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Development of analysis system for Dopamin transporter imaging

Research Project

Project/Area Number 16K10336
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Radiation science
Research InstitutionAsahikawa Medical College

Principal Investigator

Okizaki Atsutaka  旭川医科大学, 医学部, 教授 (10322893)

Co-Investigator(Kenkyū-buntansha) 片山 隆行  旭川医科大学, 医学部, 講師 (70396365)
Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywordsドパミントランスポーター / ドパミントランスポータ
Outline of Final Research Achievements

We developed distance weighted histogram (DWH) algorithms, which for quantitative evaluation of I-123 FP-CIT uptake in striatum, and the algorithms were implemented as a software to analyze. We assessed the reproducibility of the quantitative index in patients with diffuse levy body disease with dementia. The reproducibility of the index by using DWH was good. DWH may be useful to improve inter- and intra-observer reproducibility of the quantitative index. We applied patens about DWH.
The DWH method might also minimize the disagreement of laterality between the index and visual evaluation, and be useful for making a confident diagnosis in patients with Parkinson's disease.

Academic Significance and Societal Importance of the Research Achievements

パーキンソン病やびまん性レビー小体型認知症では脳の線条体のドパミントランスポータが減少することが知られています。従ってこれらの病気の診断に、線条体のドパミントランスポータに集積する薬剤量を測定することが有用と考えられます。私たちはヒストグラムを利用し、数学的に脳の輪郭を正確に抽出する手法を開発しました。実際にこの方法は安定してドパミントランスポータを評価できること、また専門医の診断と左右差が良く一致することを報告しています。この手法が多くの病院で利用できるようになれば、より正確に病気の評価が可能となり、患者さんにとっては最適な治療を受けることがより容易となり、メリットがあるものと考えられます。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (10 results)

All 2019 2018 2017 2016

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] An investigation of asymmetric reduction in dopamine transporter density in patients with Parkinson’s disease2019

    • Author(s)
      Okizaki Atsutaka、Yamamoto Wakako、Saito Wakako、Miyano Takashi、Kimura Takashi、Suzuki Yasuhiro、Nakayama Michihiro
    • Journal Title

      Nuclear Medicine Communications

      Volume: 40 Issue: 11 Pages: 1187-1192

    • DOI

      10.1097/mnm.0000000000001087

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inter- and intra-observer reproducibility of quantitative analysis for FP-CIT SPECT in patients with DLB2017

    • Author(s)
      Okizaki Atsutaka、Nakayama Michihiro、Nakajima Kaori、Katayama Takayuki、Uno Takahiro、Morikawa Fumiyoshi、Naoe Juichiro、Takahashi Koji
    • Journal Title

      Annals of Nuclear Medicine

      Volume: 31 Issue: 10 Pages: 758-763

    • DOI

      10.1007/s12149-017-1209-9

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] パーキンソン病患者のDAT scanにおけるSBRとHY scaleの重症度の関連に関する研究2019

    • Author(s)
      沖崎貴琢、中山理寛
    • Organizer
      日本医学放射線学会総会
    • Related Report
      2018 Research-status Report
  • [Presentation] Test-retest Reproduciblity of Specific Binding Ratio for DAT scan by using Bland-Altman analysis.2018

    • Author(s)
      Atsutaka Okizaki, Michihiro Nakayama, Koji Takahashi
    • Organizer
      日本医学放射線学会総会
    • Related Report
      2018 Research-status Report
  • [Presentation] DAT scanの定量評価2018

    • Author(s)
      沖崎貴琢
    • Organizer
      断層映像研究会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] DATスキャンにおける脳表輪郭抽出法の検討2017

    • Author(s)
      沖崎貴琢、中山理寛、宇野貴寛、鈴木達也、三上友希、佐藤順一、高橋康二
    • Organizer
      北海道地方会
    • Related Report
      2017 Research-status Report
  • [Presentation] An investigation for reproducibility of FP-CIT SPECT in patients with DLB.2017

    • Author(s)
      A. Okizaki , M. Nakayama , K. Takahashi
    • Organizer
      SNMMI 2017 Annual Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] DATスキャン定量評価における再現性の検討2017

    • Author(s)
      沖崎貴琢、中山理寛、高橋康
    • Organizer
      秋季北日本地方会
    • Related Report
      2017 Research-status Report
  • [Presentation] An investigation for intra-observer reproducibility of FP-CIT SPECT in patients with DLB.2017

    • Author(s)
      A. Okizaki , M. Nakayama , K. Takahashi
    • Organizer
      European Association of Nuclear Medicine 2017 congress
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] 輪郭抽出装置、輪郭抽出方法およびプログラム2016

    • Inventor(s)
      沖崎貴琢、西川和宏
    • Industrial Property Rights Holder
      沖崎貴琢、西川和宏
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2016-234071
    • Filing Date
      2016-12-01
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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