基于深度学习的ECG细分用于划分各种心律失常症
Chankyu Joung1, Mijin Kim2, Taejin Paik1
1Department of Mathematical Sciences and Research Institute of Mathematics, Seoul National University, Gwanak-gu, Seoul, South Korea.
PloS one
|June 13, 2024
概括
这项研究使用U-Net模型增强了心电图 (ECG) 对心律失常的波形划分. 它提高了P,QRS和T波的准确性,特别是在心律不整的心律失常,如心跳动等.
科学领域:
- 生物医学工程 生物医学工程
- 心脏病学 心脏病学
- 人工智能在医学中的应用
背景情况:
- 精确的心电图 (ECG) 波形划分对于诊断心脏病至关重要.
- 深度学习细分模型显示出希望,但与心律失常作斗争.
- 多种心律失常对心电图划分质量的影响需要详细研究.
研究的目的:
- 研究心律失常对心电图划分精度的影响.
- 开发和评估在心律失常的情况下改善心电图划线性能的策略.
- 解决当前模型在处理代表性不足的失律症方面的局限性.
主要方法:
- 开发一个针对心电图划分的U-Net类细分模型,专注于各种心律失常.
- 实施一个后处理算法来消除噪音,并自动确定P,QRS和T波的边界.
- 在不同的数据集上进行培训和评估,包括LUDB和QTDB,在各种心律失常类型中进行具体评估.
主要成果:
- 拟议的模型实现了高性能,在LUDB数据集中,QRS和T波的F1得分超过99%,P波的F1得分超过97%.
- 观察到,在标准基准上表现良好的模型可能会在代表性不足的心律失常症 (如心跳动等) 上表现不佳.
- 确定了具体的挑战,并提出了改善复杂心律失常病例划界的解决方案.
结论:
- 开发的基于U-Net的模型与后处理有效地划分了ECG波形,即使有不同的心律失常.
- 绩效差异凸显了对代表性不足的节律失常症需要强大的模型的需求.
- 还提出了进一步的策略,以提高心电图分析在更广泛的心脏病状况的精度.
相关概念视频
01:28Electrocardiogram Fundamentals
561
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...
561
01:24ECG Interpretation of Rhythms
705
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....
705
01:29Electrocardiogram
2.3K
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
01:16ECG Interpretation of Arrhythmias I: Sinus Arrhythmias
209
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,...
209
01:28Disturbances in Heart Rhythm
933
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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01:28Mechanism of Cardiac Arrhythmias
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Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
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