AUTOMATIC-ANALYSIS OF THE EMG INTERFERENCE PATTERN
AUTOMATIC-ANALYSIS OF THE EMG INTERFERENCE PATTERN
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DOI：
10.1016/0013-4694(83)90035-4
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发表时间：
1983-01-01
期刊：
影响因子：
--
通讯作者：
ERICSSON, M
中科院分区：
文献类型：
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作者：
STALBERG, E;CHU, J;ERICSSON, M
描述了一种在可选的非控制力水平下获得的肌电图干扰模式的自动分析方法。它是对威利森测量信号匝数和幅度的方法的改进。在该方法中，对20个记录点中的每个点在300 ms期间获得的匝数绘制平均振幅。使用不同的自愿强度，得到一个散点。为健康[人类]受试者构建了包含这些点的置信限，使用同心圆和单极电极对4种不同的肌肉进行测量。正常值因年龄、肌肉、性别和电极而异。该方法对肌病或神经源性肌电图患者进行了测试，获得了很高的诊断率。该方法具有客观、重复性好、快速、所需计算机设备较少等特点。
A method is described for the automatic analysis of EMG [electromyographic] interference patterns obtained at optional non-controlled force levels. It is a modification of Willison''s method of measuring turns and amplitude of the signal. In the method, the mean amplitude is plotted against turns obtained during 300 ms for each of 20 recording sites. Different voluntary strengths are used and a scatter of points is obtained. Confidence limits enclosing these points are constructed for healthy [human] subjects for 4 different muscles with concentric and monopolar electrodes. The normal values differ with age, muscle, sex and electrode. The method is tested on patients with myopathic or neurogenic EMG and a high diagnostic yield is obtained. The method is objective, reproducible, fast and needs relatively small computer facilities.