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Comparison of Retinal Microvessel Blood Flow Velocities Acquired with Two Different Fields of View
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نویسنده
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zhou j. ,li m. ,chen w. ,yang y. ,hu l. ,wang l. ,jiang h. ,wang j.
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منبع
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journal of ophthalmology - 2017 - دوره : 2017 - شماره : 0
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چکیده
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To compare the different retinal blood flow velocities (bfvs) acquired with different fields of view (fovs) using the retinal function imager (rfi),twenty eyes of twenty healthy subjects were enrolled in the study. retinal microvessel bfv in the macula was acquired with both a wide fov (35 degrees,7.3 × 7.3 mm2) and a commonly used small fov (20 degrees,4.3 × 4.3 mm2). the 35-degree fov was trimmed to be equivalent to the 20-degree fov to compare the bfvs of the similar fovs using different settings. with the 35-degree fov,both retinal arteriolar and venular bfvs were significantly greater than the 20-degree fov (p<0.001). when the 20-degree fov was compared to the trimmed equivalent 20-degree fov acquired using the 35-degree fov,significant bfv differences were found in both the arterioles (p=0.029) and venules (p<0.001). this is the first study to compare retinal blood flow velocities acquired with different fovs using rfi. the conversion factor from 35 degrees to 20 degrees is 0.95 for arteriolar bfv and 0.92 for venular bfv,which may be used for comparing bfvs acquired with different fovs. © 2017 jin zhou et al.
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آدرس
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guangzhou women and children's medical center,guangzhou guangdong,china,bascom palmer eye institute,university of miami,miami,fl, United States, bascom palmer eye institute,university of miami,miami,fl,united states,department of ophthalmology,shanghai general hospital,school of medicine,shanghai jiaotong university,shanghai, China, bascom palmer eye institute,university of miami,miami,fl,united states,zhongshan ophthalmic centre,sun yat-sen university,guangzhou,guangdong, China, bascom palmer eye institute,university of miami,miami,fl,united states,school of optometry and ophthalmology,wenzhou medical university,wenzhou, China, bascom palmer eye institute,university of miami,miami,fl,united states,school of optometry and ophthalmology,wenzhou medical university,wenzhou, China, krieger school of arts and sciences,johns hopkins university,baltimore,md, United States, bascom palmer eye institute,university of miami,miami,fl,united states,department of neurology,university of miami,miami,fl, United States, bascom palmer eye institute,university of miami,miami,fl, United States
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Authors
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