机器学习算法的比较使用手动/自动功能对12导信号心电图的分类:对年龄在6至18岁之间的学生进行的一项大型队列研究
Ghasem Hajianfar1, Mohammadrafie Khorgami2, Yousef Rezaei1,3
1Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Niayesh Highway, Valiasr Ave., Tehran, 19969111541, Iran.
Cardiovascular engineering and technology
|October 17, 2023
概括
儿童手动心电图 (ECG) 测量显示,比自动化检测节律障碍的方法更准确. 机器学习分类器在区分异常心电图方面也显示出有希望的结果.
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) 对于识别心律障碍至关重要.
- 机器学习 (ML) 为自动化心电图分析提供了潜力.
研究的目的:
- 评估ML算法在区分正常儿科心电图和异常儿科心电图方面的准确性.
- 为了将手动ECG特征测量与使用MEANS算法自动测量进行比较.
主要方法:
- 分析了来自6-18岁学生的10,745个休息的12-Lead心电图.
- 手动和自动心电图特征被提取,规范化,并测试相关性.
- 在使用Boruta算法选择特征后,应用了8个ML分类器.
主要成果:
- 手动心电图测量在准确性方面超过了自动化 (MEANS) 测量.
- 随机森林和QDA分类器在手动数据上实现了高性能 (AUC高达0.93).
- 在自动化数据上,QDA和堆学习显示出强的结果 (AUC高达0.89).
结论:
- 手动心电图特征分析表明,与自动化MEANS算法相比,其性能优越.
- 某些ML分类器显示出有效检测儿童心电图异常的潜力.
- 需要进一步的研究来评估ML在社区ECG查中的有效性.
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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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01:25Correlation 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...
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01:30Dysrhythmias V: Evaluating Dysrhythmias
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01:25Instrumentation Amplifier
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