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ID 55201
JaLCDOI
フルテキストURL
Thumnail 71_3_191.pdf 9.86 MB
著者
Kobayashi, Katsuhiro Department of Child Neurology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Akiyama, Tomoyuki Department of Child Neurology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Agari, Takashi Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Sasaki, Tatsuya Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Shibata, Takashi Department of Child Neurology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Hanaoka, Yoshiyuki Department of Child Neurology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Akiyama, Mari Epilepsy Center, Okayama University Hospital
Endoh, Fumika Department of Child Neurology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Oka, Makio Epilepsy Center, Okayama University Hospital
Date, Isao Department of Child Neurology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences ORCID Kaken ID publons researchmap
抄録
 Electroencephalogram (EEG) data include broadband electrical brain activity ranging from infra-slow bands (< 0.1 Hz) to traditional frequency bands (e.g., the approx. 10 Hz alpha rhythm) to high-frequency bands of up to 500 Hz. High-frequency oscillations (HFOs) including ripple and fast ripple oscillations (80-200 Hz and>200 / 250 Hz, respectively) are particularly of note due to their very close relationship to epileptogenicity, with the possibility that they could function as a surrogate biomarker of epileptogenicity. In contrast, physiological high-frequency activity plays an important role in higher brain functions, and the differentiation between pathological / epileptic and physiological HFOs is a critical issue, especially in epilepsy surgery. HFOs were initially recorded with intracranial electrodes in patients with intractable epilepsy as part of a long-term invasive seizure monitoring study. However, fast oscillations (FOs) in the ripple and gamma bands (40-80 Hz) are now noninvasively detected by scalp EEG and magnetoencephalography, and thus the scope of studies on HFOs /FOs is rapidly expanding.
キーワード
fast oscillations, epilepsy
electroencephalogram
time-frequency analysis
Amo Type
Review
発行日
2017-06
出版物タイトル
Acta Medica Okayama
71巻
3号
出版者
Okayama University Medical School
開始ページ
191
終了ページ
200
ISSN
0386-300X
NCID
AA00508441
資料タイプ
学術雑誌論文
言語
English
著作権者
CopyrightⒸ 2017 by Okayama University Medical School
論文のバージョン
publisher
査読
有り
PubMed ID