Hinrichs H, Heinze H J, Gaab M R
Neurologische Klinik, Medizinischen Hochschule Hannover.
EEG EMG Z Elektroenzephalogr Elektromyogr Verwandte Geb. 1992 Dec;23(4):195-202.
Several authors have presented evidence for a strict relation between regional cerebral blood flow and EEG. Therefore the EEG can serve as an adequate physiological parameter when monitoring cerebral function in the operating room. However, to exploit the inherent information as far as possible, both multichannel EEG and somatosensory evoked potentials should be recorded simultaneously. In the present article we describe a monitoring system which is capable to handle this task under the conditions of an operating room. In the first step some numerically simple algorithms are applied to detect gross artifacts. In the subsequent processing stage an analysis procedure is performed which is robust with respect to the remaining more subtile artifacts. In addition the raw signals are continually displayed on a monitor to allow for a visual evaluation of the EEG. The results of a trend analysis procedure are presented on the same graphical display by means of a compact topographical scheme. The system has been running under routine conditions for approximately two years now.
几位作者已经提供了区域脑血流量与脑电图之间存在紧密关系的证据。因此，在手术室监测脑功能时，脑电图可作为一个合适的生理参数。然而，为了尽可能充分利用其内在信息，应同时记录多通道脑电图和体感诱发电位。在本文中，我们描述了一种能够在手术室条件下完成这项任务的监测系统。第一步，应用一些数值简单的算法来检测明显的伪迹。在随后的处理阶段，执行一种对剩余更细微伪迹具有鲁棒性的分析程序。此外，原始信号持续显示在监视器上，以便对脑电图进行视觉评估。趋势分析程序的结果通过紧凑的地形图方案显示在同一图形显示器上。该系统现已在常规条件下运行了大约两年。
