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首页> 外文期刊>British journal of ophthalmology >Digital imaging of the optic nerve head: monoscopic and stereoscopic analysis.
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Digital imaging of the optic nerve head: monoscopic and stereoscopic analysis.

机译：光神经头的数字成像：单镜和立体分析。

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摘要

AIMS: To compare monoscopic and stereoscopic assessment of the optic disc using novel software for the digital stereoscopic analysis of optic disc stereopairs. METHODS: Software was developed for the stereoscopic display of digital optic disc images using an interlaced display method. Neuroretinal rim width was determined at 10 degree intervals around the optic disc using a custom (stereoscopic) cursor whose depth was adjusted to that of Elschnig's rim. Measurements were taken, first viewing the disc monoscopically and at a separate sitting, stereoscopically. RESULTS: Measurements were made in 35 eyes from 35 patients (1260 estimates for each observer) using three observers. The mean cup to disc ratio (CDR) ranged from 0.57 to 0.66 (SD 0.13-0.14) for monoscopic viewing compared with 0.64 to 0.69 (SD 0.12-0.14) for stereoscopic viewing. Stereoscopic assessments gave higher CDRs in temporal, superior, nasal, and inferior aspects of the optic disc (p<0.001, Mann-Whitney U test). Agreement between observers in estimating CDR was high for monoscopic assessment (intraclass correlation coefficient 0.74 (CI 0.72 to 0.76) increasing to 0.80 (0.78 to 0.82) for stereoscopic assessment. CONCLUSION: Digital stereoscopic optic disc assessment provides lower estimates of neuroretinal rim width and higher levels of interobserver agreement compared with monoscopic assessments.
机译：目的：使用新型软件比较光盘的单声道和立体评估，用于光盘立体型的数字立体分析。方法：使用交错显示方法开发了用于数字视镜图像的立体显示的软件。在光盘周围以10度的间隔测定神经饱和缘宽度，使用定制（立体）光标，其深度调节到Elschnig的边缘的边缘。拍摄了测量，首先在立体坐姿和独立的坐着，立体坐在圆盘上。结果：使用三名观察员，35名患者（每个观察者的1260次估计）在35只眼中进行测量。用于单镜观察的单镜观察的圆盘比（CDR）的平均杯与0.64-0.69（SD 0.12-0.14）进行立体观察。立体评估在光盘的时间，优异的，鼻腔和下各方面获得更高的CDR（P <0.001，Mann-Whitney U测试）。在估计CDR之间的观察者之间的协议对于单透视评估（脑内相关系数0.74（CI 0.72至0.76）增加到0.80（0.78至0.82），用于立体评估。结论：数字立体视盘评估提供较低的神经近缘宽度和更高估计与单透视评估相比，Interobserver协议的水平。

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