Gordon Ronald, Rzempoluck Edward J
Electroneurophysiology Department, British Columbia Institute of Technology, Burnaby, British Columbia, Canada.
Am J Electroneurodiagnostic Technol. 2004 Jun;44(2):98-102.
Digital EEG systems allow for the creation of specialized montages not commonly available previously with analog equipment. Montages that employ the principles of local average reference techniques utilize a subset of spatially separated electrodes to produce a synthetic reference that will aid in localization. By employing these techniques, focal discharges can be visually enhanced and properly localized. The Laplacian transform is an example of a local average reference and the principles and construction of this montage are described here in brief detail. Though the montage is not suited for all situations, integration into existing lab protocols will enable technologists to provide alternative views when required in ambiguous and difficult to interpret recordings.
数字脑电图系统允许创建以前模拟设备通常无法实现的特殊导联组合。采用局部平均参考技术原理的导联组合利用空间上分离的电极子集来生成一个合成参考，这将有助于定位。通过采用这些技术，可以在视觉上增强局灶性放电并进行正确定位。拉普拉斯变换是局部平均参考的一个例子，这里简要详细描述了这种导联组合的原理和构建。尽管这种导联组合并不适用于所有情况，但将其整合到现有的实验室协议中，将使技术人员在处理模糊且难以解释的记录时，在需要时能够提供不同的视图。
