使用拓普康ImageNet和海德堡视网膜断层扫描仪进行视盘地形图测量的可重复性
Reproducibility of optic disk topographic measurements with the Topcon ImageNet and the Heidelberg Retina Tomograph.
作者信息
Azuara-Blanco A, Harris A, Cantor L B
机构信息
Department of Ophthalmology, Indiana University, School of Medicine, Indianapolis, USA.
出版信息
Ophthalmologica. 1998;212(2):95-8. doi: 10.1159/000027286.
OBJECTIVE
To compare the reproducibility of optic disk measurements provided by an image analyzer and a scanning laser tomograph.
METHODS
Ten images of the same eye of 10 normal volunteers were taken with the Heidelberg Retina Tomograph and with the Topcon ImageNet. Intraclass correlation coefficient (ICC) and coefficient of variation (CV) were used to evaluate the reproducibility of the measurements.
RESULTS
Eleven parameters were analyzed with the Topcon ImageNet. Six parameters (55%) had ICC greater than 90%. Four parameters (36%) had CV less than 10%. Twelve parameters were evaluated with the Heidelberg Retina Tomograph. Nine parameters (75%) had ICC over 90%. Nine parameters (75%) had CV less than 10%.
CONCLUSION
Both systems provided reproducible data. The optic disk parameters provided by the Heidelberg Retina Tomograph had a better reproducibility than those obtained from the Topcon ImageNet.
目的
比较图像分析仪和扫描激光断层扫描仪所提供的视盘测量结果的可重复性。
方法
使用海德堡视网膜断层扫描仪和拓普康ImageNet对10名正常志愿者同一只眼睛拍摄10张图像。组内相关系数（ICC）和变异系数（CV）用于评估测量结果的可重复性。
结果
使用拓普康ImageNet分析了11个参数。6个参数（55%）的ICC大于90%。4个参数（36%）的CV小于10%。使用海德堡视网膜断层扫描仪评估了12个参数。9个参数（75%）的ICC超过90%。9个参数（75%）的CV小于10%。
结论
两种系统均提供了可重复的数据。海德堡视网膜断层扫描仪所提供的视盘参数比拓普康ImageNet所获得的参数具有更好的可重复性。
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