使用霍恩斯菲尔德单位值测量皮质静脉暗化值,可以预测前循环急性缺血性中风的结果
Erling Wang1, Yueyan Bian1, Xiaoxu Yang1
1Department of Radiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.
European journal of radiology
|January 22, 2026
概括
在CT血管学上皮层静脉的阴暗化与急性缺血性中风中减少的低输液和核心缺血体积密切相关. 这种新型的成像标志物比传统的输液参数更有效地预测患者的结果.
科学领域:
- 神经辐射学神经辐射学
- 神经成像是一种神经成像.
- 脑卒中成像 脑卒中成像
背景情况:
- 在急性缺血性中风 (AIS) 中,计算机断层扫描血管造影 (CTA) 上的皮层静脉变暗通常是不对称的.
- 霍恩斯菲尔德单位 (HU) 值为评估皮质静脉模糊提供了更精确的方法.
研究的目的:
- 在AIS患者中,通过HU值测量CT perfusion参数和皮质静脉不透明度之间的相关性.
- 为了比较皮质静脉变暗的预测能力与CT输液参数对患者的结果.
主要方法:
- 在发病后24小时内审查AIS患者.
- 在CTA上使用HU测量了特定皮层静脉 (Labbé,sphenoparietal sinus,Trolard) 的模糊化.
- 计算了受影响方与抵押方 (rHU) 的 HU 的比率,并将这些比率 (CVOR) 加起来.
- 通过修改的兰金尺度 (mRS) 评估了90天的结果.
主要成果:
- CVOR与低输液体积 (r = -0.759) 呈现强烈的负相关性,与缺血核心体积 (r = -0.517) 呈现中度负相关性.
- 与低输液和缺血性核心体积相比,CVOR显示出对90天mRS的优异预测能力 (AUC为0.784对比0.711和0.693).
- 多变量分析确定CVOR是不良结果的独立预测因素 (OR 0.06).
结论:
- 用HU值量化的皮层静脉模糊化与AIS中的低 perfusion 容量有很强的负相关性.
- 皮层静脉变暗是急性缺血性中风患者临床结果的新,独立的预测因素.
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