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Distribution of Nonperfusion Area on Ultra-widefield Fluorescein Angiography in Eyes With Diabetic Macular Edema: DAVE Study

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机构: [1]Doheny Image Reading Center, Doheny Eye Institute, Los Angeles, California [2]Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, California [3]Beijing Tongren Eye Center, Beijing Tongren Hospital, Beijing Ophthalmology and Visual Sciences Key Laboratory, Capital Medical University, Beijing, China [4]Department of Ophthalmology, Beijing Friendship Hospital, Capital Medical University, Beijing, China [5]Department of Ophthalmology, Yeungnam University College of Medicine, Daegu, South Korea [6]Retina Consultants of Houston, Houston, Texas [7]Blanton Eye Institute, Houston Methodist Hospital & Weill Cornell Medical College, Houston, Texas [8]Optos PLC, Dunfermline, United Kingdom
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PURPOSE: To explore the distribution of nonperfusion area (NPA) in eyes with diabetic macular edema (DME) and its relationship with the severity of DME. DESIGN: Prospective, observational case series. METHODS: Forty eyes of 29 patients with treatment naive DME who participated in the DAVE study (NCT01552408) were included. Ultra-widefield fluorescein angiography images were sent to the Doheny Image Reading Center, where they were montaged and corrected using stereographic projection to adjust for peripheral distortion. Two experienced, independent/masked certified graders manually segmented the NPA and the total.visible retinal area (TRA), and computed the NPA and TRA in square millimeters (mm(2)). The ischemic index (ISI) was calculated. The distributions of NPA and ISI within different retinal zones were correlated with the severity of DME. RESULTS: In 40 eyes with treatment-naive DME (mean age, 55.8 years) visual acuity (VA) (mean 59.6 EDTRS letters) was correlated with central macular thickness (CMT) (mean 536.9 mu m, R = -0.418, P = .008) and macular volume (MV) (mean 11.9 mm(3), R = -0.449, P =.004). The NPA and ISI among the different retinal zones were significantly different (NPA: P < .001; ISI: P = .005). The NPA and ISI in the midperiphery were negatively 'associated with CMT (NPA: P = .04; ISI: P = .02). However, the global NPA and ISI for the entire retina were not associated with CMT or MV (P > .05). CONCLUSION: In eyes with DME, the ISI increases with increasing distance from the fovea. The severity of DME does not appear to correlate with global NPA and ISI. (C) 2017 Elsevier Inc. All rights reserved.

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出版当年[2016]版:
大类 | 2 区 医学
小类 | 2 区 眼科学
最新[2023]版:
大类 | 1 区 医学
小类 | 1 区 眼科学
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出版当年[2015]版:
Q1 OPHTHALMOLOGY
最新[2023]版:
Q1 OPHTHALMOLOGY

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第一作者机构: [1]Doheny Image Reading Center, Doheny Eye Institute, Los Angeles, California [2]Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, California [3]Beijing Tongren Eye Center, Beijing Tongren Hospital, Beijing Ophthalmology and Visual Sciences Key Laboratory, Capital Medical University, Beijing, China
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通讯机构: [1]Doheny Image Reading Center, Doheny Eye Institute, Los Angeles, California [2]Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, California [*1]Doheny Eye Institute, PO Box 86228, Los Angeles, CA 90086
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