脑磁图与 EEG POSTS（睡眠中枕部正锐波）的相关性。
Magnetoencephalography correlate of EEG POSTS (positive occipital sharp transients of sleep).
机构信息
Epilepsy Center, Department of Neurology, The Cleveland Clinic, Cleveland, OH 44195, USA.
出版信息
J Clin Neurophysiol. 2013 Jun;30(3):235-7. doi: 10.1097/WNP.0b013e31827681a3.
PURPOSE
In contrast to EEG, which has guidelines for interpretation and a plethora of textbooks, the full range of activity seen in magnetoencephalography (MEG) has not been fleshed out. Currently, magnetoencephalographers apply criteria for EEG waveforms to MEG signals based on an assumption that MEG activity should have morphology that is similar to EEG. The purpose of this article was to show the characteristic MEG profile of positive occipital sharp transients of sleep.
METHODS
Simultaneous MEG-EEG recordings of two cases are shown.
RESULTS
In both the cases, the morphologic features of positive occipital sharp transients of sleep in MEG vary and sometimes mimic epileptic spikes.
CONCLUSION
This report raises a caution that a normal variant may have an even more epileptic appearance on MEG than on EEG. Using the simultaneously recorded EEG to avoid misinterpretation of spikey-looking positive occipital sharp transients of sleep in MEG is a natural and prudent practice.
目的
与具有解释指南和大量教科书的脑电图 (EEG) 相比，尚未充分阐明脑磁图 (MEG) 中所见的全部活动。目前，基于 MEG 活动应该具有类似于 EEG 的形态的假设，脑磁图学家将 EEG 波形的标准应用于 MEG 信号。本文的目的是展示睡眠中阳性枕部尖波的特征性 MEG 图谱。
方法
展示了两个病例的同时 MEG-EEG 记录。
结果
在这两种情况下，MEG 中睡眠中阳性枕部尖波的形态特征各不相同，有时类似于癫痫棘波。
结论
本报告提醒注意，与 EEG 相比，正常变异在 MEG 上可能更具癫痫样外观。使用同时记录的 EEG 来避免对 MEG 中棘状阳性枕部尖波的错误解释是一种自然和谨慎的做法。
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