Department of Ophthalmology, General Hospital Klagenfurt, Klagenfurt, Austria.
Ophthalmologica. 2012;227(1):34-8. doi: 10.1159/000331987. Epub 2011 Nov 10.
To evaluate the diagnostic potential of near-infrared (NIR) autofluorescence (AF) in central serous chorioretinopathy (CSC) and to present a method to analyze NIR-AF findings quantitatively.
NIR-AF images, indocyanine green (ICG) angiograms, blue-light autofluorescence (BL-AF) images and fluorescein angiograms were recorded with the use of a confocal scanning laser ophthalmoscope in 19 eyes of 17 patients with CSC. Gray-value ratios were calculated to compare the methods.
Using NIR-AF, hypofluorescent spots were observed at the leakage site in 18 of 19 eyes (94.7%). The mean gray-value ratio (±SD) was 0.55 ± 0.22 for the site of the leakage point with NIR-AF and 0.65 ± 0.35 with BL-AF. ICG angiography showed a gray-value ratio of 2.37 ± 2.07. Fluorescein angiography had the best contrast, with a gray-value ratio of 13.44 ± 15.02.
NIR-AF demonstrated CSC in 94.7% of the cases. NIR-AF may be a noninvasive alternative to detect CSC.
评估近红外(NIR)自发荧光(AF)在中心性浆液性脉络膜视网膜病变(CSC)中的诊断潜力,并提出一种定量分析 NIR-AF 结果的方法。
使用共焦扫描激光检眼镜对 17 例 19 只眼的 CSC 患者进行 NIR-AF 图像、吲哚菁绿(ICG)血管造影、蓝光自发荧光(BL-AF)图像和荧光素血管造影检查。计算灰度比值以比较这些方法。
在 19 只眼中,18 只(94.7%)眼在渗漏部位观察到低荧光点。NIR-AF 渗漏点的平均灰度比值(±SD)为 0.55±0.22,BL-AF 为 0.65±0.35。ICG 血管造影的灰度比值为 2.37±2.07。荧光素血管造影具有最佳的对比度,灰度比值为 13.44±15.02。
NIR-AF 显示 CSC 的病例占 94.7%。NIR-AF 可能是一种非侵入性替代方法,用于检测 CSC。