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Development of a computer aided system for detecting early CT signs of hyperacute stroke

Research Project

Project/Area Number 19591402
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Radiation science
Research InstitutionNiigata University

Principal Investigator

SAI Tokugi  Niigata University, 医歯学系, 教授 (50178464)

Co-Investigator(Kenkyū-buntansha) KIMURA Motomasa  新潟大学, 医歯学系, 教授 (30161582)
LEE Yongbum  新潟大学, 医歯学系, 助授 (10334658)
Research Collaborator TAKAHASHI Noriyuki  新潟大学, 大学院・保健学研究科・後期課程, 院生
Project Period (FY) 2007 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2007: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords医用画像工学 / 画像診断支援システム / CT / 画像処理 / 急性脳梗塞 / 脳梗塞 / コンピュータ診断支援(CAD) / コンピュータ支援診断(CAD)
Research Abstract

本研究の目的は,CT画像における急性期脳梗塞の早期CTサインの検出のためのコンピュータ支援診断システムを開発することである.このため,虚血領域の強調・検出・視覚化の3つの方法を開発した.臨床画像にこれらの手法を適用した結果,臨床的有用性が認められた.このシステムの完成は,超急性期脳梗塞の低吸収域検出能力の更なる向上につながると考える.本研究が,急性期脳梗塞診療における患者予後向上の一助になることを期待する.

Report

(4 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (28 results)

All 2010 2009 2008 2007 Other

All Journal Article (13 results) (of which Peer Reviewed: 12 results) Presentation (11 results) Remarks (4 results)

  • [Journal Article] Z-score Mapping Method for Extracting Hypoattenuation Areas of Hyperacute Stroke in Unenhanced CT2010

    • Author(s)
      Noriyuki Takahashi, Du-Yih Tsai, Yongbum Lee, Toshibumi Kinoshita, Kiyoshi Ishii
    • Journal Title

      Academic Radiology 17(1)

      Pages: 84-92

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Z-score Mapping Method for Extracting Hypoattenuation Areas of Hyperacute Stroke in Unenhanced CT2010

    • Author(s)
      Noriyuki Takahashi Du-Yih Tsai, Yongbum Lee
    • Journal Title

      Academic Radiology 17

      Pages: 84-92

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Improvement of Detection of Hypoattenuation in Acute Ischemic Stroke in Unenhanced CT using an Adaptive Smoothing Filter2008

    • Author(s)
      Noriyuki Takahashi, Yongbum Lee, Du-Yih Tsai, Kiyoshi Ishii, Motomasa Kimura
    • Journal Title

      Acta Radiologica 49(7)

      Pages: 816-826

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] 頭部単純CT画像における急性期脳梗塞の存在判定アルゴリズムの一提案2008

    • Author(s)
      李鎔範, 高橋規之, 蔡(佐井)篤儀, 石井清
    • Journal Title

      電子情報通信学会論文誌 vol.J91-D,no.7

      Pages: 1914-1917

    • NAID

      110007381111

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] 左右脳領域の面積差を利用した急性期脳梗塞のCT画像支援診断アルゴリズム2008

    • Author(s)
      李鎔範, 高橋規之, 蔡(佐井)篤儀, 石井清
    • Journal Title

      新潟大学医学部保健学科紀要 vol.9,no.1

      Pages: 63-68

    • NAID

      110006658400

    • Related Report
      2009 Final Research Report
  • [Journal Article] Improvement of Detection of Hypoattenuation in Acute Ischemic Stroke in Unenhanced CT using an Adaptive Smoothing Filter2008

    • Author(s)
      Noriyuki Takahashi
    • Journal Title

      Acta Radiologica 49

      Pages: 816-826

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 頭部単純CT画像における急性期脳梗塞の存在判定アルゴリズムの一提案2008

    • Author(s)
      李 鎔範
    • Journal Title

      電子情報通信学会論文誌 J91-D

      Pages: 1914-1917

    • NAID

      110007381111

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] CT画像における早期虚血サイン検出アルゴリズムの開発2007

    • Author(s)
      高橋規之, 李鎔範, 蔡(佐井)篤儀, 石井清
    • Journal Title

      日本放射線技術学会雑誌 63(8)

      Pages: 835-842

    • NAID

      110006386589

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Adaptive Partial Median Filter for Early CT Signs of Acute Cerebral Infarction2007

    • Author(s)
      Yongbum Lee, Noriyuki Takahashi, Du-Yih Tsai, Kiyoshi Ishii
    • Journal Title

      International Journal of Computer Assisted Radiology and Surgery vol.2

      Pages: 105-115

    • NAID

      120006740014

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] A novel noise reduction filter for improving visibility of early CT signs of hyperacute stroke: evaluation of the filter's performance-Preliminary clinical experience-2007

    • Author(s)
      Noriyuki Takahashi, Yongbum Lee, Du-Yih Tsai, Kiyoshi Ishii
    • Journal Title

      Radiation Medicine vol.25

      Pages: 247-254

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] CT画像における早期虚血サイン検出アルゴリズムの開発2007

    • Author(s)
      高橋 規之
    • Journal Title

      日本放射線技術学会雑誌 63

      Pages: 835-842

    • NAID

      110006386589

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Adaptive Partial Median Filter for Early CT Signs of Acute Cerebral Infarction2007

    • Author(s)
      Yongbum Lee
    • Journal Title

      International Journal of Computer Assisted Radiology and Surgery 2

      Pages: 105-115

    • NAID

      120006740014

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A novel noise reduction filter for improving visibility of early CT signs of hyperacute stroke: evaluation of the filter's performance-Preliminary clinical experience-2007

    • Author(s)
      Noriyuki Takahashi
    • Journal Title

      Radiation Medicine 25

      Pages: 247-254

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Hyperacute Stroke in Unenhanced CT: Z-score Mapping Improves Radiologists' Performance in Quantification of Hypoattenuation Areas2009

    • Author(s)
      Noriyuki Takahashi, Du-Yih Tsai, Yongbum Lee, Kiyoshi Ishii, Toshibumi Kinoshita, Hajime Tamura, Kenro Iwaki, Shoki Takahashi
    • Organizer
      95th Scientific Assembly and Annual Meeting of Radiological Society of North America (RSNA2009)
    • Place of Presentation
      Chicago, USA
    • Related Report
      2009 Final Research Report
  • [Presentation] 単純CTにおけるZ-scoreマッピング法による急性期脳梗塞虚血範囲判定の改善2009

    • Author(s)
      高橋規之, 李鎔範, 蔡篤儀, 石井清, 伊藤道明, 岩城賢郎
    • Organizer
      日本放射線技術学会第37回秋季学術大会
    • Place of Presentation
      岡山
    • Related Report
      2009 Final Research Report
  • [Presentation] 単純CTにおける急性期脳梗塞虚血範囲判定の改善:観察者実験によるz-scoreマッピング法の評価2009

    • Author(s)
      高橋規之, 岩城賢郎, 李鎔範, 蔡篤儀, 木下俊文, 伊藤道明, 石井清
    • Organizer
      日本放射線技術学会第東北部会第47回学術大会
    • Place of Presentation
      秋田
    • Related Report
      2009 Final Research Report
  • [Presentation] Z-score Mapping Based on a Voxe-by-voxel Analysis: Can it Help Quantify Hypoattenuation Areas of Hyperacute Stroke in Unenhanced CT?2009

    • Author(s)
      Noriyuki Takahashi, Yongbum Lee, Du-Yih Tsai, Kiyoshi Ishi, Toshibumi Kinoshita, Kenrou Iwaki
    • Organizer
      94th Scientific Assembly and Annual Meeting of Radiological Society of North America (RSNA2008)
    • Place of Presentation
      Chicago, America
    • Related Report
      2009 Final Research Report
  • [Presentation] Computer-aided Detection Scheme for Detection of Hyperacute Stroke in Unenhanced CT2009

    • Author(s)
      Noriyuki Takahashi, Yongbum Lee, Du-Yih Tsai, Kiyoshi Ishi
    • Organizer
      92nd Scientific Assembly and Annual Meeting of Radiological Society of North America (RSNA2007)
    • Place of Presentation
      Chicago, America
    • Related Report
      2009 Final Research Report
  • [Presentation] Hyperacute Stroke in Unenhanced CT : Z-score Mapping Improves Radiologists' Performance in Quantification of Hypoattenuation Areas2009

    • Author(s)
      Noriyuki Takahashi, Du-Yih Tsai Yonbum Lee
    • Organizer
      95th Scientific Assembly and Annual Meeting of Radiological Society of North America (RSNA2009)
    • Place of Presentation
      Chicago, America (USA)
    • Related Report
      2009 Annual Research Report
  • [Presentation] Z-score Mapping Based on a Voxel-by-voxel Analysis : Can it Help Quantify Hypoattenuation Areas of Hyperacute Stroke in Unenhanced CT?2008

    • Author(s)
      Noriyuki Takahashi
    • Organizer
      94th Scientific Assembly and Annual Meeting of Radiological Society of North America (RSNA2008)
    • Place of Presentation
      Chicago, America (USA)
    • Related Report
      2008 Annual Research Report
  • [Presentation] 頭部CT画像における急性期脳梗塞の存在判定アルゴリズムの検討2007

    • Author(s)
      李鎔範, 高橋則之, 蔡(佐井)篤儀, 石井清
    • Organizer
      医用画像情報学会平成19年度秋季大会(第149回大会)
    • Place of Presentation
      福岡
    • Year and Date
      2007-10-06
    • Related Report
      2009 Final Research Report
  • [Presentation] Can a CAD Scheme be Useful for Hyperacute Stroke in Unenhanced CT?2007

    • Author(s)
      Noriyuki Takahashi, Yongbum Lee, Du-Yih Tsai, Kiyoshi Ishi
    • Organizer
      92nd Scientific Assembly and Annual Meeting of Radiological Society of North America (RSNA2007)
    • Place of Presentation
      Chicago, America
    • Related Report
      2009 Final Research Report
  • [Presentation] 画像統計解析を用いたCT画像における急性期脳梗塞検出法の検討2007

    • Author(s)
      高橋規之, 李鎔範, 蔡(佐井)篤儀, 石井清, 岩城賢郎
    • Organizer
      日本放射線技術学会第35回秋季学術大会
    • Place of Presentation
      名古屋
    • Related Report
      2009 Final Research Report
  • [Presentation] Computer-aided Detection Scheme for Detection of Hyperacute Stroke in Unenhanced CT2007

    • Author(s)
      Noriyuki Takahashi
    • Organizer
      92nd Scientific Assembly and Annual Meeting of Radiological Society of North America (RSNA2007)
    • Place of Presentation
      Chicago, America
    • Related Report
      2007 Annual Research Report
  • [Remarks] 本科学研究の成果の詳細を主な論文内容と共に公開している

    • URL

      http://www.clg.niigata-u.ac.jp/~tsai/

    • Related Report
      2009 Final Research Report
  • [Remarks]

    • URL

      http://www.clg.niigata-u.ac.jp/~tsai/

    • Related Report
      2009 Annual Research Report
  • [Remarks]

    • URL

      http://www.clg.niigata-u.ac.jp/-tsai/

    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://www.clg.niigata-u.ac.jp/~tsai/

    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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