在帕金森病中轻度认知障碍的基于机器学习的分层:多中心横截面分析
Yanfang Liu1,2, Meiling Chen1,3, Peng Chen1
1Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, Guangxi, 530021, China.
BMC medical informatics and decision making
|October 15, 2025
概括
一个新的机器学习工具使用常规临床数据准确估计帕金森病轻度认知障碍 (PD-MCI) 的概率. 这有助于优先考虑患者进行进一步评估,改善PD认知衰退的早期检测和管理.
科学领域:
- 神经学 神经学
- 人工智能的人工智能
- 生物统计学 生物统计学
背景情况:
- 认知障碍是帕金森病 (PD) 的重要非运动症状,影响生活质量和增加死亡率.
- 早期识别PD中轻度认知障碍 (PD-MCI) 对于及时干预和管理至关重要.
- 当前的诊断途径可能无法有效地识别所有患有PD-MCI的个体.
研究的目的:
- 开发和外部验证用于估计PD-MCI的概率的机器学习模型.
- 为了利用常规收集的临床变量进行PD-MCI风险分层.
- 为了使临床医生能够优先考虑患者,特别是那些MoCA得分正常的患者,进行进一步的神经心理评估.
主要方法:
- 来自帕金森病进展标记计划 (PPMI) 的799名参与者的分析,用于培训和内部验证.
- 外部验证使用连续70名患者的队列.
- 使用LASSO,SMOTE检测类不平衡的预测因素的选,并对五种机器学习模型 (LR,SVM,XGBoost,NN,LightGBM) 的评估.
- 模型性能通过AUC,校准和DCA进行评估;可通过名图和SHAP进行解释.
主要成果:
- 后勤回归 (LR) 模型表现出强大的性能,AUC为0.789 (训练),0.778 (内部) 和0.772 (外部).
- 确定的主要预测因素包括教育,发病年龄,运动严重程度,性别,抑郁负担 (GDS) 和低血压 (UPSIT).
- 该工具以名录和网络计算器的形式实现,支持PD-MCI的灵敏度导向分类.
结论:
- 使用常规临床数据开发了一种基于概率的PD-MCI风险分层工具.
- 该工具有助于识别需要进一步评估的个人,特别是那些MoCA分数正常的人.
- 这种风险分层工具补充了诊断评估,并促进了更密切的患者随访.
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