相关实验视频

Updated: May 7, 2026

Combined Near-infrared Fluorescent Imaging and Micro-computed Tomography for Directly Visualizing Cerebral Thromboemboli

Combined Near-infrared Fluorescent Imaging and Micro-computed Tomography for Directly Visualizing Cerebral Thromboemboli

Published on: September 25, 2016

新型CT图像基础的脑内出血风险评分,用于急性缺血性中风患者进行血栓溶解

Shuangfang Fang^1,2,3, Hanhan Lei^1,2,3, Gareth Ambler⁴

¹Stroke Research Center, Department of Neurology Fujian Medical University Union Hospital Fuzhou China.

Journal of the American Heart Association

|February 8, 2025

概括

在中风治疗后预测症状性脑内出血是至关重要的. 一个使用CT扫描和临床数据的新模型准确地预测了接受血栓溶解的急性缺血性中风患者的出血风险.

科学领域:

神经学神经学
放射学放射学是一门学科.
医疗信息学医疗信息学

背景情况:

症状性脑内出血 (symptomatic intracerebral hemorrhage,简称sICH) 是急性缺血性中风 (AIS) 的静脉血栓溶解后的一种严重并发症.
由于其不可预测的性质,预测sICH风险仍然具有挑战性.
目前的预测方法可能无法完全整合成像和临床数据.

研究的目的:

开发和验证SICH的新型预测模型.
该模型包含临床变量和非对比头部CT成像特征.
改善针对AIS进行血栓溶解的患者的个性化风险评估.

主要方法:

用多变量逻辑回归分析来推导模型.
该模型是使用来自中国东南部的808名AIS患者队列开发的.
对来自中国中部的612名AIS患者的单独队列进行了外部验证.

主要成果:

预测模型确定了关键因素:大脑小血管疾病负担,CT上早期心脏病发作迹象,心房动,年龄,缩血压和NIHSS得分.
该模型显示出强烈的歧视 (C统计值0.80在导出中,0.82在验证中).
在导出 (P=0.816) 和验证 (P=0.866) 队列中都观察到良好的校准.

结论:

为sICH开发了一个内部和外部验证的预测模型.
这种模型可以帮助个性化预测脑内出血风险.
为接受静脉输血栓溶解的AIS患者提供了明智的治疗决策.

关键词:

急性缺血性中风是急性缺血性中风.静脉内血栓溶解是一种静脉内血栓溶解.这是一个名字编辑器 (Nomograph).预测模型是一个预测模型.有症状的内出血.

更多相关视频

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Published on: January 18, 2018

A Fibrin-Enriched and tPA-Sensitive Photothrombotic Stroke Model

A Fibrin-Enriched and tPA-Sensitive Photothrombotic Stroke Model

Published on: June 4, 2021

相关概念视频

Ischemic Stroke l: Introduction

Ischemic Stroke l: Introduction

Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.

Ischemic Stroke ll: Pathophysiology

Ischemic Stroke ll: Pathophysiology

An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...

Hemorrhagic Stroke l: Introduction

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...