Retinal pigment epithelium–Bruch’s membrane volume in grading of age-related macular degeneration  

作　　者：Fabian Kananen Ilkka Immonen 

机构地区：[1]Department of Ophthalmology,Örebro University Hospital,Örebro 70185,Sweden [2]Department of Ophthalmology and Otorhinolaryngology,Helsinki University,Helsinki 00014,Finland [3]Department of Ophthalmology,Helsinki University Central Hospital,Helsinki 00014,Finland

出　　处：《International Journal of Ophthalmology(English edition)》2023年第11期1827-1831,共5页国际眼科杂志（英文版）

摘　　要：AIM:To assess the agreement of optical coherence tomography(OCT)algorithm-based retinal pigment epithelium–Bruch’s membrane complex volume(RBV)with fundus photograph-based age-related macular degeneration(AMD)grading.METHODS:Digital color fundus photographs(CFPs)and spectral domain OCT images were acquired from 96 elderly subjects.CFPs were graded according to Age-Related Eye Disease Study(AREDS)classification.OCT image segmentation and RBV data calculation were done with OrionTM software.Univariate and multivariate analyses were performed to find out whether AMD lesion features associated with higher RBVs.RESULTS:RBV correlated with AMD grading(rs=0.338,P=0.001),the correlation was slightly stronger in early AMD(n=52;rs=0.432,P=0.001).RBV was higher in subjects with early AMD compared with those with no AMD lesions evident in fundus photographs(1.05±0.20 vs 0.96±0.13 mm3,P=0.023).In multivariate analysis higher RBVs were associated significantly with higher total drusen(β=0.388,P=0.027)and pigmentation areas(β=0.319,P=0.020)in fundus photographs,whereas depigmentation area(β=-0.295,P=0.015)associated with lower RBV.CONCLUSION:RBV correlate with AMD grading status,with a stronger association in patients with moderate,non-late AMD grades.This effect is driven mostly by lesions with drusen or pigmentation.Lesions with depigmentation tend to have lower values.RBV is more comprehensive measurement of the key area of AMD pathogenesis,compared to sole drusen volume analysis.RBV measurements are independent on grader variations and offer a possibility to quantify early and middle grade AMD lesions in a research setting,but may not substitute fundus photograph-based grading in the whole range of AMD spectrum.

关 键 词：age-related macular degeneration DRUSEN optical coherence tomography Bruch’s membrane 

分 类 号：R774.5[医药卫生—眼科]