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Hemodynamic analysis of erythrocyte aggregates in diabetic retinopathy using adaptive optics scanning laser ophthalmoscopy

Research Project

Project/Area Number 25861628
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Ophthalmology
Research InstitutionKyoto University

Principal Investigator

UJI Akihito  京都大学, 医学(系)研究科(研究院), 助教 (60534302)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords補償光学 / 糖尿病網膜症 / 網膜循環 / 眼光学 / 糖尿病
Outline of Final Research Achievements

Diabetic retinopathy is one of the leading causes of visual impairment in japan. Adaptive Optics Scanning Laser Ophthalmoscopy (AO-SLO) has enabled noninvasive and direct monitoring of blood flow. We analyzed the retinal hemorheologic characteristics using AO-SLO in normal subjects, diabetic patients without diabetic retinopathy (NDR), and diabetic patients with nonproliferative diabetic retinopathy (NPDR). Although differences in erythrocyte aggregate velocity in the parafoveal network were found between normal subjects and NPDR patients, but not between normal subjects and NDR patients, erythrocyte aggregates in NDR patients and NPDR patients showed lower elongation rates than those observed in normal subjects. Differences in the proportion of each type of ST image were found between normal subjects and diabetic patients, suggesting that ST images can be used to visualize subclinical rheologic changes related to retinopathy in diabetic patients.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (15 results)

All 2014 2013

All Journal Article (5 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (9 results) (of which Invited: 3 results) Book (1 results)

  • [Journal Article] Adaptive optics-assisted identification of preferential erythrocyte aggregate pathways in the human retinal microvasculature.2014

    • Author(s)
      Arichika S, Uji A, Ooto S, Miyamoto K, Yoshimura N.
    • Journal Title

      PLoS One.

      Volume: 9 Issue: 2 Pages: e89679-e89679

    • DOI

      10.1371/journal.pone.0089679

    • Related Report
      2014 Annual Research Report 2013 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Retinal hemorheologic characterization of early-stage diabetic retinopathy using adaptive optics scanning laser ophthalmoscopy.2014

    • Author(s)
      Arichika S, Uji A, Murakami T, Unoki N, Yoshitake S, Dodo Y, Ooto S, Miyamoto K, Yoshimura N.
    • Journal Title

      Invest Ophthalmol Vis Sci.

      Volume: 55 Issue: 12 Pages: 8513-5122

    • DOI

      10.1167/iovs.14-15121

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Parallelism for quantitative image analysis of photoreceptor-retinal pigment epithelium complex alterations in diabetic macular edema.2014

    • Author(s)
      Uji A, Murakami T, Unoki N, Ogino K, Horii T, Yoshitake S, Dodo Y, Yoshimura N
    • Journal Title

      Invest Ophthalmol Vis Sci.

      Volume: 55 Issue: 5 Pages: 3361-3367

    • DOI

      10.1167/iovs.14-13948

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Image quality improvement in adaptive optics scanning laser ophthalmoscopy assisted capillary visualization using b-spline-based elastic image registration.2013

    • Author(s)
      Uji A, Ooto S, Hangai M, Arichika S, Yoshimura N.
    • Journal Title

      PLoS One.

      Volume: 8 Issue: 11 Pages: e80106-e80106

    • DOI

      10.1371/journal.pone.0080106

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Noninvasive and direct monitoring of erythrocyte aggregates in human retinal microvasculature using adaptive optics scanning laser ophthalmoscopy2013

    • Author(s)
      Arichika S, Uji A, Hangai M, Ooto S, Yoshimura N
    • Journal Title

      Invest Ophthalmol Vis Sci

      Volume: 54(6) Issue: 6 Pages: 4394-4402

    • DOI

      10.1167/iovs.12-11138

    • Related Report
      2013 Research-status Report
  • [Presentation] Parallelism for Quantitative Image Analysis of Photoreceptor–Retinal Pigment Epithelium Complex Alteration in Diabetic Macular Edema2014

    • Author(s)
      Uji A, Murakami T, Unoki N, Ogino K, Horii T, Yoshimura N
    • Organizer
      The Association for Research in Vision and Ophthalmology (ARVO) Annual Meeting
    • Place of Presentation
      Orlando, Florida
    • Year and Date
      2014-05-04 – 2014-05-08
    • Related Report
      2014 Annual Research Report
  • [Presentation] 光干渉断層計の網膜像における超解像技術の効果2014

    • Author(s)
      宇治彰人、村上智昭、鵜木則之、吉武信、百々蓉子、吉村長久
    • Organizer
      第118回日本眼科学会総会
    • Place of Presentation
      東京
    • Year and Date
      2014-04-02 – 2014-04-06
    • Related Report
      2014 Annual Research Report
  • [Presentation] Detection of flow velocity fluctuations associated with erythrocyte aggregation in diabetic retinopathy by using adaptive optics scanning laser ophthalmoscopy2013

    • Author(s)
      Akihito Uji, Masanori Hangai, Sotaro Ooto, Shigeta Arichika, Tomoaki Murakami, Nagahisa Yoshimura
    • Organizer
      The Association for Research in Vision and Ophthalmology (ARVO) Annual Meeting
    • Place of Presentation
      Seattle, USA
    • Related Report
      2013 Research-status Report
  • [Presentation] Distribution of vessels with dark tails in the parafoveal capillary network monitored by adaptive optics scanning laser ophthalmoscopy2013

    • Author(s)
      Shigeta Arichika, Akihito Uji, Masanori Hangai, Sotaro Ooto, Nagahisa Yoshimura
    • Organizer
      The Association for Research in Vision and Ophthalmology (ARVO) Annual Meeting
    • Place of Presentation
      Seattle, USA
    • Related Report
      2013 Research-status Report
  • [Presentation] 補償光学適応走査レーザー検眼鏡を用いた傍中心窩毛細血管網におけるdark tailの分布2013

    • Author(s)
      有近重太、宇治彰人、大音壮太郎、板谷正紀、吉村長久
    • Organizer
      第117回日本眼科学会
    • Place of Presentation
      東京
    • Related Report
      2013 Research-status Report
  • [Presentation] シンポジウム、「眼循環評価のCutting Edge」 Adaptive Optics を応用した網膜微小循環評価2013

    • Author(s)
      宇治彰人
    • Organizer
      第30回日本眼循環学会
    • Place of Presentation
      東京
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] 糖尿病黄斑浮腫における網膜外層の新しい定量的画像解析方法2013

    • Author(s)
      宇治彰人、村上智昭、荻野顕、鵜木則之、吉武信、百々蓉子、西嶋一晃、吉村長久
    • Organizer
      19回の日本糖尿病眼学会総会
    • Place of Presentation
      神戸
    • Related Report
      2013 Research-status Report
  • [Presentation] 「進化する網膜イメージング」 補償光学走査型レーザー検眼鏡(AO-SLO)を用いた細胞レベルの眼底観察.2013

    • Author(s)
      宇治彰人
    • Organizer
      第49回眼光学学会
    • Place of Presentation
      京都
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] High-resolution retinal imaging using Adaptive Optics Scanning Laser Ophthalmoscopy2013

    • Author(s)
      Akihito Uji
    • Organizer
      Optics & Photonics Japan 2013
    • Place of Presentation
      奈良
    • Related Report
      2013 Research-status Report
    • Invited
  • [Book] 糖尿病網膜症診療のすべて2013

    • Author(s)
      宇治彰人(分担執筆)
    • Total Pages
      374
    • Publisher
      医学書院
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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