从使用复杂波纹子频段特征的12导电图检测心脏异常
Sourav Mondal1, Prakash Choudhary2, Priyanka Rathee1
1Department of Computer Science and Engineering, National Institute of Technology Hamirpur, Hamirpur, Himachal Pradesh-177005, India.
Biomedical physics & engineering express
|February 5, 2024
概括
这项研究优化了使用Daubechies波列家族和ECG数据上的机器学习来检测心脏异常. 该db5波段和神经网络实现了98.6%的准确性,有效地区分正常与异常的心律.
科学领域:
- 生物医学工程 生物医学工程
- 信号处理 信号处理
- 机器学习 机器学习
背景情况:
- 检测心脏异常对于诊断各种心脏疾病至关重要.
- 电心电图 (ECG) 信号为评估心脏健康提供了至关重要的信息.
- 现有的心电图分析方法在准确识别微妙异常时面临挑战.
研究的目的:
- 优化心脏异常检测,通过识别最有效的多贝希斯波段家族来进行心电图信号分析.
- 使用机器学习算法对心电图数据进行正常和异常心脏状态的区分.
- 通过使用先进的信号处理技术,提高心脏不规则识别的精度.
主要方法:
- 一种新的方法,将离散波形变换 (DWT) 与主要组件分析 (PCA) 结合起来,用于从心电图信号中提取特征和减小尺寸.
- 使用各种多贝希波列家族 (db2-db6) 来进行信号分解.
- 采用机器学习分类器,包括多层感知器 (MLP) 神经网络,集体子空间K-最近邻居 (KNN) 和集体袋状树进行分类.
主要成果:
- 杜贝希斯波段家族db5在表示心电图信号方面表现出卓越的性能.
- 拟议的方法有效地区分了Physionet Apnea ECG数据库中的正常和异常ECG信号.
- 对于健康信号,MLP神经网络实现了100%的准确性,对于异常信号达到97.8%,整体准确率为98.6%.
结论:
- 选择一个合适的Daubechies波段家族对于准确的ECG分析至关重要.
- 机器学习技术,特别是神经网络,与波形变换相结合,显著改善心脏异常检测.
- 开发的方法显示了临床应用在诊断心脏不规则的高潜力.
相关概念视频
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...
600
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.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
2.3K
01:24ECG Interpretation of Rhythms
905
An electrocardiogram (ECG)graphically represents the heart's electrical activity on ECG paper or a monitor.
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
905
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.
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
5.4K
01:30Pulse rhythm
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Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
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01:17Imaging Studies for Cardiovascular System I:Echocardiography
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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,...
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