• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Intrinsic brain activities to predict post-operative brain function: wide-band electrocorticographic study

Research Project

Project/Area Number 20K16601
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52020:Neurology-related
Research InstitutionHiroshima University

Principal Investigator

Neshige Shuichiro  広島大学, 病院(医), 助教 (70847996)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords脳機能 / 脳波 / 生態信号 / 運動皮質 / 広帯域脳波 / 脳機能マッピング / 運動準備電位 / ERS / ERD / てんかん / 皮質脳波 / 広帯域皮質脳波 / 内因性脳活動 / 皮質電気刺激
Outline of Research at the Start

本研究は難治部分てんかん患者の根治療法であるてんかん焦点切除術の術前脳機能評価として、内因性脳活動を広帯域皮質脳波を用いることで、侵襲性のある皮質電気刺激脳機能マッピングに依存しない、精度の高い脳機能マッピングの手法としての確立を目指し、術後機能障害の出現を事前に予測し得る生体信号限界値を明らかにすることを目的とした。さらには、本手法の普及に向けたマッピング手法としての標準化のために多施設共同研究を行うことで、手法の精度と実用性を示すことを目指す。

Outline of Final Research Achievements

Focal epileptic resection represents the sole curative treatment for refractory focal epilepsy, emphasizing the necessity of completely eliminating the epileptic focus while minimizing postoperative brain dysfunction. The objective of this study was to establish a noninvasive approach for analyzing motor-related ecological signals using wide-band cortical electroencephalography to determine the ecological signal thresholds that prevent the occurrence of postoperative dysfunction. Future research accumulating additional cases that elucidate the relationship between postoperative aftereffects and ecological signals as a limiting factor will contribute to enhancing the outcomes of patients with drug-refractory epilepsy.

Academic Significance and Societal Importance of the Research Achievements

難治部分てんかんの唯一の根治療法であるてんかん焦点切除術において、いかにてんかん焦点を完全に切除し、かつ術後脳機能障害を回避するかが最重要課題である。本研究は非侵襲的手法として広帯域皮質脳波を用いた運動関連生態信号の解析により、術後機能障害の出現を回避する生態信号限界値を明らかとする手法の確立を目指し検討を行った。今後はさらなる症例の蓄積にて術後後遺症と生態信号間の限界値としての相関を明らかにすることで、薬剤難治てんかん患者の転帰改善が期待される。本研究の治験が同手術での術後脳機能温存に寄与できれば累計発症率135人/10万人の薬剤難治てんかん患者の転帰改善が期待される。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (8 results)

All 2022 2021 2020

All Journal Article (7 results) (of which Peer Reviewed: 3 results) Presentation (1 results) (of which Invited: 1 results)

  • [Journal Article] A longitudinal seizure outcome following the COVID-19 pandemic in 2020 and 2021: Transient exacerbation or sustainable mitigation2022

    • Author(s)
      Shuichiro Neshige, Shiro Aoki, Yoshiko Takebayashi, Takeo Shishido, Yu Yamazaki, Koji Iida, Hirofumi Maruyama
    • Journal Title

      Journal of the neurological sciences

      Volume: 434 Pages: 120100-120100

    • DOI

      10.1016/j.jns.2021.120100

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Screening for non-convulsive status epilepticus with density spectrum array in critical care EEG2022

    • Author(s)
      Shuichiro Neshige, Riho Katsumata, Nezu Tomohisa, Shiro Aoki, Hirofumi Maruyama
    • Journal Title

      QJM

      Volume: 114 Issue: 12 Pages: 893-894

    • DOI

      10.1093/qjmed/hcab258

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Nationwide online EEG education during coronavirus disease 2019 pandemi2021

    • Author(s)
      Shuichiro Neshige, Narumi Ono , Takafumi Iryo, Tomoaki Watanabe , Hidetada Yamada, Naoko Mine, Yoshiko Takebayashi, Mai Kikumoto, Megumi Toko, Hirofumi Maruyama
    • Journal Title

      Clinical Neurophysiology

      Volume: 132 Issue: 11 Pages: 2763-2765

    • DOI

      10.1016/j.clinph.2021.08.010

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Socio-economic impact on epilepsy outside of the nation-wide COVID-19 pandemic area2021

    • Author(s)
      Neshige Shuichiro、Aoki Shiro、Shishido Takeo、Morino Hiroyuki、Iida Koji、Maruyama Hirofumi
    • Journal Title

      Epilepsy & Behavior

      Volume: 117 Pages: 107886-107886

    • DOI

      10.1016/j.yebeh.2021.107886

    • Related Report
      2020 Research-status Report
  • [Journal Article] Psychiatric non-epileptic seizure: diagnostic utility of density spectral array2021

    • Author(s)
      Neshige Shuichiro
    • Journal Title

      BMJ Case Reports

      Volume: 14 Issue: 1 Pages: e241015-e241015

    • DOI

      10.1136/bcr-2020-241015

    • Related Report
      2020 Research-status Report
  • [Journal Article] Multi-Spectrum Intrinsic Brain Activity for Motor Cortical Mapping as an Alternative to Electrical Cortical Stimulation2020

    • Author(s)
      Neshige Shuichiro
    • Journal Title

      Journal of the Japan Epilepsy Society

      Volume: 38 Issue: 1 Pages: 73-82

    • DOI

      10.3805/jjes.38.73

    • NAID

      130007879384

    • Related Report
      2020 Research-status Report
  • [Journal Article] Ictal electroencephalography (EEG) activity and cerebral blood flow dynamics as potential pathological indicators: a case of anti-leucine-rich glioma-inactivated 1 protein (LGI1) encephalitis2020

    • Author(s)
      Ishibashi Haruka、Neshige Shuichiro、Aoki Shiro、Ueno Hiroki、Iida Koji、Maruyama Hirofumi
    • Journal Title

      Rinsho Shinkeigaku

      Volume: 60 Issue: 11 Pages: 778-785

    • DOI

      10.5692/clinicalneurol.cn-001460

    • NAID

      130007945145

    • ISSN
      0009-918X, 1882-0654
    • Related Report
      2020 Research-status Report
  • [Presentation] MRCP, discovery of waveform to time frequency analysis for motor-related brain mapping: the past, current, and future2022

    • Author(s)
      音成秀一郎
    • Organizer
      日本臨床神経生理学会
    • Related Report
      2022 Annual Research Report
    • Invited

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi