在宿舍期间的肌引能够诱导视神经头部变形
Tingting Liu1,2, Kehao Wang1,3, Ya Xing Wang4
1Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China.
Eye (London, England)
|January 4, 2025
概括
住宿期间的肌引会导致视神经头部显著变形. 较硬的眼组织会放大这种效果,增加眼膜的压力.
科学领域:
- 眼科医生 眼科 眼科
- 生物力学 生物力学
- 医疗成像医学成像
背景情况:
- 适应包括肌收缩,这可能会影响眼内结构.
- 视神经头部 (ONH) 变形是绿眼病发病的一个关键因素.
- 了解适应对ONH的影响对于诊断和管理视神经病变至关重要.
研究的目的:
- 通过有限元素 (FE) 建模和光学连贯性断层扫描 (OCT) 成像,研究肌伸缩对在适应期间ONH变形的影响.
- 分析眼组织度的变化如何影响住宿诱导的ONH菌株.
主要方法:
- 开发了一种FE模型,模拟在适应过程中模拟状肌肉的引力.
- 膜,膜,布鲁赫膜 (BM),前层神经组织和板状神经膜 (LC) 的刚度在参数上有所不同.
- 在20名受试者的ONH在0D和6D住宿期间进行了体内OCT成像,以验证模型并测量ONH菌株,胆道厚度和BMO变化.
主要成果:
- FE建模表明,状肌肉的拉力通过胆膜和BM传输到ONH.
- 适应诱导的LC菌株 (0.057 ± 0.033) 显著高于静止状态 (0.023 ± 0.014).
- 增加的胆道和骨硬度导致了更大的住宿诱导的LC应变,与45mmHg的内压升高相比.
结论:
- 在适应过程中,状肌肉的引会诱导大量的ONH变形.
- 较硬的胸膜和BM组织增强了对ONH的引力传递,增加了LC应变.
- 这些发现突出了适应和视神经健康之间的潜在生物力学联系.
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