Peripheral arterial filling time and peripheral retina fluorescence features in ultra-widefield angiography  

作　　者：Hai-Cheng She Xi-Fang Zhang Yong-Peng Zhang Xuan Jiao Hai-Ying Zhou 

机构地区：[1]Beijing Tongren Eye Center,Beijing Tongren Hospital,Capital Medical University,Beijing Ophthalmology and Visual Sciences Key Laboratory,Beijing 100730,China

出　　处：《International Journal of Ophthalmology(English edition)》2021年第7期1034-1040,共7页国际眼科杂志（英文版）

基　　金：Supported by Capital Health Development Research Special Fund(No.2020-2-2053)。

摘　　要：AIM:To evaluate the peripheral arterial filling time(PAFT)and venous filling time(VFT)in eyes without known diseases that may influence filling process using ultra-widefield(UWF)fluorescein angiography(FA),and to review the peripheral retina fluorescence features.METHODS:A total of 30 eyes of 30 patients were retrospectively reviewed in this observational study.UWFFA was performed using Optos 200Tx.PAFT and VFT was recorded.The interval between the arterial or venous filling completion and the previous photo was documented.The appearance of the far peripheral retina was described as either granular background fluorescence or mottled fluorescent band or vascular leakage.Terminal vascular patterns was described as loop pattern or branching pattern.Microvascular abnormalities such as arteriovenous shunting,vessels crossing the horizontal raphe,right angle vessels,terminal networks,capillary nonperfusion,drusen or microaneurysms were evaluated.RESULTS:The normal limits of PAFT was 3.397-8.984s and 4.399-11.753s for VFT.The appearance of the far peripheral retina,defined as granular background(63%),mottled fluorescence(20%),or vascular leakage(17%),was symmetrical between both eyes.Capillary nonperfusion(23%)and microaneurysms(40%)were more frequently found in eyes with loop pattern than in eyes with branching pattern.Other peripheral signs such as right-angle vessels(73%),and terminal networks(80%)were commonly seen on UWF-FA in the normal peripheral retina.CONCLUSION:The main courses of retinal artery and vein filling time are overlapping with each other on UWF-FA.Notably,the arterial filling process is completed in the arteriovenous phase rather than the traditionally named arterial phase.There are various manifestations in the peripheral retina of normal eyes.

关 键 词：peripheral arterial filling time venous filling time ultra-widefield fluorescein angiography peripheral retina fluorescence features 

分 类 号：R774.1[医药卫生—眼科]