Laser Speckle Flowgraphyを用いた網脈絡膜血流測定によるCEAの眼虚血改善効果の検討

芳賀 整; 江内田 寛; 赤木 洋二郎; 宇賀 愛; 庄野 禎久; 濱田 康宏; 詠田 眞治

doi:10.2335/scs.39.103

Topics: Carotid Artery Stenosis and Retinal Perfusions

Improvement of Ocular Ischemia by CEA with Chorioretinal Blood Flow Measurements Using Laser Speckle Flowgraphy

Sei HAGA, Hiroshi ENAIDA, Yojirou AKAGI, Ai UKA, Tadahisa SHONO, Yasuhiro HAMADA, Shinji NAGATA

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Keywords: carotid artery stenosis, CEA, laser speckle flowgraphy

JOURNAL FREE ACCESS

2011 Volume 39 Issue 2 Pages 103-108

DOI https://doi.org/10.2335/scs.39.103

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Abstract

We examined improvement of ocular ischemia in patients with carotid endarterectomy (CEA) with chorioretinal blood flow measurements using laser speckle flowgraphy (LSFG). LSFG allowed the quantitative measurement of chorioretinal blood flow.
Five CEA patients, 4 men and 1 women ranging in age from 59 to 79 years, with carotid stenosis were examined. Three patients were symptomatic, and 2 patients were asymptomatic. The ratio of carotid stenosis was 68% to 98%. None of the patients presented delayed arm-to-retina circulation by fluorescein angiography. Four of 5 patients presented a mean increase in chorioretinal blood flow. The mean increase ratio of blood flow was 7.84%.
LSFG was useful to evaluate peripheral blood flow in CEA patients and revealed that CEA may improve ocular ischemia.

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