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在正常眼睛和青光眼中,扫描源和光谱域OCT之间的宽和立方扫描测量的一致性和精度
Huiyuan Hou1, Nevin W Ei-Nimri1, Mary K Durbin1
1Topcon Healthcare.
Research square
|June 19, 2023
概括
从扫描源OCT (SS-OCT) 和光谱域OCT (SD-OCT) 设备的广泛扫描显示了对青光眼的测量非常好的一致性. 这表明可互操作性和潜在的实用性,用于管理眼.
科学领域:
- 眼科医生 眼科 眼科
- 医疗成像医学成像
- 玻璃眼研究研究 玻璃眼研究
背景情况:
- 精确测量眼部结构对于诊断和治疗青光眼至关重要.
- 为了临床采用和数据的一致性,比较不同的光学连贯性断层扫描 (OCT) 设备至关重要.
研究的目的:
- 为了评估扫描源OCT (Triton) 和光谱域OCT (Maestro) 之间的协议,在正常眼睛和青光眼中进行宽扫描测量.
- 为了评估两种OCT设备的宽和立方扫描的测量精度.
主要方法:
- 来自Triton和Maestro OCT设备的宽 (12mm×9mm) 和立方扫描 (斑点和光盘) 的比较.
- 包括25个正常眼睛和25个青光眼睛,随机操作员/设备配置和测试顺序.
- 使用布兰德-阿尔特曼和德明回归方法分析圆皮状视网膜神经纤维层 (cpRNFL),状细胞层+内状层 (GCL+) 和状细胞复合体 (GCL++) 厚度.
主要成果:
- 对于设备和扫描类型,观察到低精度极限 (黄斑<5μm,光盘<10μm).
- 广泛的扫描显示了Triton和Maestro之间很好的一致性 (所有参数的平均差异为3μm).
- 表明了互操作性,与宽和立方体扫描之间的精度相似.
结论:
- 从SS-OCT和SD-OCT设备的广泛扫描显示出出色的一致性,支持它们在临床实践中的互换性使用.
- 高精度和一致性表明,单一次宽扫描可能足以进行全面的青光眼评估.
- 这些发现促进了多中心研究和在不同OCT平台上一致的眼病管理.
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