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مقاله
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Abstract
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Title:
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Optical Coherence Tomography Angiography of Retinal Artery Occlusion
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Author(s):
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Mojtaba Abrishami MD
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Presentation Type:
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Oral
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Subject:
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Posterior Segment
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Others:
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Presenting Author:
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Name:
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Mojtaba Abrishami
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Affiliation :(optional)
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Eye Research Center, Khatam Eye Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
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E mail:
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mojtaba_abrishami@yahoo.com
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Phone:
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05138433192
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Mobile:
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09129377278
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Purpose:
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To evaluate retinal vascular layers in Retinal Artery Occlusion (RAO) imaged by Optical Coherence Tomographic Angiography (OCTA).
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Methods:
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A series of 4 eyes with acute RAO were enrolled in an observational case series study. Acute RAO was defined as retinal whitening and ischemia, and on OCT B-scan, inner retinal thickening with disruption of the retinal layers. OCTA cube scans (3×3 mm) were acquired using the RTVue-XR Avanti AngioVue, with Split-Spectrum Amplitude-Decorrelation Angiography algorithm, and motion correction technology. Images of the superficial and deep capillary plexus were analyzed and compared with structural Optical Coherence Tomography (OCT).
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Results:
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OCTA findings were as decreased vascular perfusion in both the superficial and deep capillary plexuses corresponding to the areas of the inner retinal changes on OCT B-scan and fundus changes. Only large vessels were imaged. No vascular flow was observed in area nourished by the microvascular bed.
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Conclusion:
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OCTA is a useful diagnostic tool used to demonstrate the features necessary to diagnose RAO. Compared to FA, OCTA is fast, noninvasive, and can provide improved visualization of microvascular details.
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Attachment:
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