根据非运动症状和结构神经成像,根据多巴胺缺乏和没有多巴胺缺乏的帕金森病的分类
Lucas Ronat1,2, Pierre Rainville3,4, Oury Monchi3,5
1Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, M7820, 4545 ch. Queen Mary, H3W 1W6, Montréal, QC, Canada. lucas.ronat@umontreal.ca.
概括
非运动症状 (NMS) 有效地区分了帕金森病 (PD) 与没有证据的多巴胺缺乏症 (SWEDD) 和健康对照的扫描. 神经成像本身并没有改善这些分类,这强调了NMS的诊断重要性.
科学领域:
- 神经学 神经学
- 神经成像是一种神经成像.
- 诊断生物标志物 诊断生物标志物
背景情况:
- 非运动性症状 (NMS),包括嗅觉缺陷和神经精神问题,与帕金森病 (PD) 和明显的脑部变化有关.
- 患有帕金森病类似症状但正常多巴胺转运器扫描 (SWEDD) 患者的NMS仍未得到充分研究.
研究的目的:
- 为了比较区分PD,SWEDD和健康对照 (HC) 的分类模型.
- 在这些分类中评估NMS和神经结构MRI数据的实用性.
主要方法:
- 利用了来自帕金森病进展标记计划 (PPMI) 数据集的683名参与者的数据 (382名PD,48名SWEDD,170名HC).
- 收集了嗅觉,神经精神和睡眠评估,以及用于提取大脑体积的3T核磁共振扫描.
- 使用后勤回归与5倍交叉验证来构建分类模型.
主要成果:
- NMS对 PD 与 SWEDD,PD 与 HC 和 SWEDD 与 HC 的分类做出了重大贡献,无论是独立的还是与MRI数据相结合.
- 仅基于MRI体积数据的分类模型与偶然没有显著差异.
- 与单独使用NMS相比,结合NMS和MRI数据并没有提高分类准确性.
结论:
- 在区分PD,SWEDD和HC时,NMS至关重要.
- 标准的神经成像体积数据似乎不足以提高这些群体的诊断分类准确性.
- 未来的研究可以探索其他成像模式,如功能连接.
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