A practice of caution: spontaneous action potentials or artifactual spikes?
A practice of caution: spontaneous action potentials or artifactual spikes?
复制标题
谨慎实践：自发动作电位还是人为尖峰？
DOI：
10.1186/1743-0003-12-5
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发表时间：
2015-01-13
影响因子：
5.1
通讯作者：
Zhou P
中科院分区：
文献类型：
--
作者：
Jahanmiri-Nezhad F;Li X;Rymer WZ;Zhou P
背景高密度表面肌电图（EMG）技术是一种记录自发性肌肉活动的电极阵列技术，它对神经肌肉疾病的诊断和实验室神经生理学研究都具有重要意义。这个简短的报告解决了一个实际问题，我们已经经历了在记录过程中使用电极阵列的自发肌肉活动与主要neuromuscular disorders.FindingsWe显示，记录文物可以出现类似的自发动作电位尖峰。此外，因果滤波器可能引起伪影的不对称失真，从而将其与真实的动作电位尖峰混淆。因此，对于单通道表面EMG记录，可能难以判断电压瞬变是真实的动作电位还是伪影。阵列的其他通道之间的信号分布的进一步调查，可以用来达到一个更有信心的judgment.ConclusionsDuring检查使用电极阵列的自发肌肉活动，需要谨慎区分的生理信号从人为的尖峰，这是重要的诊断或诊断信息的准确提取。
BackgroundHigh density surface electromyogram (EMG) techniques with electrode arrays have been used to record spontaneous muscle activity, which is important, both for supporting the diagnosis of neuromuscular diseases and for laboratory based neurophysiological investigations. This short report addresses a practical issue we have experienced during recording of spontaneous muscle activity using electrode arrays from subjects with major neuromuscular disorders.FindingsWe show that recording artifacts can appear similar to spontaneous action potential spikes. Moreover, a causal filter may induce asymmetric distortions of an artifact and thus confuse it with a real action potential spike. As a consequence, for a single channel surface EMG recording, it might be difficult to judge whether a voltage transient is a real action potential or an artifact. Further investigation of the signal distributions among other channels of the array can be used to reach a more confident judgment.ConclusionsDuring examination of spontaneous muscle activity using electrode arrays, caution is required for differentiation of physiological signals from artifactual spikes, which is important for accurate extraction of diagnostic or investigatory information.
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影响因子：
9.9
作者：
Kleine, Bert U.;Stegeman, Dick F.;Zwarts, Machiel J.
通讯作者：
Zwarts, Machiel J.
影响因子：
4.6
作者：
Lowery, MM;Stoykov, NS;Kuiken, TA
通讯作者：
Kuiken, TA
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：
1.9
作者：
Farina, D;Cescon, C;Merletti, R
通讯作者：
Merletti, R
影响因子：
5.1
作者：
Kendell C;Lemaire ED;Losier Y;Wilson A;Chan A;Hudgins B
通讯作者：
Hudgins B