在急性缺血性中风中通过有效储备量化大脑健康
Markus D Schirmer1, Kenda Alhadid1, Robert W Regenhardt1
1Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
medRxiv : the preprint server for health sciences
|October 17, 2024
概括
这项研究引入了有效储备 (eR),这是一个新的大脑健康指标,结合了现有的病理学. 较高的ER与更好的中风恢复结果有关,显示了其临床潜力.
科学领域:
- 神经学 神经学
- 放射学 放射学是一门学科.
- 生物统计学 生物统计学
背景情况:
- 大脑健康评估往往忽略了先前存在的病理.
- 量化大脑储备对于预测神经学结果至关重要.
- 有效储备 (eR) 被提出作为一种新型的整合病理学的指标.
研究的目的:
- 开发和验证一种衡量大脑健康的方法,称为有效储备 (eR).
- 将先前存在的大脑病理纳入大脑储备的评估中.
- 评估ER和中风结局之间的关联.
主要方法:
- 用神经成像和修改的兰金分数 (mRS) 分析了两个缺血性中风队列 (GASROS和SALVO).
- 自动提取高强度白质 (WMHv),大脑和内体积,以计算大脑辅酶分数 (BPF).
- 使用年龄,WMHv和大脑体积或BPF对ER进行建模,并通过贝叶斯信息标准 (BIC) 进行模型比较.
主要成果:
- 在 eR 建模中,大脑体积优于BPF,与mRS 呈现更强的反向关联 (路径系数: -0.67 与 -0.48,p < 0.001).
- 在两个队列中,更高的ER四分位数始终与更好的中风结局 (较低的mRS) 相关.
- 与高 eR 组相比,低 eR 组的结果明显较差.
结论:
- 有效储备 (eR) 是量化大脑健康的一个有前途的指标,考虑到先前存在的病理.
- 较高的ER和改善的结果之间的强烈相关性突显了其临床实用性.
- 作为保护大脑健康指标,eR具有显著的翻译潜力.
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