对心律失常/心电图图案分类进行比较:卷积神经网络和随机森林
Serhii Reznichenko1, John Whitaker2, Zixuan Ni1
1Department of Computer Science and Software Engineering, Miami University, Oxford, Ohio, USA.
CJC open
|March 10, 2025
概括
深度学习 (DL) 和传统机器学习 (CML) 方法在使用更少的心电图 (ECG) 线索来分类心律不整时表现出类似的准确性. 对于最佳性能,DL模型需要的线索数量比CML要少.
科学领域:
- 心脏病学 心脏病学
- 人工智能的人工智能
- 机器学习 机器学习
背景情况:
- 深度学习 (DL) 和传统机器学习 (CML) 越来越多地用于心电图 (ECG) 模式分类.
- 有限的研究比较了DL和CML在减少心电图子集上的表现,以对心律失常进行分类.
- 对于这些方法,最优的ECG线索数量和选择仍然不清楚.
研究的目的:
- 为了比较DL (CNN) 和CML (RF) 模型在使用减少的心电图子集对心律不整进行分类时的准确性.
- 为DL和CML方法确定最佳的ECG子集.
- 评估减少对分类绩效的影响.
主要方法:
- 使用了PhysioNet心脏病挑战2020数据集.
- 开发了DL的CNN分类器和CML的随机森林分类器.
- 采用递归特征消除来确定两个方法的最佳ECG领先子集.
主要成果:
- 在CML方法需要大约2更多的线索比DL方法.
- 对CML确定了四个常见线索 (I,II,V5,V6),而对于DLL则没有一致的常见线索.
- 平均宏观F1得分为DL的0.761和CML的0.759.
结论:
- 最佳的ECG线索子集的分类准确度与使用所有12个线索对DL和CML的分类准确度相当.
- DL方法在较大的数据集上显示出略高的准确性,并且需要的线索比CML要少.
- 减少的集有效用于使用DL和CML方法对心律失常的分类.
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...
471
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...
3.1K
01:16ECG Interpretation of Arrhythmias I: Sinus Arrhythmias
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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,...
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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.
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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01:19Electrophysiology of Normal Cardiac Rhythm
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The normal cardiac rhythm is a synchronized electrical activity that facilitates the regular and coordinated contraction of the heart muscle. This process is essential for efficient blood circulation throughout the body. The fundamental elements involved in establishing and maintaining this rhythm include the unique electrical properties of cardiac muscle cells, the sinoatrial (SA) node's pacemaker function, the specialized conducting system, and the ionic mechanisms underlying each phase...
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01:24ECG Interpretation of Rhythms
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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....
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