量化癫痫患者联合视频-脑磁图发作记录中视频的贡献。

Quantifying the contribution of video in combined video-magnetoencephalographic ictal recordings of epilepsy patients.

机构信息

Department of Biomedical Engineering and Computational Science, Aalto University School of Science, P.O. Box 12200, FI-00076 AALTO, Espoo, Finland.

出版信息

Epilepsy Res. 2013 Aug;105(3):405-9. doi: 10.1016/j.eplepsyres.2013.02.017. Epub 2013 Mar 25.

DOI:10.1016/j.eplepsyres.2013.02.017

PMID:23535034

Abstract

INTRODUCTION

Magnetoencephalography (MEG) measures magnetic fields generated by neuronal currents. MEG is complementary to EEG. Considerable body of evidence indicates that ictal MEG recordings can provide useful information for pre-surgical evaluation of epilepsy patients alongside the more established long-term ictal video-EEG. Ictal MEG is recorded in some epilepsy surgery centers. However, a wider adoption of ictal MEG is hampered by lack of tools for synchronized video-MEG recording similar to those of video-EEG.

METHODS

We have augmented MEG with a synchronized behavioral video-recording system. To estimate its additional value in ictal recordings, we retrospectively analyzed recordings of 10 epilepsy patients with and without the video.

RESULTS

In six patients out of ten, adding the video substantially changed the resulting interpretations. In all six cases the effect was considerable: the number of detected seizures changed by more than 50%.

CONCLUSIONS

Synchronized video and audio recording capabilities are important for effective ictal MEG recordings of epilepsy patients.

摘要

简介

脑磁图（MEG）测量神经元电流产生的磁场。MEG 是 EEG 的补充。大量证据表明，与更成熟的长期发作视频-EEG 相比，发作期 MEG 记录可以为癫痫患者的术前评估提供有用的信息。在一些癫痫手术中心记录发作期 MEG。然而，由于缺乏类似于视频-EEG 的同步视频-MEG 记录工具，发作期 MEG 的广泛采用受到阻碍。