Advances of Intracranial Electroencephalography in Localizing the Epileptogenic Zone

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• 作者：Bo Jin ; Norman K. So ; Shuang Wang
• 关键词：Epilepsy ; Intracranial electroencephalography ; Epileptogenic zone
• 刊名：Neuroscience Bulletin
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：32
• 期：5
• 页码：493-500
• 全文大小：397 KB
• 刊物主题：Neurosciences; Human Physiology; Anesthesiology; Anatomy; Neurology; Pain Medicine;
• 出版者：Springer Berlin Heidelberg
• ISSN：1995-8218
• 卷排序：32

文摘

Intracranial electroencephalography (iEEG) provides the best precision in estimating the location and boundary of an epileptogenic zone. Analysis of iEEG in the routine EEG frequency range (0.5–70 Hz) remains the basis in clinical practice. Low-voltage fast activity is the most commonly reported ictal onset pattern in neocortical epilepsy, and low-frequency high-amplitude repetitive spiking is the most commonly reported ictal onset pattern in mesial temporal lobe epilepsy. Recent studies using wideband EEG recording have demonstrated that examining higher (80–1000 Hz) and lower (0.016–0.5 Hz) EEG frequencies can provide additional diagnostic information and help to improve the surgical outcome. In addition, novel computational techniques of iEEG signal analysis have provided new insights into the epileptic network. Here, we review some of these recent advances. Although these sophisticated and advanced techniques of iEEG analysis show promise in localizing the epileptogenic zone, their utility needs to be further validated in larger studies.