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Develop a MR imaging method and equipment maintenance management system for early detection of dementia

Research Project

Project/Area Number 15K01732
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Applied health science
Research InstitutionFujita Health University

Principal Investigator

Yamaguchi Kojiro  藤田保健衛生大学, 保健学研究科, 准教授 (40267927)

Co-Investigator(Kenkyū-buntansha) 梅沢 栄三  藤田保健衛生大学, 保健学研究科, 准教授 (50318359)
児玉 直樹  新潟医療福祉大学, 医療技術学部, 教授 (50383146)
山田 雅之  藤田保健衛生大学, 保健学研究科, 教授 (40383773)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords認知症 / アルツハイマー型認知症 / 軽度認知症 / 進行予測 / MRI / 数値シミュレーション / RFパルス角度 / 健忘型軽度認知症障害 / MRIパルスシーケンス / MRIファントム / MRI保守管理システム / MRI保守管理 / Bloch方程式 / パルスシーケンス
Outline of Final Research Achievements

The purpose of our study is to develop a performance evaluation system in MRI(magnetic resonace imaging) that can predict the progress from amnesia, which is one of mild cognitive impairment, to Alzheimer disease. It is possible to set parameters that tissue contrast can be higher and evaluate temporal change of images. And it is mathematically possible to analyze MR phenomena by numerical simulation using Bloch equation, and α degrees and β degrees, which are regarded as RF angles of MRI pulse sequence, were calculated.As a result of the simulation, by changing the RF angle from 90 ° -180 ° to α ° - β °, the CNR(contrast noise ratio) of white matter and gray matter was improved by 26%, and the SAR(specific absorption rate) was also reduced by 33.6%.
We have established an evaluation method of edge response and SNR(signal-to-noise ratio) from diffusion images, which makes it possible to evaluate benchmarks that do not depend on the model dependence of MRI units.

Report

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

    (25 results)

All 2017 2016 2015

All Journal Article (9 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 9 results,  Acknowledgement Compliant: 3 results) Presentation (14 results) (of which Int'l Joint Research: 14 results) Funded Workshop (2 results)

  • [Journal Article] Study of Optimum Flip - Flop Angle of Fast SE Sequence for Dementia Diagnosis Image.2017

    • Author(s)
      Kojiro Yamaguchi, Maricris SD. Sakaguchi, Yusuke Oribe.
    • Journal Title

      Proceeding of The 25th Annual Thai Society of Radiological Technologists Conference.

      Volume: 2017

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Development of an MRI performance evaluation system using DWI2016

    • Author(s)
      kojiro yamaguchi
    • Journal Title

      Proceeding of The 24th Thai Society of Radiological Technologist Annual Conference.

      Volume: 2016 Pages: 26-26

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] A study of the Development of Laguerr's Equation Type Fat Saturation RF pulse.2016

    • Author(s)
      kojiro yamaguchi
    • Journal Title

      Proceeding of 19th ISSRRT ( International Society of Radiographers and Radiological Technologists ) World Congress.

      Volume: 2016 Pages: 173-173

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] 2016 TAMRT ( Taiwan Association of Medical Radiation Technologists ) International Forum and 4th Asia Radiation Therapy Symposium.2016

    • Author(s)
      kojiro yamaguchi
    • Journal Title

      Proceeding of 2016 TAMRT International Forum and 4th Asia Radiation Therapy Symposium.

      Volume: 2016 Pages: 57-57

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] A study of the Proactive Strategy for Detection Early Stage of Dementia.2016

    • Author(s)
      Fumio Nishida, kojiro yamaguchi, Tomoya Toyama, Kenta Hirayama, Kiyomitsu Mori.
    • Journal Title

      Proceeding of 19th ISSRRT ( International Society of Radiographers and Radiological Technologists ) World Congress.

      Volume: 2016 Pages: 253-253

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A study on Optimal Angle for α Degree - echo - β degree - echo type RARE Sequence.2016

    • Author(s)
      Yuna Kato, Kojiro Yamaguchi
    • Journal Title

      Proceeding of The Japan Association of Radiological Technologists,

      Volume: 63(9) Pages: 224-224

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A study on Optimal Angle for α Degree - echo - β degree - echo type RARE Sequence.2016

    • Author(s)
      Masumi Asakawa, Kojiro Yamaguchi.
    • Journal Title

      Proceeding of The Japan Association of Radiological Technologists

      Volume: 63(9) Pages: 224-224

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A study on Optimal Angle for α Degree - echo - β degree - echo type RARE Sequence.2016

    • Author(s)
      Hitomi Ishida, Kojiro Yamaguchi.
    • Journal Title

      Proceeding of The Japan Association of Radiological Technologists

      Volume: 63(9) Pages: 225-225

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A study on Optimal Angle for α Degree - echo - β degree - echo type RARE Sequence.2016

    • Author(s)
      Kurumi Takagi, Kojiro Yamaguchi.
    • Journal Title

      Proceeding of The Japan Association of Radiological Technologists

      Volume: 63(9) Pages: 225-225

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Study of Optimum Flip - Flop Angle of Fast SE Sequence for Dementia Diagnosis Image.2017

    • Author(s)
      Kojiro Yamaguchi, Maricris SD. Sakaguchi, Yusuke Oribe.
    • Organizer
      The 25th Annual Thai Society of Radiological Technologists Conference
    • Place of Presentation
      Lotus Pang Suan Keaw Hotel, Chiang Mai, Thailand.
    • Year and Date
      2017-02-09
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] The influence of the image quality for variable 180° RF pulse of FSE.2017

    • Author(s)
      Kojiro Yamaguchi, Maricris SD. Sakaguchi, Yusuke Oribe.
    • Organizer
      21st Asia-Australasia Conference of Radiological Technologists
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Trends analysis of QA/QC research for medical equipment in ASEAN2017

    • Author(s)
      Fumio Nishida, Kojiro Yamaguchi, Maricris SD. Sakaguchi, Yusuke Oribe,Masahiro Watanabe, Kiyomitsu Mori.
    • Organizer
      21st Asia-Australasia Conference of Radiological Technologists
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of the character of the slice profiling on α degree - β degree - γ degree typed FSE sequences2017

    • Author(s)
      Kojiro Yamaguchi, Maricris SD. Sakaguchi, Yusuke Oribe.
    • Organizer
      The 17th Annual Scientific Meeting of Macao Radiological Technologists Association
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A study of the Development of Laguerr's Equation Type Fat Saturation RF pulse.2016

    • Author(s)
      kojiro yamaguchi
    • Organizer
      19th ISSRRT ( International Society of Radiographers and Radiological Technologists ) World Congress.
    • Place of Presentation
      Intercontinental Seoul COEX, Seoul, Korea.
    • Year and Date
      2016-10-20
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] A study of the Proactive Strategy for Detection Early Stage of Dementia.2016

    • Author(s)
      Fumio Nishida, kojiro yamaguchi, Tomoya Toyama, Kenta Hirayama, Kiyomitsu Mori.
    • Organizer
      19th ISSRRT ( International Society of Radiographers and Radiological Technologists ) World Congress.
    • Place of Presentation
      Intercontinental Seoul COEX, Seoul, Korea.
    • Year and Date
      2016-10-20
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] A study on Optimal Angle for α Degree - echo - β degree - echo type RARE Sequence.2016

    • Author(s)
      Masumi Asakawa, Kojiro Yamaguchi.
    • Organizer
      The 33rd Japan Conference of Radiological Technologists (JCRT)
    • Place of Presentation
      Nagaragawa Convention Center, Gifu, Japan
    • Year and Date
      2016-09-16
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] The development of the Quality Control method of Diffusion Weighted Image.2016

    • Author(s)
      kojiro yamaguchi
    • Organizer
      The 18th National Congress of Vietnamese Society of Radiology and Nucear Medicine.
    • Place of Presentation
      Furama Resort, Da Nang City, Vietnam
    • Year and Date
      2016-08-19
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] The Development of an MRI performance evaluation system using DWI2016

    • Author(s)
      kojiro yamaguchi
    • Organizer
      The 24th Thai Society of Radiological Technologist Annual Conference
    • Place of Presentation
      A-One The Royal Cruise Hotel, Pattaya, Chonburi, Thailand.
    • Year and Date
      2016-04-27
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Basic Study of Flip-Flop variable - type imaging2016

    • Author(s)
      Kojiro Yamaguchi
    • Organizer
      The 5th Annual Scientific Meeting of Macao Radiological Techologists’ Association” and “The 16th Annual Scientific Meeting of Macao Radiology Association”
    • Place of Presentation
      Hotel Royal Macao, Macao
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Is your MRI scanner suitable for the diabnosis of dementia?2016

    • Author(s)
      kojiro yamaguchi
    • Organizer
      2016 TAMRT ( Taiwan Association of Medical Radiation Technologists ) International Forum and 4th Asia Radiation Therapy Symposium.
    • Place of Presentation
      Chih-Teh Building, Taipei Veterans General Hospital,Taipei, Taiwan.
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Influence of varying the refocusing angles to Slice Profile on a Carr-Purcell-Meiboom-Gill (CPMG) type Fast SE sequence2015

    • Author(s)
      kojiro yamaguchi
    • Organizer
      Korean Radiological Technologists Association 50th Annual Meeting & International Joint Conference
    • Place of Presentation
      The-K Hotel Seoul, Korea
    • Year and Date
      2015-10-30
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development of brain images using dual Flip - Flop angle type T2W-FSE2015

    • Author(s)
      kojiro yamaguchi
    • Organizer
      The 2nd Hong Kong Radiographers & Radiation Therapists Conference
    • Place of Presentation
      Postgraduate Education Center, Prince of Wales Hospital, Hong Kong
    • Year and Date
      2015-06-27
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] An approach to the international standardization of MRI performance evaluation2015

    • Author(s)
      kojiro yamaguchi
    • Organizer
      The 23th Thai Society of Radiological Technologist Annual Conference
    • Place of Presentation
      Eastern Grand Palace Hotel, Pattaya, Thailand
    • Year and Date
      2015-04-29
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Funded Workshop] 21st Asia-Australasia Conference of Radiological Technologists2017

    • Related Report
      2017 Annual Research Report
  • [Funded Workshop] The 17th Annual Scientific Meeting of Macao Radiological Technologists Association2017

    • Related Report
      2017 Annual Research Report

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Published: 2015-04-16   Modified: 2019-03-29  

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