多模式心脏成像和风险分层的可解释半联合学习:保护隐私的框架
XianFang Liu1, ShunLei Li2, Qin Zhu3
1Heart Center, Department of Cardiology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China.
Journal of imaging informatics in medicine
|September 5, 2025
概括
一个新的半联合学习系统PerFed-Cardio使用多模式患者数据提供实时心血管风险分层. 这种保护隐私的方法提高了可扩展的心脏护理模型的准确性和可解释性.
科学领域:
- 心血管疾病的预测
- 医疗保健中的机器学习
- 医疗数据的联合学习
背景情况:
- 越来越多来自医院和可穿戴设备的心脏病患者数据需要先进的预测模型.
- 现有的模型往往缺乏个性化,可解释性和强大的隐私保护.
- 需要实时,适应性风险分层系统,根据个体患者的数据量身定制.
研究的目的:
- 介绍PerFed-Cardio,一个轻量级,可解释的半联合学习 (Semi-FL) 系统,用于实时心血管风险分层.
- 使用多模式数据 (心脏成像,生理信号,EHR) 提高预测准确度.
- 开发一个能够适应异质数据源的,注重隐私的系统.
主要方法:
- 采用高容量节点 (医院) 和边缘设备 (可穿戴设备) 的个性化Semi-FL方法.
- 采用轻量级卷积神经网络,专注于图像分析和基于注意力的融合,用于多模式数据集成.
- 综合局部可解释的模型不可知解释 (LIME) 和Grad-CAM用于模型透明度.
主要成果:
- 在真实多式联络数据集上实现了0.972的AUC-ROC与130毫秒的低推断延迟.
- 通过定制模型校准和有针对性的培训, 减少了28%的通信负载.
- 即使在杂的数据条件下,F1得分也保持在92%以上.
结论:
- PerFed-Cardio展示了一个可扩展,隐私意识和可解释的心脏风险评估的解决方案.
- 该系统的自适应性有效地处理多种模式的患者数据.
- 在实时临床决策支持系统中强调个性化Semi-FL的潜力.
相关概念视频
Imaging Studies for Cardiovascular System I:Echocardiography
476
Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...
476
Imaging Studies for Cardiovascular System IV: CMRI
135
Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
135
Imaging Studies for Cardiovascular System V: CT
66
Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
66


