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Elucidation of brain networks in epilepsy after pediatric acute encephalopathy using simultaneous EEG-fMRI

Research Project

Project/Area Number 22K20853
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0902:General internal medicine and related fields
Research InstitutionNagoya University

Principal Investigator

Ito Yuji  名古屋大学, 医学部附属病院, 医員 (80964783)

Project Period (FY) 2022-08-31 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
KeywordsEEG-fMRI / 急性脳症後てんかん / AESD / 脳内ネットワーク / 脳梁離断術 / 脳波-機能的MRI / 小児
Outline of Research at the Start

二相性けいれんと遅発性拡散能低下を呈する急性脳症(AESD)は、感染を契機とする小児急性脳症の約4割を占める。AESDの2~3割で難治性の脳症後てんかんを発症し、焦点発作やてんかん性スパズム、驚愕発作などの特徴的な発作型を呈するが、その病態は明らかでない。脳波-機能的MRI同時記録(EEG-fMRI)は、てんかん性活動に伴う脳内ネットワークの機能異常を非侵襲的に評価できる新規モダリティである。本研究ではAESD後てんかんに対してEEG-fMRI解析を行うことで、てんかん性活動に伴う脳内ネットワークの機能異常を明らかにし、治療効果の判定に役立てることを主目的とする。

Outline of Final Research Achievements

Two patients (three records in total) with post-AESD epilepsy were included in the analysis. Positive BOLD signals were observed in subcortical structures as well as in the bilateral frontotemporal lobes, the lesions of the acute encephalopathy. The one of two patients underwent total corpus callosotomy for epileptic spasms. After corpus callosotomy, the positive BOLD signal in the cerebral cortex was localized in the unilateral temporal lobe, and the positive BOLD signal in the subcortical structures had disappeared.
Post-AESD epilepsy appears to involve multiple epileptic foci and extensive epileptic networks, including subcortical structures. Corpus callosotomy may be effective in disconnecting this epileptic network.

Academic Significance and Societal Importance of the Research Achievements

AESD後てんかんに共通するてんかん性の脳内ネットワークの機能異常を同定し、発作に対する治療効果との関連性を確認した。また、てんかん焦点の推定も行い、その後に脳梁離断術に至った症例については、術前後でBOLD信号変化のみられた領域を比較し、術後成績との関連性を確認することができた。これにより、難治な経過をとることが多いAESD後てんかんにおいて、その治療効果の指標としてのEEG-fMRI所見が確立され、焦点切除術や脳梁離断術を含めた外科的治療の可能性が開かれることに寄与できたと考える。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (21 results)

All 2024 2023 2022

All Journal Article (11 results) (of which Peer Reviewed: 11 results,  Open Access: 7 results) Presentation (10 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Journal Article] Relationship between exercise habits and physical function in children aged 9–12 years2024

    • Author(s)
      Takahashi Daiki、Ito Tadashi、Ito Yuji、Natsume Kentaro、Noritake Koji、Ochi Nobuhiko、Sugiura Hideshi
    • Journal Title

      Nagoya Journal of Medical Science

      Volume: 86 Issue: 1 Pages: 24-35

    • DOI

      10.18999/nagjms.86.1.24

    • ISSN
      0027-7622
    • URL

      https://nagoya.repo.nii.ac.jp/records/2009334

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Decreased walking efficiency in elementary school children with developmental coordination disorder trait2023

    • Author(s)
      Ito Tadashi、Sugiura Hideshi、Ito Yuji、Nakai Akio、Narahara Sho、Noritake Koji、Takahashi Daiki、Natsume Jun、Ochi Nobuhiko
    • Journal Title

      Clinical Rehabilitation

      Volume: 37 Issue: 8 Pages: 1111-1118

    • DOI

      10.1177/02692155221150385

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Relationship between low-back pain and flexibility in children: A cross-sectional study2023

    • Author(s)
      Ito Tadashi、Sugiura Hideshi、Ito Yuji、Narahara Sho、Natsume Kentaro、Takahashi Daiki、Noritake Koji、Yamazaki Kazunori、Sakai Yoshihito、Ochi Nobuhiko
    • Journal Title

      PLOS ONE

      Volume: 18 Issue: 11 Pages: e0293408-e0293408

    • DOI

      10.1371/journal.pone.0293408

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pathological gait in Rett syndrome: Quantitative evaluation using three-dimensional gait analysis2023

    • Author(s)
      Suzuki Takeshi、Ito Yuji、Ito Tadashi、Kidokoro Hiroyuki、Noritake Koji、Tsujimura Keita、Saitoh Shinji、Yamamoto Hiroyuki、Ochi Nobuhiko、Ishihara Naoko、Yasui Izumi、Sugiura Hideshi、Nakata Tomohiko、Natsume Jun
    • Journal Title

      European Journal of Paediatric Neurology

      Volume: 42 Pages: 15-21

    • DOI

      10.1016/j.ejpn.2022.11.010

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evaluation of Muscle Oxygen Dynamics in Children’s Gait and Its Relationship with the Physiological Cost Index2023

    • Author(s)
      Shirai Yuya、Ito Tadashi、Ito Yuji、Matsunaga Naomichi、Noritake Koji、Ochi Nobuhiko、Sugiura Hideshi
    • Journal Title

      Healthcare

      Volume: 11 Issue: 2 Pages: 221-221

    • DOI

      10.3390/healthcare11020221

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gait performance and dual-task costs in school-aged children with Down syndrome2023

    • Author(s)
      ITO Yuji, ITO Tadashi, OHNO Atsuko, KUBOTA Tetsuo, TANEMURA Kaori, NARAHARA Sho, KATAOKA Erina, HYODO Reina, SUGIYAMA Yuichiro, HATTORI Tetsuo, KIDOKORO Hiroyuki, SUGIURA Hideshi, NORITAKE Koji, NATSUME Jun, OCHI Nobuhiko
    • Journal Title

      Brain and Development

      Volume: 45(3) Issue: 3 Pages: 171-178

    • DOI

      10.1016/j.braindev.2022.11.001

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Three-dimensional gait analysis of lower extremity gait parameters in Japanese children aged 6 to 12 years2022

    • Author(s)
      ITO Tadashi, NORITAKE Koji, ITO Yuji, TOMITA Hidehito, MIZUSAWA Jun, SUGIURA Hiroshi, MATSUNAGA Naomichi, OCHI Nobuhiko, SUGIURA Hideshi
    • Journal Title

      Scientifc Reports

      Volume: 12 Issue: 1 Pages: 7822-7822

    • DOI

      10.1038/s41598-022-11906-1

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantitative Three-Dimensional Gait Evaluation in Patients With Glucose Transporter 1 Deficiency Syndrome2022

    • Author(s)
      Suzuki Takeshi、Ito Yuji、Ito Tadashi、Kidokoro Hiroyuki、Noritake Koji、Hattori Ayako、Nabatame Shin、Natsume Jun
    • Journal Title

      Pediatric Neurology

      Volume: 132 Pages: 23-26

    • DOI

      10.1016/j.pediatrneurol.2022.04.012

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Physical Functions among Children before and during the COVID-19 Pandemic: A Prospective Longitudinal Observational Study (Stage 1)2022

    • Author(s)
      ITO Tadashi, SUGIURA Hideshi, ITO Yuji, NARAHARA Sho, NORITAKE Koji, TAKAHASHI Daiki, NATSUME Kentaro, OCHI Nobuhiko
    • Journal Title

      Int. J. Environ. Res. Public Health

      Volume: 19 Issue: 18 Pages: 11513-11513

    • DOI

      10.3390/ijerph191811513

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Involvement of the Thalamus, Hippocampus, and Brainstem in Hypsarrhythmia of West Syndrome: Simultaneous Recordings of Electroencephalography and fMRI Study2022

    • Author(s)
      Maki Y.、Natsume J.、Ito Y.、Okai Y.、Bagarinao E.、Yamamoto H.、Ogaya S.、Takeuchi T.、Fukasawa T.、Sawamura F.、Mitsumatsu T.、Maesawa S.、Saito R.、Takahashi Y.、Kidokoro H.
    • Journal Title

      American Journal of Neuroradiology

      Volume: 43 Issue: 10 Pages: 1502-1507

    • DOI

      10.3174/ajnr.a7646

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Physical Function of Japanese Preadolescents during the COVID-19 Pandemic2022

    • Author(s)
      Narahara Sho、Ito Tadashi、Ito Yuji、Sugiura Hideshi、Noritake Koji、Ochi Nobuhiko
    • Journal Title

      Healthcare

      Volume: 10 Issue: 12 Pages: 2553-2553

    • DOI

      10.3390/healthcare10122553

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ドラベ症候群の歩行障害に対するレボドパの有効性2024

    • Author(s)
      伊藤祐史、鈴木健史、伊藤忠、則竹耕治、城所博之、木下文恵、楢原翔、辻健史、杉浦英志、夏目淳
    • Organizer
      第44回臨床歩行分析研究会定例会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 三次元動作解析装置を用いた小児神経疾患の歩行解析2023

    • Author(s)
      伊藤祐史
    • Organizer
      第65回日本小児神経学会学術集会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 6歳の超早産児に対する三次元歩行解析を含めた多面的な運動機能評価2023

    • Author(s)
      伊藤祐史、杉山裕一朗、伊藤忠、服部哲夫、楢原翔、片岡英里奈、棚橋義浩、兵藤玲奈、城所博之、久保田哲夫、中井昭夫、越知信彦、夏目淳、加藤有一
    • Organizer
      第65回日本小児神経学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 二相性急性脳症(AESD)後てんかんにおける焦点推定と脳内ネットワークの機能異常の同定 EEG-fMRIを用いた検討2023

    • Author(s)
      光松孝真、伊藤祐史、牧祐輝、山本啓之、澤村文、前澤聡、バガリナオ・エピファニオ、吉村通、成田肇、鈴井良輔、隈井すみれ、白木杏奈、中田智彦、城所博之、夏目淳
    • Organizer
      第65回日本小児神経学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Angelman症候群の歩行の特徴 三次元歩行解析を用いた検討2023

    • Author(s)
      楢原翔、伊藤祐史、伊藤忠、白木杏奈、大野敦子、青木雄介、城所博之、服部文子、種村香里、杉浦英志、越知信彦、夏目淳
    • Organizer
      第65回日本小児神経学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Levodopa on pathological gait in Dravet syndrome: a crossover randomized trial using three-dimensional gait analysis2023

    • Author(s)
      Takeshi Suzuki, Jun Natsume, Yuji Ito, Tadashi Ito, Koji Noritake, Fumie Kinoshita, Tatsuya Fukasawa, Takeshi Tsuji, Kazuya Itomi, Hirokazu Kurahashi, Kazuo Kubota, Tohru Okanishi, Shinji Saito, Hideshi Sugiura, Hirohisa Watanabe, Yoshiyuki Takahashi, Hiroyuki Kidokoro
    • Organizer
      American Epilepsy Society Annual Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simultaneous EEG and fMRI analysis for the evaluation of epileptic focus and networks in post-encephalopathic epilepsy2023

    • Author(s)
      Takamasa Mitsumatsu, Yuji Ito, Yuki Maki, Hiroyuki Yamamoto, Fumi Sawamura, Satoshi Maesawa, Epifanio Bagarinao, Tsu Yoshimura, Hajime Narita, Ryosuke Suzui, Sumire Kumai, Anna Shiraki, Tomohiko Nakata, Hiroyuki Kidokoro, and Jun Natsume
    • Organizer
      American Epilepsy Society Annual Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Gait performance and dual-task cost in school-aged children with Down syndrome2022

    • Author(s)
      Yuji Ito, Tadashi Ito, Atsuko Ohno, Tetsuo Kubota, Kaori Tanemura, Sho Narahara, Erina Kataoka, Reina Hyodo, Yuichiro Sugiyama, Tetsuo Hattori, Hiroyuki Kidokoro, Hideshi Sugiura, Koji Noritake, Jun Natsume, and Nobuhiko Ochi.
    • Organizer
      第64回日本小児神経学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] 先天異常症候群の歩行解析2022

    • Author(s)
      伊藤祐史
    • Organizer
      愛知県医療療育総合センター発達障害研究所・共同研究セミナー
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] ウエスト症候群における視床・海馬・脳幹の関与:EEG-fMRIを用いた検討2022

    • Author(s)
      伊藤 祐史、牧 祐輝、岡井 佑、バガリナオ エピファニオ、光松 孝真、澤村 文、前澤 聡、山本 啓之、中田 智彦、城所 博之、夏目 淳
    • Organizer
      第25回日本ヒト脳機能マッピング学会
    • Related Report
      2022 Research-status Report

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Published: 2022-09-01   Modified: 2025-01-30  

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