在帕金森病中结步态:使用计算智能进行分类
Omid Mohamad Beigi1, Lígia Reis Nóbrega2, Sheridan Houghten1
1Computer Science Department, Brock University, St. Catharines, Ontario, Canada.
Bio Systems
|August 27, 2023
概括
帕金森病 (PD) 诊断可以通过步态分析数据来改进. 机器学习分类器有效地将PD患者与健康个体区分开来,并评估药物的有效性.
科学领域:
- 神经学 神经学
- 生物医学工程 生物医学工程
- 机器学习 机器学习
背景情况:
- 帕金森病 (PD) 是一种神经退行性疾病,其特点是多巴胺神经元的损失,导致运动和非运动症状.
- 将PD与其他疾病区分开来可能是具有挑战性的,因为症状重叠.
- 步行异常是帕金森病的关键诊断指标.
研究的目的:
- 开发和评估用于PD诊断的机器学习模型,使用步态数据.
- 根据步态参数,评估PD患者药物的有效性.
- 分析不同任务和患者状态 (ON/OFF药物) 的分类器性能.
主要方法:
- 编制了一个数据集,包括健康的个人和PD患者 (有或没有结步态),记录在开启和关闭药物状态期间.
- 从四个任务中收集数据:自愿停止,定时并继续,简单的运动任务和双动力/认知任务.
- 应用了七种不同的分类器,以区分PD患者与对照患者,并评估药物效应.
主要成果:
- 机器学习模型被应用来区分PD患者和健康个体,无论是整体还是特定任务.
- 用收集的步态数据来评估药物的有效性.
- 多层感知器和决策树分类器在评估的问题中表现最一致.
结论:
- 步态分析数据,当用机器学习处理时,显示了PD诊断的希望.
- 机器学习模型可以有效地区分PD患者,并评估治疗反应.
- 特定的分类器,如多层感知器和决策树,为PD相关的步态分析提供可靠的结果.
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