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Development of Image Processing System for Fundus Video-Angiography with Non-Stroboscopic Illumination

Research Project

Project/Area Number 63870070
Research Category

Grant-in-Aid for Developmental Scientific Research (B).

Allocation TypeSingle-year Grants
Research Field Ophthalmology
Research InstitutionTohoku University

Principal Investigator

TAMAI Makoto  Tohoku Univ. Sch. of Med. Dept. of Ophthalmol. prof., 医学部, 教授 (90004720)

Co-Investigator(Kenkyū-buntansha) MUTOH Tsutomu  Tohoku Univ. Sch. of Med. Dept. of Ophthalmol. Assistant, 医学部, 助手
ITABASHI Ryuzo  Tohoku Univ. Sch. of Med. Dept. of Ophthalmol. Assistant, 医学部, 助手 (20193419)
SUZUKI Hitoshi  Ishinomaki Sensyu Univ. Prof., 教授 (60004727)
TASAKI Kyoji  Tohoku Univ. Sch. of Med. Emeritus Prof., 名誉教授 (10004532)
KASAI Makoto  Tohoku Univ. Sch. of Med. Dept. of Ophthalmol. Assistant (70183259)
Project Period (FY) 1988 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥18,100,000 (Direct Cost: ¥18,100,000)
Fiscal Year 1990: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1989: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1988: ¥14,300,000 (Direct Cost: ¥14,300,000)
KeywordsFluorescein video-angiography, / Image processing, / Video tape recording / Digital subtraction / ビデオ蛍光眼底撮影
Research Abstract

Now a days in clinical ophthalmology. Fluorescein ocular fundus angiography (FAG) is one of the most important examinations for evaluating chorioretinal circulation. But the FAG has many problems of pharmacological and psychological stress on patients, that means the fluorescent dye is sometimes toxic and about half of examines are suffered from side-effects and also the strong exciting light illumination is very much troublesome for them.
So we developed a new system for recording an ocular fundus photography and video-angiographic FAG by incorporating a high-sensitive color charge coupled device (CCD) camera into a fundus camera. The signal from the camera could be personal computer either directly or from the data stored in a video tape recorder. Using our new system we made it possible to perform continuous and sequential recording of fundus photography without stroboscopic flashes. We could also reduce fluorescent dye to 1/2 of the usual dose.
In other words. We can put a stress on following features in our systems ;
1) Reducing the physical and psychological stress on the patients as well as recording continuously on real time 2) Extraction of clear image from less distinct record through off-line processing 3) Quantitated evaluation of minor differences in the color of the ocular fundus by enhancing either red-, greenー, blue-components of the signal and comparison of fundus images as seen in color to angiogram 4) Quantification of the blood flow in large vessels of ocular fundus by subtracting two successive images.
These features appeared to be of values in analyzing retinal circulation both in normal and pathological fundus in the future.

Report

(4 results)
  • 1990 Annual Research Report   Final Research Report Summary
  • 1989 Annual Research Report
  • 1988 Annual Research Report
  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] 武藤 勉、玉井 信、葛西 款、鈴木 均、田崎 京二: "微弱光励起によるビデオ蛍光眼底造影および画像処理システムの開発" 第93回日本眼科学会総会発表. (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 沓間 昌子、富田 英行、武藤 勉、鈴木 均: "微弱光励起による蛍光眼底ビデオ検査システムの開発おける画像処理の有用性" 医用電子と生体工学(大28回日本ME学会大会). 27. 219 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 葛西 款、鈴木 均、玉井 信、田崎 京二: "微弱励起光用眼底ビデオ録画装置" 日眼会誌. 94. 637-644 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 武藤 勉、葛西 款、板橋 隆三、玉井 信、鈴木 均、田崎 京二: "微弱光励起によるビデオ蛍光眼底造影および画像処理システムの開発" 日眼会誌投稿中.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Makoto Kasai: "Fundus Video Fluorescein Angiography with Low Steady light" Acta Soc Ophthalmol Jpn. 94. 637-644 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Tutomu Mutoh: "Development of Image Processing for Fluorescein Video-Angiography with Non-stroboscopic Illumination" Acta Soc ophthalmol Jpn.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 武藤 勉、玉井 信、葛西 款、鈴木 均、田崎 京二: "微弱光励起によるビデオ蛍光眼底造影および画像処理システムの開発" 第93回日本眼科学会総会発表. (1989)

    • Related Report
      1990 Annual Research Report
  • [Publications] 沓間 昌子、富田 英行、武藤 勉、鈴木 均: "微弱光励起による蛍光眼底ビデオ検査システムの開発における画像処理の有用性" 医用電子と生体工学(大28回日本ME学会大会). 27. 219 (1989)

    • Related Report
      1990 Annual Research Report
  • [Publications] 葛西 款、鈴木 均、玉井 信、田崎 京二: "微弱励起光用眼底ビデオ録画装置" 日眼会誌. 94. 637-644 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 武藤 勉、葛西 款、板橋 隆三、玉井 信、鈴木 均、田崎 京二: "微弱光励起によるビデオ蛍光眼底造影および画像処理システムの開発" 日眼会誌.

    • Related Report
      1990 Annual Research Report
  • [Publications] 葛西款,鈴木均,玉井信,田崎京二: "マイクロチャンネルプレ-ト内蔵型弱励起光用蛍光眼底ビデオ録画装置の開発" 第92回日本眼科学会総会発表(投稿中). 91. 204 (1987)

    • Related Report
      1989 Annual Research Report
  • [Publications] 杳間昌子,富田英行,大野浩平,保坂栄弘,武藤勉,鈴木均: "微弱励起による蛍光眼底ビデオ検査システムの開発における画像処理の有用性" 医用電子と生体工学(第28回日本ME学会大会発表). 27. 219 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 武藤勉,玉井信,葛西款,鈴木均,田崎京二,沓間昌子,大野浩平: "微弱励起による蛍光眼底ビデオ撮影及び画像処理システムの開発" 第93回日本眼科学会総会発表. 93. 146 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 武藤勉,葛西款,板橋隆三,玉井信,鈴木均,田崎京二: "微弱励起による蛍光眼底ビデオ撮影及び画像処理システムの開発" 日本眼科学会雑誌(投稿中). (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 葛西款,鈴木均,玉井信,田崎京二: 日本眼科学会雑誌.

    • Related Report
      1988 Annual Research Report
  • [Publications] 沓間昌子,富田英行,大野浩平,保坂栄弘,武藤勉,鈴木均: 医用電子と生体工学(第28回日本ME学会大会). 27. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] 武藤勉,玉井信,葛西款,鈴木均,田崎京二,沓間昌子,大野浩平: 第93回日本眼科学会.

    • Related Report
      1988 Annual Research Report

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Published: 1988-04-01   Modified: 2016-04-21  

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