定量形状不规则性和密度异质性预测脑内出血患者的血瘤扩张
Zeqiang Ji1,2,3, Yunyi Hao1,4, Bin Gao1,2
1Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Annals of clinical and translational neurology
|July 14, 2025
概括
血瘤的形状不规则性和密度异质性,通过表面规律性指数 (SRI) 和密度变化系数 (DCV) 测量,有效预测脑内出血患者的血瘤扩张. 这些新的指标比传统的成像标志提供了更好的预测.
科学领域:
- 神经学 神经学
- 放射学 放射学是一门学科.
- 医学成像分析 医学成像分析
背景情况:
- 脑内出血 (ICH) 是一种危急的情况,通常导致显著的发病率和死亡率.
- 血液瘤扩张 (HE) 是ICH患者不良结果的关键决定因素.
- 准确预测HE对于及时有效的临床干预至关重要.
研究的目的:
- 研究血液瘤形状不规则性 (表面规律性指数 - SRI) 和密度异质性 (密度变化系数 - DCV) 和血液瘤扩张 (HE) 在ICH患者的定量测量之间的关联.
- 与传统成像标志相比,评估结合SRI和DCV用于HE的模型的预测性能.
- 评估SRI和DCV的潜力,作为HE预测传统成像标记物的替代品.
主要方法:
- 一个队列研究设计,其中包括ICH患者的衍生和外部验证队列,在症状出现后24小时内呈现.
- 血液瘤扩张 (HE) 定义为从基线到随访CT扫描 (发病后24-48小时) 的>6毫升或>33%的增加.
- 开发了三种物流回归模型:模型1 (传统标志),模型2 (传统标志+SRI&DCV) 和模型3 (仅SRI&DCV).
- 使用接收器运行特征曲线下的面积 (AUROC) 和外部验证队列中的临床实用性评估来比较模型性能.
主要成果:
- 这三种模型都在导出和验证队列中对HE预测进行了良好的歧视.
- 在AUROC方面,2型 (包括SRI和DCV) 和3型 (仅SRI和DCV) 显著超过1型 (仅传统标志) (分别p <0.001和p = 0.006).
- 当SRI和DCV被添加到或作为传统临床指标和成像标志的替代品时,它们可以更好地预测HE.
结论:
- 血液瘤形状不规则性 (SRI) 和密度异质性 (DCV) 的定量测量是ICH中血液瘤扩张的有价值的预测指标.
- SRI和DCV可以显著提高超越传统成像标记者的HE预测.
- 这些新型的定量成像生物标志物在预测血瘤扩张方面显示出作为传统成像标志的有效替代品的承诺,可能改善ICH管理的临床决策.
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