Ebersole J S, Leroy R F
Neurology. 1983 Jan;33(1):8-18. doi: 10.1212/wnl.33.1.8.
Although they are clearly useful for generalized ictal events, the ability of ambulatory, cassette EEG systems to detect interictal abnormalities routinely remains in question. The EEGs of 25 patients have been simultaneously monitored by cable telemetry and Oxford Medilog recorder, using a three-channel montage. Output from the cassette recorder amplifiers was of high fidelity compared to cable telemetry, and EEG reproduction from tape suffered only minimal signal degradation. Ambulatory EEG detection rate for interictal abnormalities averaged 85% and was commensurate with the montage design study. Perceptual demand during video scanning, including the recognition of normal transients and artifacts, was addressed as an important limiting factor. Ambulatory EEG monitoring by cassette recorder appears to be a useful intermediate-level screening technique for epileptiform abnormalities, both ictal and interictal.
尽管动态盒式脑电图系统对于全身性发作事件显然是有用的，但其常规检测发作间期异常的能力仍存在疑问。使用三通道导联，通过有线遥测和牛津Medilog记录仪同时监测了25例患者的脑电图。与有线遥测相比，盒式记录仪放大器的输出具有高保真度，并且磁带记录的脑电图信号仅出现最小程度的衰减。发作间期异常的动态脑电图检测率平均为85%，与导联设计研究结果相当。视频扫描过程中的感知需求，包括对正常瞬变和伪迹的识别，被认为是一个重要的限制因素。通过盒式记录仪进行动态脑电图监测似乎是一种用于检测发作期和发作间期癫痫样异常的有用的中级筛查技术。
