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使用可解释的深度学习放射学模型来诊断和预测早期AD疾病谱的进展:一个初步的FDG PET研究
Jiehui Jiang1, Chenyang Li2, Jiaying Lu3
1Institute of Biomedical Engineering, School of Life Sciences, Shanghai University, Shanghai, China. jiangjiehui@shu.edu.cn.
一个可解释的深度学习放射学 (IDLR) 模型在诊断阿尔茨海默病 (AD) 谱和预测轻度认知障碍 (MCI) 进展方面显示出更高的准确性. 这种新的方法提高了临床应用的深度学习的解释性.
科学领域:
- 神经成像是一种神经成像.
- 人工智能的人工智能
- 无线电学 (Radiomics) 是一种放射学.
背景情况:
- 深度学习 (DL) 模型为诊断阿尔茨海默病 (AD) 提供了潜力,但往往缺乏可解释性.
- 现有的放射性和DL模型在准确诊断AD频谱和预测疾病进展方面存在局限性.
研究的目的:
- 开发和评估一个可解释的深度学习放射学 (IDLR) 模型,使用[18F]FDG PET图像.
- 诊断AD的临床谱和预测从轻度认知障碍 (MCI) 到AD的进展.
主要方法:
- 一项多中心研究包括1962名来自高加索 (ADNI) 和亚洲群体的受试者.
- IDLR模型涉及特征提取,选择和分类/预测,并与放射性和DL模型进行比较.
- 考克斯模型和相关性分析评估了IDLR特征的预测能力和临床诊断价值.
主要成果:
- IDLR模型在分类认知状态和MCI轨迹方面达到76.51%的准确性,优于放射性 (69.13%) 和DL (73.89%) 模型.
- IDLR模型的特征是MCI向AD进展的显著预测因素 (HR=1.465,p<0.001).
- 三个关键的IDLR特征与认知得分有显著的相关性,并且在认知阶段有所不同.
结论:
- 根据IDLR模型,使用[18F]FDG PET图像来诊断AD临床谱的准确度提高.
- 与传统的DL模型相比,放射学监督的DL特征提高了解释性和分类准确性.
- IDLR模型对于在AD诊断和进展预测中推进DL应用具有临床意义.
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