Optical Coherence Tomography Angiography Examinations in Chronic Retinal Artery Occlusion (RAO-OCTA)
研究概览
详细说明
Occlusion of the retinal arteries is an emergency which causes sudden, painless unilateral vision loss. Loss of blood flow causes ischemic damage to the retina. The extent of damage depends on the area affected.
Following the acute phase of the disease re-canalization occurs and lesser blood flow can be detected usually without functional recovery.
Purpose of the study is to examine the retinal blood flow in chronic cases of retinal artery occlusion.
Standard procedures to examine this disease include retinoscopy following pupil dilation, fluorescein angiography and more recently, optical coherence tomography (OCT).
The latest direction in OCT development was OCT angiography (OCTA) which is a software upgrade that allows detection of blood flow based on motion contrast. Similar to previous OCT machines OCTA is also non-invasive and non-contact and does not require any intravenous agents.
OCT machines are approved in the EU and the US and are not experimental devices.
The device used in this study is the commercially available Zeiss Cirrus HD OCT Angioplex 5000 that operates with spectral-domain technology.
研究类型
注册 (实际的)
联系人和位置
学习地点
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Budapest、匈牙利、1085
- Semmelweis University, Department of Ophthalmology
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
取样方法
研究人群
描述
Inclusion Criteria:
- central or branch retinal artery occlusion
- at least 6 months of onset
- signed informed consent
Exclusion Criteria:
- known epilepsy
- incapacity
- presence of optical media opacities that would disturb the imaging
- presence of other retinal diseases that would disturb the evaluation of images
学习计划
研究是如何设计的?
设计细节
队列和干预
团体/队列 |
干预/治疗 |
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控制
健康
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OCTA scans per built-in device protocol
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CRA
Patients with chronic retinal artery occlusion
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OCTA scans per built-in device protocol
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研究衡量的是什么?
主要结果指标
结果测量 |
大体时间 |
---|---|
Capillary density in relation to healthy subjects
大体时间:Through study completion, 1 year
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Through study completion, 1 year
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次要结果测量
结果测量 |
大体时间 |
---|---|
Correlation of capillary density and retinal thickness
大体时间:Through study completion, 1 year
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Through study completion, 1 year
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合作者和调查者
调查人员
- 首席研究员:Miklos Schneider、Semmelweis University, Department of Ophthalmology
出版物和有用的链接
一般刊物
- Jia Y, Bailey ST, Hwang TS, McClintic SM, Gao SS, Pennesi ME, Flaxel CJ, Lauer AK, Wilson DJ, Hornegger J, Fujimoto JG, Huang D. Quantitative optical coherence tomography angiography of vascular abnormalities in the living human eye. Proc Natl Acad Sci U S A. 2015 May 5;112(18):E2395-402. doi: 10.1073/pnas.1500185112. Epub 2015 Apr 20.
- Bonini Filho MA, Adhi M, de Carlo TE, Ferrara D, Baumal CR, Witkin AJ, Reichel E, Kuehlewein L, Sadda SR, Sarraf D, Duker JS, Waheed NK. OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY IN RETINAL ARTERY OCCLUSION. Retina. 2015 Nov;35(11):2339-46. doi: 10.1097/IAE.0000000000000850.
- Chalam KV, Sambhav K. Optical Coherence Tomography Angiography in Retinal Diseases. J Ophthalmic Vis Res. 2016 Jan-Mar;11(1):84-92. doi: 10.4103/2008-322X.180709.
- Samara WA, Say EA, Khoo CT, Higgins TP, Magrath G, Ferenczy S, Shields CL. CORRELATION OF FOVEAL AVASCULAR ZONE SIZE WITH FOVEAL MORPHOLOGY IN NORMAL EYES USING OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY. Retina. 2015 Nov;35(11):2188-95. doi: 10.1097/IAE.0000000000000847.
- Savastano MC, Lumbroso B, Rispoli M. IN VIVO CHARACTERIZATION OF RETINAL VASCULARIZATION MORPHOLOGY USING OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY. Retina. 2015 Nov;35(11):2196-203. doi: 10.1097/IAE.0000000000000635.
- Spaide RF. VOLUME-RENDERED ANGIOGRAPHIC AND STRUCTURAL OPTICAL COHERENCE TOMOGRAPHY. Retina. 2015 Nov;35(11):2181-7. doi: 10.1097/IAE.0000000000000764.
- Yu S, Lu J, Cao D, Liu R, Liu B, Li T, Luo Y, Lu L. The role of optical coherence tomography angiography in fundus vascular abnormalities. BMC Ophthalmol. 2016 Jul 13;16:107. doi: 10.1186/s12886-016-0277-2.
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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