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Associations of quantitative contrast sensitivity with vascular metrics on widefield swept-source OCT angiography across stages of diabetic retinopathy
British Journal of Ophthalmology ( IF 3.7 ) Pub Date : 2024-12-01 , DOI: 10.1136/bjo-2023-323900
Filippos Vingopoulos 1, 2 , Grace Baldwin 2 , Raviv Katz 2 , Ying Cui 2, 3 , Jade Y Moon 2 , Itika Garg 2 , Rebecca Zeng 2 , Nimesh A Patel 1 , David Wu 1 , Deeba Husain 1 , Joan W Miller 1 , Leo A Kim 1 , Demetrios G Vavvas 1 , John B Miller 2, 4
Affiliation  

Purpose To investigate structure–function associations between contrast sensitivity (CS) and widefield swept-source optical coherence tomography angiography (WF SS-OCTA) vascular metrics across stages of non-proliferative (NPDR) and proliferative diabetic retinopathy (PDR), without diabetic macular oedema. Methods Prospective cross-sectional study in 140 eyes of 99 patients: 33 mild NPDR, 24 moderate/severe NPDR, 15 PDR, 33 diabetic without DR (DMnoDR) and 46 control eyes. Mixed-effects multivariable regression models to evaluate associations between quantitative contrast sensitivity function (Adaptive Sensory Technology) and vessel density (VD) and vessel skeletonised density (VSD) in the superficial capillary plexus (SCP) and deep capillary plexus (DCP) on same-day imaging with WF SS-OCTA (Plex Elite 9000, Carl Zeiss Meditec). Results Standardised β coefficients for area under the logarithm of contrast sensitivity function curve (AULCSF) versus visual acuity (VA) at 3×3 mm scans: SCP VSD (β=0.32, p<0.001 vs −0.18, p=0.044), DCP VSD (β=0.30, p<0.001 vs −0.21, p=0.02), SCP VD (β=0.25, p=0.004 vs −0.13, p=0.129), DCP VD (β=0.26, p=0.003 vs −0.19, p=0.034). AULCSF was significantly reduced in mild NPDR (β=−0.28, p<0.001) and DMnoDR (β=−0.19, p=0.005) versus controls, while VA was not significantly different. AULCSF performed better than VA in differentiating between controls and DMnoDR (0.69 vs 0.50), controls and mild NPDR (0.76 vs 0.61) and controls and moderate/severe NPDR (0.89 vs 0.73). Conclusions DR-induced microvascular changes on OCTA are associated with larger changes on CS than in VA. CS is affected earlier than VA in the course of DR and performed better in discriminating between controls, DMnoDR and across DR stages. Data are available upon reasonable request.

中文翻译:


跨糖尿病视网膜病变阶段的宽场扫描源 OCT 血管造影的定量对比敏感度与血管指标的关联



目的 探讨非增殖性 (NPDR) 和增殖性糖尿病视网膜病变 (PDR) 阶段的对比敏感度 (CS) 和宽场扫描源光学相干断层扫描血管造影 (WF SS-OCTA) 血管指标之间的结构-功能关联,无糖尿病性黄斑水肿。方法 对 99 例患者的 140 只眼进行前瞻性横断面研究: 33 例轻度 NPDR、24 例中度/重度 NPDR、15 例 PDR、33 例无 DR 糖尿病 (DMnoDR) 和 46 例对照眼。混合效应多变量回归模型,用于评估浅表毛细血管丛 (SCP) 和深毛细血管丛 (DCP) 中定量对比敏感度函数(自适应感觉技术)与血管密度 (VD) 和血管骨架密度 (VSD) 之间的关联在当天使用 WF SS-OCTA(Plex Elite 9000,Carl Zeiss Meditec)进行成像。结果 3×3 mm 扫描时对比敏感度函数曲线对数下面积 (AULCSF) 与视力 (VA) 的标准化 β 系数:SCP VSD(β=0.32,p<0.001 vs -0.18,p=0.044),DCP VSD(β=0.30,p<0.001 vs -0.21,p=0.02),SCP VD(β=0.25,p=0.004 vs -0.13,p=0.129),DCP VD(β=0.26, p=0.003 vs -0.19,p=0.034)。与对照组相比,轻度 NPDR (β=-0.28,p<0.001) 和 DMnoDR (β=-0.19,p=0.005) 的 AULCSF 显著降低,而 VA 无显著差异。AULCSF 在区分对照组和 DMnoDR (0.69 对 0.50)、对照组和轻度 NPDR (0.76 对 0.61) 以及对照组和中度/重度 NPDR (0.89 对 0.73) 方面表现优于 VA。结论 DR 诱导的 OCTA 微血管变化与 CS 的变化比 VA 更大相关。在 DR 过程中,CS 比 VA 更早受到影响,并且在区分对照、DMnoDR 和跨 DR 分期方面表现更好。 数据可根据合理要求提供。
更新日期:2024-11-22
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