对阿尔茨海默氏症认知评估预测的时间-多模式一致性对齐
Xikai Yang1, Xilin Dang1, Jinyue Cai1
1Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong, China.
Medical physics
|March 26, 2025
概括
这项研究介绍了MM-DURA,这是一个新的框架,通过整合MRI,临床和基因组数据来预测阿尔茨海默病的认知衰退. MM-DURA通过在不同细分度和时间点上对齐多式联运数据来提高预测准确度.
科学领域:
- 神经科学是一个神经科学.
- 医疗信息学 医疗信息学
- 生物统计学 生物统计学
背景情况:
- 阿尔茨海默病 (AD) 是一种流行的神经退行性疾病,严重影响认知和行为.
- 对认知衰退的早期和准确预测对于有效的AD干预至关重要.
- 现有的预后模型具有有限的预测能力,原因是对纵向多模式数据关联的探索不足.
研究的目的:
- 提出多模式融合与DUal-gRanularity Alignment (MM-DURA) 框架,用于同时建模纵向相关性和模式相互作用.
- 用时间MRI扫描,临床诊断和基因组数据预测认知评估得分.
- 为了提高阿尔茨海默病进展预测的准确性.
主要方法:
- 开发了一种粗到细的特征表示学习方法,用于主题和访问层次的模式一致性.
- 实施了层次化的多式联通融合 (HMF) 块,以利用跨式联通关系.
- 利用基于LSTM的回归头来预测基于融合多模式嵌入的认知能力.
主要成果:
- 在阿尔茨海默病神经成像计划 (ADNI) 数据集 (707名受试者) 上验证了MM-DURA.
- 在预测认知评估方面取得了卓越的表现 (例如,CDRSB的RMSE为1.099,ADAS-Cog的5.601).
- 超过了六种比较方法,包括最先进的多式模式时间模型,证实了时间与多式模式对齐的有效性.
结论:
- 为认知评估预测提出了一个新的框架,将多模式融合与双颗粒度对齐统一.
- 通过广泛的数值结果和可视化,MM-DURA与现有方法相比表现出更高的性能.
- 突出了认知评估预测的临床潜力,并发布了公众访问的代码.
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