2005
DOI: 10.1186/1471-2415-5-8
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Automated analysis of digital fundus autofluorescence images of geographic atrophy in advanced age-related macular degeneration using confocal scanning laser ophthalmoscopy (cSLO)

Abstract: Background: Fundus autofluorescence (AF) imaging using confocal scanning laser ophthalmoscopy (cSLO) provides an accurate delineation of areas of geographic atrophy (GA).

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Cited by 68 publications
(46 citation statements)
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“…An important source of measurement error is the method of quantifying the GA area. 39 The analysis shows substantial random effects. In both models, the greatest source of variation is the interindividual variability (Var(α i ) and Var(α ij )), i.e.…”
Section: Discussionmentioning
confidence: 98%
“…An important source of measurement error is the method of quantifying the GA area. 39 The analysis shows substantial random effects. In both models, the greatest source of variation is the interindividual variability (Var(α i ) and Var(α ij )), i.e.…”
Section: Discussionmentioning
confidence: 98%
“…For each visit, the status of the fovea with regard to any atrophy involvement within a circle of 300 mm in diameter centered on the fovea was classified as "foveal" or "extrafoveal" GA. For each visit, the total size of atrophy was measured by a semiautomatic procedure, which has been described in detail. 18,19 Briefly, the reader manually set a seeding point inside the atrophic region to start an automatic region-growing algorithm that detected well-demarcated areas of severely decreased FAF signal. The reader then manually adjusted the threshold of the algorithm.…”
Section: Methodsmentioning
confidence: 99%
“…The total size of uni- or multifocal GA was measured on processed and registered FAF images using customized image analysis software according to predefined grading instructions, as previously described [26,27]. For further analyses, total GA lesion size was square root transformed to reduce the dependency of growth rates on baseline lesion size measurements [√area (mm)] [15,28].…”
Section: Methodsmentioning
confidence: 99%