山口医学

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山口医学 Volume 37 Issue 5
published_at 1988-10

A comparison between retinal and choroidal circulation using a computeraized image analysis by video : fluorescence angiography

ビデオ蛍光眼底造影法による網膜動脈・静脈・脈絡膜の循環動態の時間変化について : 上方と下方領域での比較検討
Sugihara Itsuko
Kawata Reiji
Yamauchi Kazuhiko
Descriptions
In order to compare between retinal and choroidal dirdulation by the video-densitometric image analysis. I set the region of interest (ROI) at artery, vein, background area (choroid), papillomacular area (peripapilla) and macular area (macula). 1) The appearance time is the first in artery, and the second in choroid. Compared between the upper and lower regions, the time is prolonged in the lower region of vein and choroid. 2) The build-up time is shortest in artery and the second in choroid. 3) The washout rate was the slower in the lower region. Thus, these results suggested that the effect of static pressure refered to the venous and choroidal circulation in the eye.