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Application of Subtraction Method to Fluorescence Fundus Photography:Report II Color Subtraction method Tsugihiko Horiuchi 1 , Masakazu Kohzaki 1 , Mitsuo Katoh 2 , Akira Ohtaki 2 1Departmet of Ophthalmology, Jikei University School of Medicine 2Tokyo Hypertension Center pp.85-90
Published Date 1973/1/15
DOI https://doi.org/10.11477/mf.1410204892
  • Abstract
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A substraction method was devised for fluo-rescein fundus angiograms using color photogr-aph. In order to compare the fluorescein angio-grams belonging to two different phases, usually arterial and venous ones, the negative film were printed on positive color film through orange (SO 56) and green (YG) filters respectively as superimposition.

The present color subtraction method has the same advantages as the ordinary B & W sub-traction method. The method facilitates a con-venient comparison of fluorescein angiorams belonging to two different phases of the same eye.


Copyright © 1973, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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