Department of Retina and Vitreous, Narayana Nethralaya, #121/C, Chord Road, 1st R block Rajaji Nagar, Bangalore, 560080, India.
Int Ophthalmol. 2020 Dec;40(12):3431-3439. doi: 10.1007/s10792-020-01529-8. Epub 2020 Jul 31.
Purpose To describe the multicolour imaging (MI) findings in superficial and deep vascular plexus occlusions.
In this retrospective observational study, patients diagnosed with central retinal artery and branch retinal artery occlusion, cotton-wool spot, paracentral acute middle maculopathy and acute macular neuroretinopathy between January 2018 and June 2019 were included. Colour fundus photograph, optical coherence tomography and MI of these patients were analysed.
A total of 41 eyes of 40 patients were included in this study. In eyes with central retinal artery occlusion, MI showed white areas in the retina with orange foveal centre. In eyes with branch retinal artery occlusion, MI showed white area along the affected retinal quadrant without an orange foveal centre. In pure superficial vascular plexus occlusions as in cotton-wool spots, the lesion was identified on MI as a white lesion. On MI, paracentral acute middle maculopathy showed parafoveal white areas with orange foveal centre while acute macular neuroretinopathy on MI parafoveal greyish-white areas with normal foveal centre.
En-face images using MI technology can provide yet another way to identify the level of retinal vasculature involvement which complements the existing gold standard of optical coherence tomography imaging.
描述浅层和深层血管丛阻塞的多色成像（MI）表现。
在这项回顾性观察研究中，纳入了 2018 年 1 月至 2019 年 6 月期间被诊断为视网膜中央动脉和分支视网膜动脉阻塞、棉絮斑、旁中心性急性中黄斑病变和急性黄斑神经视网膜病变的患者。对这些患者的彩色眼底照片、光学相干断层扫描和 MI 进行了分析。
本研究共纳入 40 例 41 只眼。在视网膜中央动脉阻塞的眼中，MI 显示视网膜上有白色区域，黄斑中心呈橙色。在分支视网膜动脉阻塞的眼中，MI 显示受累视网膜象限的白色区域，没有橙色黄斑中心。在单纯浅层血管丛阻塞，如棉絮斑中，MI 上的病变为白色病变。在旁中心性急性中黄斑病变中，MI 显示旁黄斑区有白色区域，黄斑中心呈橙色，而急性黄斑神经视网膜病变的 MI 则显示旁黄斑区有灰白色区域，黄斑中心正常。
使用 MI 技术的层叠图像可以提供另一种识别视网膜血管受累程度的方法，补充了现有的光学相干断层扫描成像的金标准。
