Quantitative analysis of retinal intermediate and deep capillary plexus in patients with retinal deep vascular complex ischemia  

作　　者：Xin-Xin Li Tian-Wei Qian Ya-Nan Lyu Xun Xu Su-Qin Yu 

机构地区：[1]Department of Ophthalmology,Shanghai General Hospital,Shanghai Jiao Tong University,Shanghai 200080,China [2]National Clinical Research Center for Eye Diseases,Shanghai Key Laboratory of Ocular Fundus Disease,Shanghai 200080,China [3]Shanghai Engineering Center for Visual Science and Photomedicine,Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases,Shanghai 200080,China

出　　处：《International Journal of Ophthalmology(English edition)》2021年第7期1025-1033,共9页国际眼科杂志（英文版）

基　　金：Supported by the National Natural Science Foundation of China (No.81900911);the National Key R&D Program of China (No.2016YFC0904800,No.2019YFC0840607);the National Science and Technology Major Project of China (No.2017ZX09304010);the Interdisciplinary Program of Shanghai Jiao Tong University (No.YG2019QN66)。

摘　　要：AIM: To quantitatively analyze the retinal intermediate and deep capillary plexus(ICP and DCP) in patients with retinal deep vascular complex ischemia(RDVCI), using 3D projection artifacts removal(3D PAR) optical coherence tomography angiography(OCTA).METHODS: RDVCI patients and gender-and agematched healthy controls were assessed and underwent OCTA examinations. The parafoveal vessel density(PFVD) of retinal deep vascular complex(DVC), ICP, and DCP were analyzed, and the percentage of reduction(PR) of PFVD was calculated.RESULTS: Twenty-four eyes in 22 RDVCI patients(20 in acute phase and 4 in chronic phase) and 24 eyes of 22 healthy subjects were enrolled as the control group. Significant reduction of PFVD in DVC, ICP, and DCP was observed in comparison with the controls(DVC: acute: 43.59%±6.58% vs 49.92%±5.49%, PR=12.69%;chronic: 43.50%±3.33% vs 51.20%±3.80%, PR=15.04%. ICP: acute: 40.28%±7.91% vs 46.97%±7.14%, PR=14.23%;chronic: 41.48%±2.87% vs 46.43%±3.29%, PR=10.66%. DCP: acute: 45.44%±8.27% vs 51.51%±9.97%, PR=11.79%;chronic: 37.78%±3.48% vs 51.73%±5.17%, PR=26.97%;all P<0.05). No significant PR difference was found among DVC, ICP, and DCP of RDVCI in acute phase(P=0.812), but significant difference in chronic phase(P=0.006, DVC vs DCP, ICP vs DCP). No significant difference in PR between acute and chronic phases in the DVC(P=0.735) or ICP(P=0.681) was found, but significant difference in the DCP(P=0.041).CONCLUSION: The PFVD of DVC, ICP, and DCP in RDVCI is significantly decreased in both acute and chronic phases. ICP impairment is stabilized from acute to chronic phase in RDVCI, whereas subsequent DCP impairment is uncovered and can be explained by ischemia-reperfusion damage.

关 键 词：intermediate and deep capillary plexus 3D projection artifacts removal optical coherence tomography angiography retinal deep vascular complex ischemia 

分 类 号：R774.1[医药卫生—眼科]