| 1 | Characterization of the retinal vasculature in fundus photos using the PanOptic iExaminer system显示文摘Background:The goal was to characterize retinal vasculature by quantitative analysis of arteriole-to-venule(AM)ratio and vessel density in fundus photos taken with the PanOptic iExaminer System.Methods:The PanOptic ophthalmoscope equipped with a smartphone was used to acquire fundus photos centered on the optic nerve head.Two fundus photos of a total of 19 eyes from 10 subjects were imaged.Retinal vessels were analyzed to obtain the AN ratio.In addition,the vessel tree was extracted using deep learning U-NET,and vessel density was processed by the percentage of pixels within vessels over the entire image.Results:All images were successfully processed for the AN ratio and vessel density.There was no significant difference of averaged AN ratio between the first(0.77±0.09)and second(0.77±0.10)measurements(P=0.53).There was no significant difference of averaged vessel density(%)between the first(6.11±1.39)and second(6.12±1.40)measurements(P=0.85).Conclusions:Quantitative analysis of the retinal vasculature was feasible in fundus photos taken using the PanOptic ophthalmoscope.The device appears to provide sufficient image quality for analyzing AN ratio and vessel density with the benefit of portability,easy data transferring,and low cost of the device,which could be used for pre-clinical screening of systemic,cerebral and ocular diseases. | Huling Hu Haicheng Wei Mingxia Xiao Liqiong Jjang Huijuan Wang Hong Jiang Tatjana Rundek Jianhua Wang | 2023 | Eye and Vision2023，9，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员