认知中风:在超急性中风单元上的自动认知和情绪评估
Simon M Bell1,2,3,4, Bahman Mirheidari5, Kirsty A C Harkness2,3,4
1Sheffield Institute for Translational Neuroscience, School of Medicine and Population Health, University of Sheffield, 385a Glossop Rd, Broomhall, Sheffield S10 2HQ, UK.
Healthcare (Basel, Switzerland)
|November 27, 2025
概括
一个自动化工具CognoStroke使用人工智能驱动的语音分析评估中风幸存者的认知和情绪障碍. 它显示出在超急性中风单位有效查的前景,尽管存在一些与患者有关的挑战.
科学领域:
- 神经学 神经学
- 人工智能的人工智能
- 精神病学是一个精神病学.
背景情况:
- 在中风幸存者中,认知和情绪障碍很普遍,对结果和生活质量产生负面影响.
- 目前的评估方法对于超急性中风单位 (HASU) 是耗时且不切实际的.
- 需要自动化评估工具,以便在HASU设置中进行有效和及时的评估.
研究的目的:
- 在HASU中引入和评估CognoStroke,这是一个用于评估中风幸存者的认知和情绪障碍的自动化系统.
- 确定大型语言模型在分析语音情绪和认知状态分类方面的有效性.
- 确定在HASU中采用自动化评估工具的障碍.
主要方法:
- 通过大型语言模型 (GPT2,BART,RoBERTa),CognoStroke利用对话式AI和语音分析来分类认知 (MoCA) 和情绪 (GAD-7,PHQ-9) 值.
- 使用宏观F1分数 (MFSs) 来测量性能.
- 收集了患者报告的使用CognoStroke的障碍.
主要成果:
- 使用优化的提示组合,CognoStroke在MoCA值方面实现了0.783的最佳MFS.
- 获得PHQ-9的MFS为0.686,GAD-7的MFS为0.617,使用更少的提示得到了更好的得分.
- 在151名中风幸存者中,有75人完成了评估,其中包括计算机访问和技术焦虑等共同障碍.
结论:
- CognoStroke展示了基于认知和情绪状态对中风幸存者进行分类的潜力,有助于早期干预.
- 优化对话提示可以提高自动评估的准确性.
- 解决患者电脑访问和技术焦虑等挑战对于广泛实施至关重要.
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01:15Ischemic Stroke l: Introduction
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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.
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01:26Transient Ischemic Attack l: Introduction
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A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...
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