一个卷积自编码器框架用于ECG信号分析
Ugo Lomoio1, Patrizia Vizza1, Raffaele Giancotti1
1Department of Surgical and Medical Sciences, University of Catanzaro, Catanzaro, Italy.
Heliyon
|February 3, 2025
概括
本研究介绍了一种卷积自编码器 (CAE) 框架,用于分析心电图 (ECG) 信号并识别异常. 该系统有效地检测心脏风险和病理,帮助医生进行诊断.
科学领域:
- 心脏病学 心脏病学
- 生物医学工程 生物医学工程
- 人工智能的人工智能
背景情况:
- 电心电图 (ECG) 信号对于评估心脏活动和检测异常至关重要.
- 对心电图信号的自动分析,特别是长期监测和医生支持,需要可靠的系统.
- 深度学习,特别是自动编码器 (AEs),提供了先进的方法来分析时间变化的信号,如ECG.
研究的目的:
- 提出基于卷积自编码器 (CAE) 的框架,用于ECG信号分析和异常识别.
- 开发一个系统,支持医生通过自动化心电图分析来诊断心脏风险和病理.
- 为了提高异常检测系统的解释性和稳定性.
主要方法:
- 使用卷积自编码器 (CAE),一个专门的信号数据深度神经网络,用于心电图分析.
- 培训CAE框架对合成心电图数据进行异常检测.
- 测试和验证基于12个导向ECG基准数据集和现实世界的场景的框架.
主要成果:
- 基于CAE的框架在识别ECG信号中的异常方面表现出很高的准确性.
- 在模拟测试组中达到97.82%的ROC AUC,在真实测试组中达到99.75%.
- 该系统的可解释性模块,基于重建错误,并通过专家注释验证,证明了其有效性.
结论:
- 拟议的基于CAE的框架提供了一个强大的工具,用于自动检测ECG信号中的异常.
- 该系统有效地支持医生在诊断心脏病的决策过程中.
- 解释性和预处理模块的整合提高了心电图分析系统的临床实用性和可靠性.
相关概念视频
01:25Correlation between ECG and Cardiac Cycle
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The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
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01:28Electrocardiogram Fundamentals
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Introduction
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
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01:25Instrumentation Amplifier
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To overcome this challenge, an ECG machine utilizes an instrumentation amplifier. This specialized amplifier is...
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01:29Electrocardiogram
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An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
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01:24Convolution: Math, Graphics, and Discrete Signals
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