Visual evoked potentials standard (2004)
Visual evoked potentials standard (2004)
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DOI：
10.1023/b:doop.0000036790.67234.22
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发表时间：
2004-03-01
影响因子：
1.4
通讯作者：
Vaegan
中科院分区：
文献类型：
--
作者：
Odom, JV;Bach, M;Vaegan
本文介绍了视觉诱发电位（VEP）的现行（2004）标准。VEP是一种诱发的电生理电位，可以使用信号平均从头皮处记录的脑电图活动中提取。VEP可以提供关于视觉系统功能完整性的重要诊断信息。当前标准介绍了三种常用刺激条件下使用单个中线记录通道和枕部有源电极引起的基本反应。由于交叉和后交叉疾病可能会错过使用一个通道，三个通道使用中线和两个横向有源电极建议当一个超出标准和测试患者的交叉和后交叉功能障碍。模式逆转是大多数临床目的的首选技术。模式反转刺激的结果在波形和时间上比其他刺激引起的结果变化更小。模式起始/偏移技术可用于检测诈病和眼震患者，当光学因素或合作不良使模式刺激不适当时，闪光VEP特别有用。本标准的目的是，在每个临床VEP记录会话中应至少包括这些技术之一，以便所有实验室将拥有可以共享或比较的共同信息核心。
This document presents the current (2004) standard for the visual evoked potential (VEP). The VEP is an evoked electrophysiological potential that can be extracted, using signal averaging, from the electroencephalographic activity recorded at the scalp. The VEP can provide important diagnostic information regarding the functional integrity of the visual system. The current standard presents basic responses elicited by three commonly used stimulus conditions using a single, midline recording channel with an occipital, active electrode. Because chiasmal and retrochiasmal diseases may be missed using a single channel, three channels using the midline and two lateral active electrodes are suggested when one goes beyond the standard and tests patients for chiasmal and retrochiasmal dysfunction. Pattern reversal is the preferred technique for most clinical purposes. The results of pattern reversal stimuli are less variable in waveform and timing than the results elicited by other stimuli. The pattern onset/offset technique can be useful in the detection of malingering and in patients with nystagmus, and the flash VEP is particularly useful when optical factors or poor cooperation make the use of pattern stimulation inappropriate. The intent of this standard is that at least one of these techniques should be included in every clinical VEP recording session so that all laboratories will have a common core of information that can be shared or compared.