在糖尿病患者中预测OCTA的血管变化.
Jelena Cuk1, Dejana Stanisavljevic2,3, Jelena Vasilijevic1,2
1Clinic for Eye Disease, University Clinical Centre of Serbia, 11000 Belgrade, Serbia.
Biomedicines
|June 26, 2025
概括
光学连贯断层扫描血管造影 (OCTA) 显示糖尿病患者血管密度 (VD) 降低,表明早期糖尿病黄斑变化. 特定的静脉疾病减少和状血管区域变化可能作为糖尿病视网膜病变进展的生物标志物.
科学领域:
- 眼科医生 眼科 眼科
- 糖尿病学 糖尿病学
- 医疗成像医学成像
背景情况:
- 糖尿病黄斑变化是糖尿病患者视力丧失的主要原因.
- 早期发现糖尿病视网膜病变对于及时干预和预防视力障碍至关重要.
- 光学连贯断层扫描血管学 (OCTA) 提供了一种非侵入性方法来可视化和量化视网膜微血管.
研究的目的:
- 调查糖尿病患者和健康对照人群之间的OCTA参数的定量差异.
- 为了确定糖尿病黄斑变化的早期OCTA生物标志物.
- 评估不同视网膜和区域的血管密度 (VD) 和状血管区域 (FAZ) 的变化.
主要方法:
- 对糖尿病患者 (有或没有轻度糖尿病视网膜病变) 和健康对照进行了眼科检查和OCTA.
- 计算了表面毛细管 (SCP) 和深层毛细管 (DCP) 中的斑点,,周围和副血管密度 (VD).
- 测量了叶无血管区 (FAZ) 和胆囊细胞流量区域.
主要成果:
- 与对照人群相比,患有视网膜病变的糖尿病患者在多个黄斑区域的SCP和DCP中显示出减少的VD.
- 在患有视网膜病变的糖尿病患者中,在SCP中观察到形视网膜病变的增加.
- 在患有视网膜病变的糖尿病患者中,观察到FAZ和choriocapillaris流域的减少.
结论:
- 在SCP和DCP的静脉疾病减少,特别是在黄斑和膜区域,可能意味着糖尿病视网膜病变的进展.
- 增加的骨SCP VD可能代表一个补偿机制.
- 减少的周围膜和斑点SCP VD可以作为亚临床糖尿病斑点变化的查因素.
- 在视网膜病变的临床迹象之前FAZ的减少可能表明早期的补偿性血管反应.
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