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

Assessment of neurodevelopmental outcomes in preterm infants using by diffusion tensor imaging.

Research Project

Project/Area Number 15K19661
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Embryonic/Neonatal medicine
Research InstitutionKyoto Prefectural University of Medicine

Principal Investigator

Hasegawa Tatsuji  京都府立医科大学, 医学(系)研究科(研究院), 助教 (80438217)

Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords低出生体重児 / 拡散テンソル画像 / トラクトグラフィー / 脳性麻痺 / 小脳 / 早産児 / 脳梁
Outline of Final Research Achievements

Diffusion tensor imaging (DTI) is a useful tool for investigating the subtle lesions which cannot be detected with conventional MRI.
Quantitative DTI at term-equivalent age demonstrated that the infants with cerebral palsy (CP) had abnormalities of DTI parameters in the cerebellar peduncles and the sensory tract. Hence, our results suggest that injury to ascending tracts such as the superior cerebellar peduncles and sensory tract may indicate CP risk, and that additional middle cerebellar peduncles injury may indicate severe CP risk.
Quantitative DTI assessment at term-equivalent age may be useful for screening preterm infants at a risk of future motor impairments. Early screening of the infants with high CP risk may facilitate early intervention in order to achieve better motor function outcomes.

Academic Significance and Societal Importance of the Research Achievements

早産児は脳性麻痺などの運動機能障害のリスクが高いが通常の頭部MRIでは脳性麻痺のリスクを十分に評価することができない。
今回の研究では、修正満期(修正37-41週)という脳性麻痺発症前に撮像した拡散テンソル画像を用いることによって、上小脳脚、感覚路の障害を認めた児は脳性麻痺を発症するリスクがあり、さらに中小脳脚が障害されていると脳性麻痺の重症度が上がる、ことが示された。
拡散テンソル画像を用いることにより、早期に脳性麻痺の発症リスクをスクリーニングでき、早期に理学療法などの介入が可能となると考えられた。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (6 results)

All 2019 2018 2017 2016 2015

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Acknowledgement Compliant: 1 results) Presentation (2 results)

  • [Journal Article] Cerebellar peduncle injury predicts motor impairments in preterm infants: A quantitative tractography study at term-equivalent age2018

    • Author(s)
      Hasegawa Tatsuji、Yamada Kei、Tozawa Takenori、Chiyonobu Tomohiro、Tokuda Sachiko、Nishimura Akira、Hosoi Hajime、Morimoto Masafumi
    • Journal Title

      Brain and Development

      Volume: 40 Issue: 9 Pages: 743-752

    • DOI

      10.1016/j.braindev.2018.04.013

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cerebellar peduncle injury predicts motor impairments in preterm infants: A quantitative tractography study at term-equivalent age.2018

    • Author(s)
      Hasegawa T, Yamada K, Tozawa T, Chiyonobu T, Tokuda S, Nishimura A, Hosoi H, Morimoto M.
    • Journal Title

      Brain & Development

      Volume: 印刷中

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Longitudinal change in white matter in preterm infants without magnetic resonance imaging abnormalities: Assessment of serial diffusion tensor imaging and their relationship to neurodevelopmental outcomes.2017

    • Author(s)
      Kidowaki S, Morimoto M, Yamada K, Sakai K, Zuiki M, Maeda H, Yamashita S, Morita T, Hasegawa T, Chiyonobu T, Tokuda S, Hosoi H.
    • Journal Title

      Brain and Development

      Volume: 39 Issue: 1 Pages: 40-47

    • DOI

      10.1016/j.braindev.2016.07.007

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Low-grade intraventricular hemorrhage disrupts cerebellar white matter in preterm infants: evidence from diffusion tensor imaging2015

    • Author(s)
      Takashi Morita, Masafumi Morimoto, Kei Yamada, Tatsuji Hasegawa, Shigemi Morioka, Satoshi Kidowaki, Masaharu Moroto, Satoshi Yamashita, Hiroshi Maeda, Tomohiro Chiyonobu, Sachiko Tokuda, Hajime Hosoi
    • Journal Title

      Neuroradiology

      Volume: 57 Issue: 5 Pages: 507-514

    • DOI

      10.1007/s00234-015-1487-7

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 早産児における軽症脳室内出血が、 小脳と3歳時の発達予後に与える影響 :拡散テンソル画像を用いた定量的な評価2019

    • Author(s)
      阪上智俊、長谷川龍志、一瀬栄佑、髙井あかり、 全有耳、吉田路子、戸澤雄紀、千代延友裕、森本昌史
    • Organizer
      第61回日本小児神経学会学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 早産児の経時的な拡散パラメーターの変化についての検討2016

    • Author(s)
      木戸脇智志、森本昌史、瑞木匡、前田裕史、山下哲史、森田高史、長谷川龍志、千代延友裕、徳田幸子、細井創
    • Organizer
      日本小児科学会学術集会
    • Place of Presentation
      ロイトン札幌
    • Year and Date
      2016-05-13
    • Related Report
      2015 Research-status Report

URL: 

Published: 2015-04-16   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi