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2016 Fiscal Year Annual Research Report

Development of three-dimensional optical biopsy using Doppler and polarization sensitive optical coherence tomography

Research Project

Project/Area Number 25293353
Research InstitutionUniversity of Tsukuba

Principal Investigator

大鹿 哲郎  筑波大学, 医学医療系, 教授 (90194133)

Co-Investigator(Kenkyū-buntansha) 平岡 孝浩  筑波大学, 医学医療系, 講師 (30359575)
加治 優一  筑波大学, 医学医療系, 准教授 (50361332)
Project Period (FY) 2013-04-01 – 2017-03-31
Keywords光干渉断層計 / OCT / 偏光 / birefringence / 複屈折
Outline of Annual Research Achievements

偏光感受型光干渉断層計(Optical Coherence Tomography, OCT)で翼状片の局所複屈折を可視化・評価した.初発翼状片患者を対象に,ジョーンズマトリックスを用いて局所位相遅延量から局所複屈折を抽出した.切除術を行った症例でヘマトキシリン・エオジン(HE)染色を用いて翼状片組織の病理学的検討を行い,偏光OCT画像と比較した.全症例で翼状片内部の局所複屈折が上昇していた.en face画像では翼状片増殖組織が角膜中央へ向かうベクトルに一致して,強い局所複屈折を示す帯状の領域を認めた.翼状片組織のHE染色では,偏光OCTで強い局所複屈折を示す領域に一致して,変性した弾性線維を認めた.偏光OCTを用いて翼状片の局所複屈折を評価することで,非侵襲的に,翼状片内部の線維化の程度や増殖組織の範囲を可視化できる可能性が示された.
緑内障手術後の濾過胞における線維化を偏光OCTで定量化し,経時変化および眼圧コントロールとの関連を調べた.緑内障濾過手術後眼を対象とした.術後1週,1,3,6ヶ月で,眼圧の測定および偏光OCTの撮影を行った.偏光OCTで得られた濾過胞の複屈折断層像から高複屈折領域の割合を算出し,線維化スコア(%)とした.術後1ヶ月以降,眼圧15 mmHg以内を維持できたか否かで経過良好群と不良群に分類し,眼圧および線維化スコアの経時変化を評価した.線維化スコアは術後1週,1,3,6ヶ月において良好群で17.2,18.1,18.1,19.7%,不良群で15.8,21.7,34.9,36.0%であった.良好群では線維化スコアの上昇は見られず,不良群では1ヶ月以降で線維化スコアが有意に上昇した(P<0.05).線維化スコアは眼圧コントロールに関連しており,組織の線維化を他覚的・定量的に表していると考えられた.

Research Progress Status

28年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

28年度が最終年度であるため、記入しない。

Causes of Carryover

28年度が最終年度であるため、記入しない。

Expenditure Plan for Carryover Budget

28年度が最終年度であるため、記入しない。

  • Research Products

    (17 results)

All 2017 2016

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (11 results) (of which Int'l Joint Research: 8 results)

  • [Journal Article] Objective evaluation of functionality of filtering bleb based on polarization-sensitive optical coherence tomography2016

    • Author(s)
      Kasaragod D, Fukuda S, Ueno Y, Hoshi S, Oshika T, Yasuno Y
    • Journal Title

      Invest Ophthalmol Vis Sci

      Volume: 57 Pages: 2305-2310

    • DOI

      10.1167/iovs.15-18178

    • Peer Reviewed
  • [Journal Article] Apparent accommodation in pseudophakic eyes with refractive against-the-rule, with-the-rule and minimum astigmatism2016

    • Author(s)
      Yamamoto T, Hiraoka T, Oshika T
    • Journal Title

      Br J Ophthalmol

      Volume: 100 Pages: 565-571

    • DOI

      10.1136/bjophthalmol-2015-307032

    • Peer Reviewed
  • [Journal Article] Polyethylene glycol-based synthetic hydrogel sealant for closing vitrectomy wounds: An in vivo and histological study2016

    • Author(s)
      Hoshi S, Okamoto F, Arai M, Hirose T, Fukuda S, Sugiura Y, Oshika T
    • Journal Title

      Transl Vis Sci Technol

      Volume: 5 Pages: 7 eCollectoin

    • DOI

      10.1167/tvst.5.3.7

    • Peer Reviewed / Open Access
  • [Journal Article] Differences of longitudinal chromatic aberration (LCA) between eyes with intraocular lenses from different manufacturers2016

    • Author(s)
      Nakajima M, Hiraoka T, Yamamoto T, Takagi S, Hirohara Y, Oshika T, Mihashi T
    • Journal Title

      PLoS One

      Volume: 11 Pages: e0156227

    • DOI

      10.1371/journal.pone.0156227

    • Peer Reviewed
  • [Journal Article] Quantitative evaluation of phase retardation in filtering blebs using polarization-sensitive optical coherence tomography2016

    • Author(s)
      Fukuda S, Fujita A, Kasaragod D, Ueno Y, Hoshi S, Kishino G, Beheregaray S, Yasuno Y, Oshika T
    • Journal Title

      Invest Ophthalmol Vis Sci

      Volume: 57 Pages: 5919-5925

    • DOI

      10.1167/iovs.16-19548

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] In vivo retinal and choroidal hypoxia imaging using a novel activatable hypoxia-selective near-infrared fluorescent probe2016

    • Author(s)
      Fukuda S, Okuda K, Kishino G, Hoshi S, Kawano I, Fukuda M, Yamashita T, Beheregaray S, Nagano M, Ohneda O, Nagasawa H, Oshika T
    • Journal Title

      Graefes Arch Clin Exp Ophthalmol

      Volume: 254 Pages: 2373-2385

    • DOI

      10.1007/s00417-016-3476-x

    • Peer Reviewed
  • [Presentation] Evaluation of filtration surgery outcome using multi contrast anterior eye segment Jones matrix optical coherence tomography2017

    • Author(s)
      Kasaragod D, Makita S, Ueno Y, Hoshi S, Fukuda S, Oshika T, Yasuno Y
    • Organizer
      BIOS 2017 - Ophthalmic Technologies XXVII
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2017-01-28 – 2017-01-29
    • Int'l Joint Research
  • [Presentation] Comparison of corneal astigmatism axis measurement using anterior segment optical coherent tomography, IOLMaster500, and auto refractokearatometer2016

    • Author(s)
      Nakano S, Hiraoka T, Oshika T
    • Organizer
      he 5th Biennial Scientific Meeting Asia Cornea Society 2016, the 5th Asia Orthokeratology and Specialty Lens Conference
    • Place of Presentation
      Seoul, South Korea
    • Year and Date
      2016-12-09 – 2016-12-11
    • Int'l Joint Research
  • [Presentation] 偏光OCTによる翼状片の局所複屈折の可視化2016

    • Author(s)
      星 崇仁,Kasaragod D,上野勇太,藤田亜佳里,福田慎一,安野嘉晃,大鹿哲郎
    • Organizer
      第70回日本臨床眼科学会
    • Place of Presentation
      国立京都国際会館,京都府,京都市
    • Year and Date
      2016-11-03 – 2016-11-06
  • [Presentation] 高深達・前眼部OCTによる水晶体核混濁の定量評価2016

    • Author(s)
      森 悠大,上野勇太,平岡孝浩,長谷川優実,萩原希望,藤田亜佳里,大鹿哲郎
    • Organizer
      第70回日本臨床眼科学会
    • Place of Presentation
      国立京都国際会館,京都府,京都市
    • Year and Date
      2016-11-03 – 2016-11-06
  • [Presentation] 偏光感受型前眼部OCTによる濾過胞線維化スコアの経時的評価2016

    • Author(s)
      大久保智貴,上野勇太,Kasaragod D,星 崇仁,福田慎一,藤田亜佳里,安野嘉晃,大鹿哲郎
    • Organizer
      第70回日本臨床眼科学会
    • Place of Presentation
      国立京都国際会館,京都府,京都市
    • Year and Date
      2016-11-03 – 2016-11-06
  • [Presentation] Results of toric intraocular lens implantation using surgical guidance and AS-OCT orientation2016

    • Author(s)
      Nakano S, Hiraoka T, Oshika T
    • Organizer
      The XXXIV Congress of the European Society of Cataract and Refractive Surgeons (ESCRS)
    • Place of Presentation
      Copenhagen, Denmark
    • Year and Date
      2016-09-10 – 2016-09-14
    • Int'l Joint Research
  • [Presentation] A compact Shack-Hartmann wavefront aberrometer: useful tool for clinical and basic research purposes2016

    • Author(s)
      Mihashi T, Hirohara Y, Oshika T, Shah S, Wolffsohn J
    • Organizer
      8th European Meeting on Visual and Physiological Optics
    • Place of Presentation
      Antwerp Belgium
    • Year and Date
      2016-08-22 – 2016-08-24
    • Int'l Joint Research
  • [Presentation] Evaluation of filtration bleb by multi-contrast anterior-segment optical coherence tomography2016

    • Author(s)
      Kasaragod D, Makita S, Ueno Y, Hoshi S, Oshika T, Yasuno Y
    • Organizer
      Association for Research in Vision and Ophthalmology 2016
    • Place of Presentation
      Seattle, USA
    • Year and Date
      2016-05-01 – 2016-05-05
    • Int'l Joint Research
  • [Presentation] Evaluation of longitudinal chromatic aberration of pseudophakic eyes with a multiwavelength wavefront sensor in pseudophakic eyes2016

    • Author(s)
      Takagi S, Nakajima M, Yamamoto T, Hirohara Y, Mihashi T, Hiraoka T, Oshika T
    • Organizer
      Association for Research in Vision and Ophthalmology 2016
    • Place of Presentation
      Seattle, USA
    • Year and Date
      2016-05-01 – 2016-05-05
    • Int'l Joint Research
  • [Presentation] Imaging of crystalline lens using a new anterior segment optical coherence tomography2016

    • Author(s)
      Mori H, Ueno Y, Hiraoka T, Fujita A, Oshika T
    • Organizer
      Association for Research in Vision and Ophthalmology 2016
    • Place of Presentation
      Seattle, USA
    • Year and Date
      2016-05-01 – 2016-05-05
    • Int'l Joint Research
  • [Presentation] Measurements of corneal astigmatism axis with anterior segment swept source optical coherent tomography versus auto refractokearatometer2016

    • Author(s)
      Nakano S, Iida M, Hiraoka T, Oshika T
    • Organizer
      Association for Research in Vision and Ophthalmology 2016
    • Place of Presentation
      Seattle, USA
    • Year and Date
      2016-05-01 – 2016-05-05
    • Int'l Joint Research

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Published: 2018-01-16  

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