High Frequency Oscillations in Epilepsy: Detection Methods and Considerations in Clinical Application
نویسندگان
چکیده
منابع مشابه
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Data mining neocortical high-frequency oscillations in epilepsy and controls.
Transient high-frequency (100-500 Hz) oscillations of the local field potential have been studied extensively in human mesial temporal lobe. Previous studies report that both ripple (100-250 Hz) and fast ripple (250-500 Hz) oscillations are increased in the seizure-onset zone of patients with mesial temporal lobe epilepsy. Comparatively little is known, however, about their spatial distribution...
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High-frequency oscillations (HFO; gamma: 40-100 Hz, ripples: 100-200 Hz, and fast ripples: 250-500 Hz) have been widely studied in health and disease. These phenomena may serve as biomarkers for epileptic brain; however, a means of differentiating between pathological and normal physiological HFO is essential. We categorized task-induced physiological HFO during periods of HFO induced by a visu...
متن کاملHigh-Frequency Oscillations and Their Importance in Epilepsy
High-frequency oscillations are changes in electrical potentials in the EEG in frequencies above 80 Hz. In recent years it was discovered that these oscillations have great importance both in physiologic processes and as an expression of epileptogenic areas in the cerebral cortex. The measurement of these oscillations via depth-electrodes during pre-surgical evaluation of epilepsy patients has ...
متن کاملHigh-frequency oscillations and seizure generation in neocortical epilepsy.
Neocortical seizures are often poorly localized, explosive and widespread at onset, making them poorly amenable to epilepsy surgery in the absence of associated focal brain lesions. We describe, for the first time in an unselected group of patients with neocortical epilepsy, the finding that high-frequency (60-100 Hz) epileptiform oscillations are highly localized in the seizure onset zone, bot...
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ژورنال
عنوان ژورنال: Journal of Epilepsy Research
سال: 2019
ISSN: 2233-6249,2233-6257
DOI: 10.14581/jer.19001