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检测窄角的前段OCT:一个基于社区的诊断准确性研究

Sangita Pradhan¹, Ranjeet K Sah¹, Gopal Bhandari¹

¹Bharatpur Eye Hospital, Bharatpur, Nepal.

Ophthalmology. Glaucoma

|August 23, 2023

概括

前段光学连贯性断层扫描 (AS-OCT) 显示出在老年人中检测狭窄排水角度的前景. 750μm (AOD750) 参数的角度开口距离是识别这些角度的关键指标.

科学领域:

眼科医生眼科眼科
医疗成像医学成像
公共卫生公共卫生

背景情况:

玻璃眼是全球不可逆转失明的主要原因.
早期检测狭窄的排水角度对于预防闭角玻璃眼病至关重要.
前段光学连贯断层扫描 (AS-OCT) 提供了一种非接触式的角度评估方法.

研究的目的:

为了评估AS-OCT在识别视器狭窄角的诊断准确性.
为了比较不同的AS-OCT参数对角度评估的性能.
确定AS-OCT在基于人口的查环境中的有用性.

主要方法:

在尼泊尔进行了一项基于人口的横截面研究.
60岁及以上的个人通过门户普查被招募.
参与者接受了AS-OCT,后段OCT和眼内压力 (IOP) 测试;那些符合转诊标准的人由专家进行了视镜检查.

主要成果:

这项研究包括12,633名60岁以上的参与者.
五个AS-OCT参数显示了对窄角的良好诊断能力 (AUC 0.85-0.89).
在750微米的角度开口距离 (AOD750) 显示在367微米切割点的最佳灵敏度 (87%) 和特异性 (77%),在90%的特异性 (283微米切割点) 显示在65%的灵敏度.

结论:

AS-OCT,特别是AOD750参数,可以有效地选光学上狭窄的角度.
虽然敏感度可能不足以进行足部查,但AS-OCT在与后部段OCT结合时提供了增加的好处.
这项技术有可能在社区环境中加强青光眼查计划.

关键词:

眼睛的前部部分是眼睛的前部部分.眼光障碍,闭合角的发生.敏感性和特异性敏感性和特异性断层扫描,光学断层扫描,光学断层

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