国取样组织的运动可以准确跟踪。因此，我们得出结论，这种方法将促进肌肉的多模态成像，提供关于肌肉机电功能的新的时空信息。这与通过肌肉和肌肉之间的主动和被动力传递、运动单元时空活动模式、它们随结构和任务相关功能的变化以及它们随衰老、训练-运动-废弃、神经系统疾病和损伤的适应的基本生理-生物力学有关。
Application of two-dimensional surface electrode arrays can provide a means of mapping motor unit action potentials on the skin surface above a muscle. The resulting muscle tissue displacement can be quantified, in a single plane, using ultrasound (US) imaging. Currently, however, it is not possible to simultaneously map spatio-temporal propagation of activation and resulting tissue strain. In this paper, we developed and tested a material that will enable concurrent measurement of two-dimensional surface electromyograms (EMGs) with US images. Specific protocols were designed to test the compatibility of this new electrode material, both with EMG recording and with US analysis. Key results indicate that, for this new electrode material, 1) the electrode-skin impedance is similar to that of arrays of electrodes reported in literature; 2) the reflection of US at the electrode-skin interface is negligible; 3) the likelihood of observing missing contacts, short-circuits, and artifacts in EMGs is not affected by the US probe; 4) movement of tissues sampled by US can be tracked accurately. We, therefore, conclude this approach will facilitate multimodal imaging of muscle to provide new spatio-temporal information regarding electromechanical function of muscle. This is relevant to basic physiology-biomechanics of active and passive force transmission through and between muscles, of motor unit spatio-temporal activity patterns, of their variation with architecture and task-related function, and of their adaptation with aging, training-exercise-disuse, neurological disease, and injury.
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影响因子：
2.5
作者：
Hodson-Tole, Emma F.;Loram, Ian D.;Vieira, Taian M. M.
通讯作者：
Vieira, Taian M. M.
影响因子：
2.5
作者：
Merletti, R;Farina, D;Gazzoni, M
通讯作者：
Gazzoni, M
影响因子：
3.4
作者：
Minetto, Marco Alessandro;Botter, Alberto;De Grandis, Domenico
通讯作者：
De Grandis, Domenico
DOI：
10.1615/critrevbiomedeng.v38.i4.10
发表时间：
2010-01-01
影响因子：
--
作者：
Merletti, Roberto;Aventaggiato, Matteo;Vieira, Taian M. M.
通讯作者：
Vieira, Taian M. M.
影响因子：
2.5
作者：
Gallina, Alessio;Merletti, Roberto;Vieira, Taian M. M.
通讯作者：
Vieira, Taian M. M.