预测缺血性中风后出血转变的关键CT标志物:中国的一项前性队列研究
Chenchen Wei1,2, Qian Wu1, Junfeng Liu1
1Department of Neurology, West China Hospital, Sichuan University, Chengdu, China.
BMJ open
|November 24, 2023
概括
早期CT扫描标志物如MCA区域低密度,中线转移和HMCAS可以预测缺血性中风患者的出血转变 (HT). 识别这些关键的成像因素有助于早期风险评估和治疗指导.
科学领域:
- 神经学 神经学
- 放射学 放射学是一门学科.
- 医疗成像医学成像
背景情况:
- 出血转化 (HT) 是缺血性中风的并发症.
- 在CT扫描上对HT的预测性成像标记并不成熟.
- 早期识别HT风险对于患者管理至关重要.
研究的目的:
- 调查多模式CT成像因子对HT的预测能力.
- 确定关键的CT标志物,以便在缺血性中风中早期和准确地预测HT.
主要方法:
- 在第三级医院进行前性队列研究.
- 包括在24小时内入院的763名缺血性中风患者.
- 分析了多式联动CT检测结果,以确定HT的相关性.
主要成果:
- 七个成像因素独立与HT风险相关.
- 早期低密度>1/3MCA区域,中线转移和HMCAS是关键预测因素.
- 这三种标记物的组合显示出良好的预测性能 (AUC 0.80).
结论:
- 多模式CT可以识别早期HT预测的关键标志物.
- 早期的低密度>1/3MCA区域,中线转移和HMCAS是至关重要的.
- 这些标志物有助于识别高出血风险并指导治疗.
相关概念视频
Hemorrhagic Stroke l: Introduction
A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
Hemorrhagic Stroke ll: Pathophysiology
A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...


