Reliability of AcuGraph system for measuring skin conductance at acupoints.
Reliability of AcuGraph system for measuring skin conductance at acupoints.
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用于测量穴位皮肤电导的 AcuGraph 系统的可靠性。
DOI：
10.1136/aim.2010.003012
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
Colbert,AgathaP
中科院分区：
文献类型：
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作者：
Mist,ScottD;Aickin,Mikel;Kalnins,Paul;Cleaver,Jim;Batchelor,Roger;Thorne,Tracy;Chamberlin,Steve;Tippens,Kim;Colbert,AgathaP
目的市面上有许多电导测量仪器，但对其可靠性的了解甚少。本研究的目的是量化测量变异性和评估AcuGraph系统的可靠性-一种常用的皮肤电筛查设备。方法采用四项实验测量电导测量系统测量的电导变异性。第一种方法是测量已知的电阻。第二组测量了非人类的有机物质。第三个是对30名健康志愿者的元源和井点进行测试-再测试评估，这些志愿者由一名操作员进行测量。第四项是对元源和井井穴位的七名针灸师在两个时间点对四个人进行互操作可靠性评估。结果对于已知的电阻器，AcuGraph在操作人员和重新测试之间的平均变异系数（CV）为1.8%。在非人体有机材料上，AcuGraph的平均CV值分别为0.9%和2.8%。当一个作业者测试30个参与者时，jing - wellpoint的源点和源点的平均可靠性分别为0.86和0.76，CV分别为23.2%和25.9%。7位针灸师的平均CV值分别为：元源穴24.5%和井井穴23.7%。结论该仪器能准确、可靠地测量已知电阻器和有机质。一名操作人员记录的穴位皮肤电导也可靠。7个不同操作人员获得的皮肤电记录一致性较差。操作者的培训和技术改进可以提高操作者之间的一致性。
ObjectiveThere are many commercially available instruments for measuring electrical conductance, but there is little information about their reliability. The aim of this study was to quantify measurement variability and assess reliability of the AcuGraph system—a commonly used electrodermal screening device.MethodsFour experiments were conducted to measure variability in electrical conductance readings obtained by the AcuGraph system. The first involved measuring known resistors. The second measured non-human organic matter. The third was a test–retest assessment of theYuan-SourceandJing-Wellpoints in 30 healthy volunteers who were measured by a single operator. The fourth was an interoperator reliability evaluation of seven acupuncturists at theYuan-SourceandJing-Wellacupoints on four individuals at two time points.ResultsAgainst known resistors, the AcuGraph had an average coefficient of variability (CV) of 1.8% between operators and test–retests. On non-human organic material the AcuGraph had an average CV of 0.9% and 2.8%. When a single operator tested 30 participants, the average reliability for theYuan-Sourcepoints was 0.86 and 0.76 forJing-Wellpoints with a CV of 23.2% and 25.9% respectively. The average CV for the seven acupuncturists was 24.5% onYuan-Sourcepoints and 23.7% onJing-Wellpoints.ConclusionsThe AcuGraph measures known resistors and organic matter accurately and reliably. Skin conductance at acupoints recorded by one operator was also reliable. There was less consistency in electrodermal recordings obtained by seven different operators. Operator training and technical improvements to the AcuGraph may improve consistency among operators.