通过使用非接触性生命信号的特征融合模型来诊断心力衰竭和排放分数
Shen Feng1, Xianda Wu1, Huan Cen2
1School of Electronic Science and Engineering (School of Microelectronics), South China Normal University, Foshan, 528225, China.
Computer methods and programs in biomedicine
|September 4, 2025
概括
这项研究引入了一种新的混合深度学习框架,用于准确的家庭心力衰竭 (HF) 监测和左心室喷射率 (LVEF) 分类. 该方法显著提高了HF和LVEF状态的诊断准确性.
科学领域:
- 生物医学工程
- 心脏病学
- 医疗保健中的人工智能
背景情况:
- 胆心图 (BCG) 显示可能对心力衰竭进行远程监测.
- 目前对BCG的手动特征分析不足以描述左心室射出小部分 (LVEF) 的动态,特别是LVEF< 40%.
- 需要使用先进的方法来改善使用BCG的HF诊断和LVEF分类.
研究的目的:
- 开发和验证混合功能融合框架,整合BCG和呼吸信号的手动和深度学习功能.
- 提高心力衰竭诊断的准确性和左心室喷射分数的分类.
- 建立家庭HF和LVEF评估的非临床框架.
主要方法:
- 招募了83名参与者,将他们分为健康,HF (LVEF ≥ 40%) 和HF (LVEF < 40%) 组.
- 使用压电传感器收集非接触性生命体征, 隔离BCG和呼吸信号.
- 开发了一种混合模型,将手动功能与多尺度ResNet-BiLSTM网络的深度功能相结合,用于信号分析.
主要成果:
- 与传统手工方法相比,拟议的混合方法取得了更高的性能.
- 获得高分类准确度:两类 (健康与HF) 的分类为98. 20%,三类 (健康,HF LVEF ≥ 40%,HF LVEF < 40%) 的分类为98. 76%.
- 使用五倍交叉验证验证结果.
结论:
- 开发的以医疗为导向的框架可以有效地在家诊断HF和LVEF分类.
- 在非临床环境中促进快速初步查和辅助诊断.
- 展示了混合深度学习方法在远程心血管健康监测中的潜力.
更多相关视频
相关概念视频
01:30Heart Failure IV: Classification and Diagnostic Evaluation
31
Heart failure can be classified in various ways, with the most common classifications based on physical activity limitations, disease progression, severity, and treatment strategies.The Functional Classification of Heart Failure divides patients into four categories based on physical activity limitation due to symptom burden.Class I: Patients in this class have cardiac disease but no physical activity limitations. Ordinary activities like walking, climbing stairs, or routine tasks do not cause...
31
01:17Pathophysiology of Heart Failure
1.8K
Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
1.8K
01:17Imaging 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
01:29Heart Failure II: Pathophysiology
33
Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
33