使用前段光学一致性断层扫描检测微生物角质炎中内皮质斑块的检测
medRxiv : the preprint server for health sciences
|February 12, 2026
概括
前段光学连贯性断层扫描 (ASOCT) 可靠地检测微生物角质炎中的内皮质斑块,性能优于裂纹灯检查. ASOCT提供可重现的结果与高等级协议,支持其在临床协议中的使用.
科学领域:
- 眼科医生 眼科 眼科
- 医疗成像医学成像
- 传染性疾病 传染性疾病
背景情况:
- 微生物角膜炎是导致视力丧失的重要原因.
- 内皮质斑块是微生物角质炎的关键指标.
- 精确检测内皮质斑块对于及时治疗至关重要.
研究的目的:
- 通过使用前段光学连贯性断层扫描 (ASOCT) 来评估分级内皮质斑块的一致性.
- 为了比较ASOCT检测内皮质斑块的检测与传统的裂纹灯检查.
- 评估ASOCT在诊断微生物角质炎中的可靠性.
主要方法:
- 一项诊断一致性研究,涉及150名确诊的细菌或真菌角膜炎患者.
- 两个蒙面眼科医生独立对ASOCT图像进行了分级,以检测内皮质斑块的存在和形态 (圆形和平面).
- 使用科恩的kappa,灵敏度,特异性和物流回归来评估协议.
主要成果:
- ASOCT表现出优异的级别间协议 (kappa 0.84-0.88) 和实质性到近乎完美的级别内部协议 (kappa 0.70-0.86).
- 通过ASOCT检测到55.3%的眼睛内皮质斑块,而通过裂纹灯检查则为6.0%.
- 与ASOCT相比,裂灯检查显示斑块检测的灵敏度低 (6.2%-16.3%),尽管特异性高 (>94%).
- 视觉敏度低下和细菌感染与ASOCT和裂纹灯发现之间的不一致性增加有关.
结论:
- ASOCT提供了一种可复制和可靠的方法,用于检测微生物角质炎中的内皮质斑块.
- 与ASOCT相比,灯检查显著低于检测内皮质斑块.
- 应考虑ASOCT成像用于微生物角膜炎的例行评估.
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