方法：脑电图记录用头皮针电极以双极导联连接；
Methods:EEG was recorded by two needle electrodes punctured scalp with bipolar electrode lead;
方法：回顾分析358例显示有痫样放电的脑电图记录。
Methods: Spike waves of EEG were recorded in 358 patients and analysed in review.
目的：探讨平均参考电极技术在儿童脑电图记录中的优越性。
Objectives: To explore the advantage of electroencephalography (EEG) averaged reference electrode in children.
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