在患者间的环境中使用富里埃分解和机器学习来检测心电图失常
Binish Fatimah1, Amit Singhal2, Pushpendra Singh3
1MaxEye Technologies Private Limited, Bengaluru, India.
Medical engineering & physics
|February 28, 2024
概括
这项研究改进了人工智能 (AI) 用于用患者间方法检测心电图 (ECG) 失律. 这种新方法提高了超腹外心跳 (SVEB) 检测精度,达到98.03%的整体精度.
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) 节拍分类对于监测心脏异常至关重要.
- 现有的AI算法用于心律失常检测面临的挑战是未见的数据和超腹外心跳 (SVEB) 检测精度.
- 对于强大的AI模型性能评估,需要一种患者间验证方法.
研究的目的:
- 开发基于AI的ECG节拍分类方法,解决现有算法的局限性.
- 为了提高心律失常监测中超腹外心跳 (SVEB) 检测的准确性.
- 通过使用患者间范式来验证拟议的AI模型,以提高通用性.
主要方法:
- 使用富里埃分解法 (FDM) 对心电图信号进行多尺度分析.
- 从通过FDM获得的窄频信号组件中提取时间域和统计特征.
- 使用克鲁斯卡尔-瓦利斯测试和最小冗余最大相关性 (mRMR) 进行特征选择和减少冗余.
- 应用了一个支持向量机 (SVM) 分类器,用于节拍分类的线性内核.
主要成果:
- 拟议的方法在SVEB检测方面获得了89.35%的F1得分,超过了现有的算法.
- 在MIT-BIH心律失常数据集上获得了98.03%的整体准确率和91.84%的马修相关系数 (MCC).
- 患者间验证范式证明了该模型在未见数据上的有效性.
结论:
- 开发的AI方法有效地对心电图节拍进行分类,并以更高的准确度检测心律失常,特别是SVEB.
- 患者间验证策略确保更可靠地评估AI模型在临床环境中的性能.
- 这项研究为使用心电图数据监测心脏异常提供了强大而准确的AI解决方案.
相关概念视频
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...
797
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...
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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...
594
01:24ECG Interpretation of Rhythms
865
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....
865
01:16ECG Interpretation of Arrhythmias I: Sinus Arrhythmias
213
Arrhythmias are disturbances in the heart's rhythm that lead to abnormal heartbeats. These irregularities can originate from different parts of the heart and are classified based on their origin and nature.
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
213
01:28Disturbances in Heart Rhythm
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Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow...
Arrhythmias are categorized by their speed, rhythm, and origin. A slow...
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