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在慢性Leber遗传光神经病变中,状细胞复合体厚度和视觉功能
Johan Hedström1, Maria Nilsson1, Martin Engvall2
1Department of Clinical Neuroscience, Division of Eye and Vision, Unit of Optometry, Karolinska Institutet, Stockholm, Sweden.
Investigative ophthalmology & visual science
|October 4, 2024
概括
精确的斑点质细胞综合体 (GCC) 厚度测量对于监测勒伯遗传性视神经病变 (LHON) 至关重要. 手动纠正光学连贯断层扫描 (OCT) 分段错误改善了LHON患者与视觉功能的相关性.
科学领域:
- 眼科医生 眼科 眼科
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
背景情况:
- 勒伯遗传性视神经病变 (LHON) 是一种线粒体疾病,导致急性或亚急性视力丧失.
- 通过光学连贯断层扫描 (OCT) 评估的斑点质细胞复合体 (GCC) 厚度是视网膜神经纤维层损伤的关键指标.
- 自动化OCT细分可以在GCC厚度测量中引入错误,这可能会影响慢性LHON的疾病监测.
研究的目的:
- 评估手动纠正的黄斑质细胞综合体 (GCC) 厚度和慢性勒伯遗传性视觉神经病变 (LHON) 的视觉功能之间的相关性.
- 评估自动细分错误对LHON患者GCC厚度测量的影响.
主要方法:
- 招募了26名慢性LHON患者,其中60%接受了idebenone或CoQ10治疗.
- 使用爱荷华州参考算法分析光学连贯性断层扫描 (OCT) 扫描,在九个黄斑部门中手动纠正细分.
- 使用最佳校正视敏度 (BCVA) 和视野测试 (埃斯特曼和定制30度测试) 评估视觉功能.
主要成果:
- 与手动校正相比,自动细分高估了1630微米的GCC厚度,与手动校正相比 (P < 0.001).
- 所有部门的修正GCC厚度与BCVA,平均缺陷和Esterman分数有显著的相关性.
- 外部部与视觉功能参数的相关性最强 (例如,BCVA:r = 0.604,P < 0.001).
- 接受治疗的受试者具有更好的BCVA (P = 0.017),但在接受治疗和未接受治疗的组之间没有观察到GCC厚度或视野得分的显著差异.
结论:
- 手动校正的GCC厚度测量与慢性LHON的视觉功能有很好的相关性.
- 对于监测LHON进展和治疗疗效而言,自动化OCT分析中的细分错误可能是误导性的.
- 精确的GCC测量,通过仔细的OCT细分评估来实现,对于监测LHON的结构变化至关重要.
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