• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

A new screening method for aortic stenosis by Doppler OCT

Research Project

Project/Area Number 19K18867
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56060:Ophthalmology-related
Research InstitutionAsahikawa Medical College

Principal Investigator

Song Youngseok  旭川医科大学, 医学部, 客員准教授 (00726341)

Project Period (FY) 2019-04-01 – 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 2021: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Keywords網膜循環 / 網膜血流 / ドップラ / 光干渉断層計 / OCT / Doppler / ドップラOCT / Doppler OCT / ドップラ光干渉断層計 / 網膜血流波形解析 / 緑内障 / 網膜動脈血流波形解析 / 動脈硬化 / 弁膜症 / 網膜血流計 / 大動脈弁狭窄症 / スクリーニング
Outline of Research at the Start

大動脈弁狭窄症(以下AS)は早期発見により生活の質のみならず、死をも回避しうるが、病気末期まで症状が出ないことから、早期受診は困難である。聴診法や心エコーなどのAS評価法は確立しているものの、前者は極めて主観的であり、後者は検査が煩雑でありスクリーニングには向かない。我々が開発したドップラ光干渉断層計(以下DOCT)は簡便かつ正確に網膜血流量を評価できることをこれまでに報告してきた。本研究では、DOCTを用いた網膜血流波形解析を心臓弁疾患、特にASに焦点を当てて解析を進めることで、ASにおける新たな、簡便かつ正確なスクリーニング法の創出を目指す。

Outline of Final Research Achievements

Doppler Optical coherence tomography flow meter (DOCT flowmeter) measures several retinal blood flow parameters including retinal blood velocity and the amount of retinal blood flow). The retinal blood flow parameters provide retinal blood flow waveform (RBF waveform). Our studies have revealed that the RBF waveform reflects the conditions of arteriosclerosis both in the healthy subjects and the patients with hypertension, suggesting that the retinal blood flow measured by DOCT flowmeter can be used for screenings of several systemic diseases related to arteriosclerosis.

Academic Significance and Societal Importance of the Research Achievements

DOCT flowmeterを用いた網膜血流測定が動脈硬化のスクリーニング検査として有用である可能性がある。本測定は簡便であり(測定時間3秒以内)、今後の更なる研究、臨床応用が期待される。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (12 results)

All 2022 2021 2020 2019

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 4 results) Presentation (5 results) (of which Invited: 1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Glaucoma Diagnostic Performance of Retinal Blood Flow Measurement With Doppler Optical Coherence Tomography2022

    • Author(s)
      Abe Tsubasa、Yoshioka Takafumi、Song Youngseok、Tani Tomofumi、Kawai Motofumi、Omae Tsuneaki、Takahashi Kengo、Takizawa Yoshitaka、Ro-Mase Tomoko、Ishiko Satoshi、Minamide Kana、Sakai Jun、Akiba Masahiro、Hashimoto Yohei、Yoshida Akitoshi
    • Journal Title

      Translational Vision Science & Technology

      Volume: 11 Issue: 10 Pages: 11-11

    • DOI

      10.1167/tvst.11.10.11

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Retinal Blood Velocity Waveform Characteristics With Aging and Arterial Stiffening in Hypertensive and Normotensive Subjects2021

    • Author(s)
      Yoshitaka Takizawa, Youngseok Song, Tomofumi Tani, Takafumi Yoshioka, Kengo Takahashi, Tsubasa Abe, Tomoko Ro-Mase, Satoshi Ishiko, Jun Sakai, Kana Minamide, Masahiro Akiba, Takamitsu Tatsukawa, Nobuyoshi Azuma, Akitoshi Yoshida
    • Journal Title

      Transl Vis Sci Technol .

      Volume: 25 Issue: 13 Pages: 25-25

    • DOI

      10.1167/tvst.10.13.25

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of insulin treatment on pulsatility ratio and resistance index of the retinal artery in patients with type 2 diabetes2021

    • Author(s)
      Tsuneaki Omae, Youngseok Song, Takafumi Yoshioka, Tomofumi Tani, Akitoshi Yoshida
    • Journal Title

      PLoS One

      Volume: 16 Issue: 7 Pages: 0254980-0254980

    • DOI

      10.1371/journal.pone.0254980

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Retinal blood flow reduction in normal-tension glaucoma with single-hemifield damage by Doppler optical coherence tomography2020

    • Author(s)
      Yoshioka Takafumi、Song Youngseok、Kawai Motofumi、Tani Tomofumi、Takahashi Kengo、Ishiko Satoshi、Lavinsky Fabio、Wollstein Gadi、Ishikawa Hiroshi、Schuman Joel S、Yoshida Akitoshi
    • Journal Title

      British Journal of Ophthalmology

      Volume: Epub ahead Issue: 1 Pages: 124-130

    • DOI

      10.1136/bjophthalmol-2019-315616

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Longitudinal Changes in Retinal Blood Flow in a Feline Retinal Vein Occlusion Model as Measured by Doppler Optical Coherence Tomography and Optical Coherence Tomography Angiography2020

    • Author(s)
      Wada Takanari、Song Youngseok、Oomae Tsuneaki、Sogawa Kenji、Yoshioka Takafumi、Nakabayashi Seigo、Takahashi Kengo、Tani Tomofumi、Ishibazawa Akihiro、Ishiko Satoshi、Yoshida Akitoshi
    • Journal Title

      Investigative Opthalmology & Visual Science

      Volume: 61 Issue: 2 Pages: 34-34

    • DOI

      10.1167/iovs.61.2.34

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Deterioration of Retinal Blood Flow Parameters in Branch Retinal Vein Occlusion Measured by Doppler Optical Coherence Tomography Flowmeter.2020

    • Author(s)
      Takahashi K, Song YS*, Sogawa K, Yoshioka T, Tani T, Ishiko S, Yoshida A
    • Journal Title

      J. Clin. Med

      Volume: 13;9(6) Issue: 6 Pages: 1847-1847

    • DOI

      10.3390/jcm9061847

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Resistance Index of Retinal Blood Flow from Doppler Optical Coherence Tomography Flowmeter is Associated with Cardio-Ankle Vascular Index2021

    • Author(s)
      瀧澤嘉孝、宋勇錫、善岡尊文、高橋賢伍、阿部翼、東信良、吉田晃敏
    • Organizer
      世界眼循環学会(IOCS)
    • Related Report
      2021 Research-status Report
  • [Presentation] Retinal Imaging in the Future -Doppler OCT-2019

    • Author(s)
      Youngseok Song
    • Organizer
      Asia Pacific Vitreo Retina Society
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Longitudinal Changes in Retinal Blood Flow in a Feline Retinal Vein Occlusion Model as Measured by Doppler Optical Coherence Tomography and Optical Coherence Tomography Angiography2019

    • Author(s)
      Takanari Wada,1 Youngseok Song,1,2,3 Tsuneaki Omae,1 Kenji Sogawa,1 Takafumi Yoshioka,1 Seigo Nakabayashi,1 Kengo Takahashi,1 Tomofumi Tani,1 Akihiro Ishibazawa,1 Satoshi Ishiko,1 Yasuo Yanagi1,2,3 and Akitoshi Yoshida1
    • Organizer
      The Association for Research in Vision and Ophthalmology
    • Related Report
      2019 Research-status Report
  • [Presentation] Retinal Blood Flow Measurements by Doppler Optical Coherence Tomography Flowmeter Can Reflect Condition of Aortic Stenosis2019

    • Author(s)
      Youngseok Song, MD, PhD; Takafumi Yoshioka, MD, PhD; Kengo Takahashi, MD, PhD; Tomofumi Tani, MD, PhD; Masahiro Akiba, PhD; Jun Sakai; Shunsuke Nakamura; Kana Minamide, DVM; Satoshi Ishiko, MD, PhD; Yasuo Yanagi, MD, PhD; Akitoshi Yoshida, MD, PhD
    • Organizer
      The Association for Research in Vision and Ophthalmology
    • Related Report
      2019 Research-status Report
  • [Presentation] Novel Screening Method for Arteriosclerosis by Measurement of Retinal Blood Flow: Automated-Doppler Optical Coherence Tomography Flowmeter2019

    • Author(s)
      Akitoshi Yoshida, MD, PhD, Youngseok Song, MD, PhD; Takafumi Yoshioka, MD, PhD; Kengo Takahashi, MD; Masataka Murono, MD; Tomofumi Tani, MD, PhD; Yasuo Yanagi, MD, PhD
    • Organizer
      The Retina Society
    • Related Report
      2019 Research-status Report
  • [Patent(Industrial Property Rights)] 血流解析装置、眼科装置、血流解析方法、及びプログラム2020

    • Inventor(s)
      2020
    • Industrial Property Rights Holder
      2020
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-025971
    • Filing Date
      2020
    • Related Report
      2020 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi