EVALUATION OF BLOOD-FLOW AT OCULAR FUNDUS BY USING LASER SPECKLE

被引：48

作者：

AIZU, Y

OGINO, K

SUGITA, T

YAMAMOTO, T

TAKAI, N

ASAKURA, T

机构：

[1] HOKKAIDO UNIV,APPL ELECTR RES INST,SAPPORO,HOKKAIDO 060,JAPAN

[2] KOWA RES INST,TSUKUBA,IBARAKI 305,JAPAN

[3] HOKKAI GAKUEN UNIV,DEPT ELECTR & INFORMAT ENGN,SAPPORO,HOKKAIDO 064,JAPAN

来源：

APPLIED OPTICS | 1992年 / 31卷 / 16期

关键词：

D O I：

10.1364/AO.31.003020

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report a method for noninvasively evaluating blood flow at the ocular fundus by using laser speckle phenomena. The intensity fluctuation of speckles scattered from a 1-mm-diameter illuminated area at the fundus is detected and analyzed by the photon-correlation technique, which gives us the relative degree of total blood flows within the probe area. The method is used to evaluate blood flows at the ocular fundus of a rabbit and normal human volunteers. The experimental results show that the present laser speckle method is useful for the relative evaluation of blood flows in the ocular fundus tissue.

引用

页码：3020 / 3029

页数：10