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Inter-examiner agreement of the AS-OCT Visante corneal thickness

机译：AS-OCT Visante角膜厚度的检查者间协议

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Purpose: To determine the inter-examiner agreement of the manual values of central and peripheral corneal thickness as measured by optical coherence tomography (AS-OCT Visante) and to assess the agreement between AS-OCT Visante pachymetry, Orbscan II and ultrasound pachymetry (USP). Methods: Central and peripheral (4.0mm from the corneal centre to the superior, inferior, nasal and temporal areas) corneal thickness was analyzed in 30 eyes of 15 patients (mean age, 26.8+/-6.8 years), with the AS-OCT Visante both automatically (Global-Pachymetry Map) and manually (Flap Tool). The Orbscan II and USP (Corneo-Gage Plus) pachymetry were also assessed. Inter-examiner reproducibility for the manual values of the AS-OCT Visante was calculated. Automatic and manual AS-OCT pachymetries were compared for all corneal locations. Results: Good inter-examiner agreement was obtained for the manual values of the AS-OCT Visante for all locations studied (p=1.00). The automatic value was significantly different from the manual value for both central and inferior pachymetry (37+/-10@mm and 27+/-11@mm respectively; p<0.05). Good linear correlation was found between the automatic AS-OCT Visante, the Orbscan II and USP, although there were statistically significant differences (p<0.01) between all of the corneal locations, with the exception of the manual values of the AS-OCT Visante and the Orbscan II for the central corneal thickness (CCT) measures. Conclusions: The AS-OCT Visante has high inter-examiner agreement for manual values (Flap Tool). The automatic analysis (Global-Pachymetry Map) provides different corneal thickness values (centrally and peripherally) than those obtained manually for the same corneal scan.
机译：目的：确定通过光学相干断层扫描（AS-OCT Visante）测量的角膜中央和周边角膜厚度的手动值与检查者之间的一致性，并评估AS-OCT Visante测厚法，Orbscan II和超声测厚法（USP）之间的一致性）。方法：采用AS-OCT技术对15例患者（平均年龄26.8 +/- 6.8岁）的30眼进行角膜中央和周围（距角膜中心至上，下，鼻和颞区域4.0mm）的分析自动（全局测绘贴图）和手动（翻转工具）都可见。还评估了Orbscan II和USP（Corneo-Gage Plus）测厚仪。计算了AS-OCT Visante手册值的考官间可重复性。比较了所有角膜位置的自动和手动AS-OCT测距仪。结果：在所有研究地点，AS-OCT Visante的手动值均获得了良好的审查员同意（p = 1.00）。对于中央和下部测厚法，自动值与手动值显着不同（分别为37 +/- 10 @ mm和27 +/- 11 @ mm; p <0.05）。在自动AS-OCT Visante，Orbscan II和USP之间发现了良好的线性相关性，尽管除AS-OCT Visante的手动值外，所有角膜位置之间在统计学上都有显着差异（p <0.01） Orbscan II用于测量中央角膜厚度（CCT）。结论：AS-OCT Visante对于手动值（襟翼工具）具有很高的内部检验员协议。自动分析（全局测厚图）提供的角膜厚度值（在中心和外围）与在相同角膜扫描中手动获得的值不同。

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