葡萄膜炎OCTA表现与分析的研究进展

The presentations of uveitis on OCTA images and interpretations

相干光层析血管成像术(OCTA)可反映葡萄膜炎患眼前节、脉络膜和视网膜血管的形态改变,包括脉络膜毛细血管流空区、低灌注区、毛细血管异常形态、毛细血管网破坏和新生血管等,同时还可进行定量评估,包括测量黄斑中心凹无血管区面积、脉络膜新生血管面积、血管密度和血流指数。虽具有局限性,但其无创性和对血管形态精确的描绘能力有助于葡萄膜炎的观察和随访。目前对葡萄膜炎的OCTA表现解读尚不全面,本文对相关图像分析研究进行总结,以期为临床提升OCTA应用于葡萄膜炎诊疗的价值提供参考。

Optical coherence tomography angiography (OCTA) can reflect the vascular morphological changes of various types of uveitis,including flow void,hypoperfusion,capillary abnormalities,capillary network disorders and choroidal neovascularization.Moreover,OCTA is featured of particular quantification functions,such as measurement of the areas of foveal avascular zone,choroidal neovascularization,vascular density and flow index.Despite certain limitations,its characteristics of non-invasiveness and capabilities of depicting vascular details are helpful to the observation and follow-up of uveitis.As current interpretation of the OCTA images for uveitis is not thorough enough,hence further analysis of the images is needed to improve its application on uveitis.