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Natural history of lumbar spinal canal stenosis and its prognostic factors using an automated MRI reader.

Research Project

Project/Area Number 20K09439
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56020:Orthopedics-related
Research InstitutionWakayama Medical University

Principal Investigator

Ishimoto Yuyu  和歌山県立医科大学, 医学部, 講師 (20508030)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2021: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
KeywordsMRI / 腰部脊柱管狭窄症 / 疫学 / AI / ロコモティブシンドローム
Outline of Research at the Start

平成29-30年、申請者は国際共同研究加速基金を得て英国留学した際、この読影装置に申請者の読影を学習させ、申請者の読影と比較し高い一致率を得ることが出来た。人が読影すると多大な労力とバイアスがかかることになるが、申請者の読影を学習させた装置により追跡のMRI画像を読影させたならば、再現率100%で申請者がグレーディングしたことになる。同一者が、同じ方法で追跡の腰椎MRI読影を行うことによりLSSの発症・増悪に対するリスクファクターを解明することが出来る。また同手法で各国コホートを比較検討することで、日本人特有のLSSに対するリスクファクターを解明することが可能となる。

Outline of Final Research Achievements

While studying in the UK, the applicant collaborated on a study using SpineNet, an automated MRI reading device organised by Professor Fairbank et al. at Oxford University, and confirmed that the machine could read the applicant's readings and learn from them to produce readings that were almost identical to those of the applicant. The Wakayama Spine Study was established in 2009, and has since conducted four large-scale follow-up surveys this year, generating a vast amount of data. Using these data, the applicant, a spine surgeon, has to date clarified the prevalence of LSS and its relationship with symptoms and other degenerative spinal conditions such as lumbar spondylolisthesis from a surgeon's perspective.

Academic Significance and Societal Importance of the Research Achievements

現在に至るまで腰椎変性疾患に対する自然経過は明らかにされていない。しかしながらこれらの腰椎疾患は高齢化社会において増加の一途を辿り医療経済的にも負担となるためこれらの自然経過を知ることは喫緊の課題である。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (10 results)

All 2023 2022 2021 2020

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (6 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Association between modic changes, disc degeneration, and pelvic incidence?lumbar lordosis mismatch in a large population based cohort: the Wakayama spine study2023

    • Author(s)
      Teraguchi Masatoshi、Hashizume Hiroshi、Asai Yoshiki、Oka Hiroyuki、Nagata Keiji、Ishimoto Yuyu、Iwasaki Hiroshi、Tsutsui Shunji、Takami Masanari、Tanaka Sakae、Yoshida Munehito、Yoshimura Noriko、Yamada Hiroshi
    • Journal Title

      European Spine Journal

      Volume: online

    • DOI

      10.1007/s00586-023-07702-8

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ultrasonography is an effective tool for the evaluation of traumatic vertebral artery injuries distal to fourth cervical vertebra in the emergency room2023

    • Author(s)
      Ishimoto Yuyu、Iwasaki Hiroshi、Sonekatsu Mayumi、Murata Shizumasa、Kozaki Takuhei、Hashizume Hiroshi、Tsutsui Shunji、Takami Masanari、Nagata Keiji、Hira Kazuhiro、Kato Seiya、Yamada Hiroshi
    • Journal Title

      BMC Musculoskeletal Disorders

      Volume: 24 Issue: 1 Pages: 314-314

    • DOI

      10.1186/s12891-023-06426-6

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Is radiographic lumbar spinal stenosis associated with the quality of life?: The Wakayama Spine Study2022

    • Author(s)
      Arita S, Ishimoto Y, Hashizume H, Nagata K, Muraki S, Oka H, Takami M, Tsutsui S, Iwasaki H, Yukawa Y, Akune T, Kawaguchi H, Tanaka S, Nakamura K, Yoshida M, Yoshimura N, Yamada H
    • Journal Title

      PLOS ONE

      Volume: 17 Issue: 2 Pages: e0263930-e0263930

    • DOI

      10.1371/journal.pone.0263930

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Could automated machine-learned MRI grading aid epidemiological studies of lumbar spinal stenosis? Validation within the Wakayama spine study2020

    • Author(s)
      Ishimoto Yuyu、Jamaludin Amir、Cooper Cyrus、Walker-Bone Karen、Yamada Hiroshi、Hashizume Hiroshi、Oka Hiroyuki、Tanaka Sakae、Yoshimura Noriko、Yoshida Munehito、Urban Jill、Kadir Timor、Fairbank Jeremy
    • Journal Title

      BMC Musculoskeletal Disorders

      Volume: 21 Issue: 1 Pages: 158-158

    • DOI

      10.1186/s12891-020-3164-1

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 頚椎外傷患者における椎骨動脈閉塞は超音波検査で診断可能である2023

    • Author(s)
      石元 優々
    • Organizer
      第52回日本脊椎脊髄病学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 脊椎手術後髄液漏手術の周術期において超音波検査は有用である2023

    • Author(s)
      石元 優々
    • Organizer
      第34回日本整形外科超音波学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 超音波検査を用いた頚椎椎弓根スクリュー設置後の椎骨動脈評価  ―椎骨動脈損傷の回避を目指して―2023

    • Author(s)
      石元 優々
    • Organizer
      第34回日本整形外科超音波学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 救急外来における超音波検査による頚椎外傷患者の椎骨動脈評価とその造影CTとの比較検討2023

    • Author(s)
      石元 優々
    • Organizer
      第96回日本整形外科学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 頚椎後方固定術後の超音波検査による 椎骨動脈の血流評価2023

    • Author(s)
      石元 優々
    • Organizer
      第140回中部日本整形外科災害外科学会・学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] DISC SPACE NARROWING INFLUENCES CLINICAL SYMPTOMS MORE IN WOMEN THAN MEN: THE WAKAYAMA SPINE STUDY2021

    • Author(s)
      Yuyu Ishimoto
    • Organizer
      ISSLS
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2025-01-30  

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