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视神经外直径作为预测内高血压的一个因素
Chi Niu1, Yifan Wang1, Bin Xu1
1Department of Emergency, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Quantitative imaging in medicine and surgery
|January 12, 2026
概括
通过MRI测量的视神经外套净直径 (nONSD) 是一种非侵入性检测高内压力 (ICP) 的方法. 这一发现可能有助于管理神经紧急情况.
科学领域:
- 神经学 神经学
- 放射学 放射学是一门学科.
- 眼科医生 眼科 眼科
背景情况:
- 脑内压力 (ICP) 评估对于神经紧急情况至关重要.
- 侵入性ICP监测是有争议的,需要使用替代方法.
- MRI 提供了一种非侵入性的方法来评估 ICP 相关的参数.
研究的目的:
- 评估从头骨MRI和ICP的视神经参数之间的相关性.
- 评估这些参数在预测内高血压的诊断价值.
- 探索基于MRI的非侵入性测量对ICP评估的潜力.
主要方法:
- 追溯分析112名疑似内感染的患者.
- 测量视神经直径 (OND),视神经外直径 (ONSD) 和眼球横径 (EBTD) 通过头骨MRI.
- 净视神经外直径 (nONSD) 和ONSD:EBTD比率的计算;ICP通过腰部穿刺测量.
主要成果:
- 与正常ICP患者相比,内高血压患者的ONSD,nONSD和ONSD/EBTD显著更高.
- 在nONSD和ICP (r=0.61),ONSD和ICP (r=0.36),以及ONSD/EBTD和ICP (r=0.36) 之间观察到显著的线性相关性.
- nONSD显示了高ICP的有希望的预测准确性,在2.52mm的值下,具有88.7%的特异性和80%的积极预测值.
结论:
- 净视神经外直径 (nONSD) 显示出强大的潜力,作为升高ICP的非侵入性预测因子.
- 需要进一步的前性研究来验证nONSD的通用性和临床实用性.
- 头骨MRI衍生的nONSD可能在管理与ICP相关的神经紧急情况方面提供有价值的工具.
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