相关实验视频

Updated: Jun 2, 2025

Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice
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使用短期心电图信号和机器学习进行心律失常的自动分类

Amar Bahadur Biswakarma1, Jagdeep Rahul2, Kurmendra Kurmendra3

  • 1Electronics and Communication Engineering, Rajiv Gandhi University, Doimukh, Itanagar, Itanagar, Arunachal Pradesh, 791112, INDIA.

Biomedical physics & engineering express
|January 17, 2025
PubMed
概括

这项研究引入了一种有效的方法来检测心律失常,使用信号处理和机器学习. 支持矢量机器分类器在从心电图数据中识别五种类型的心律异常时取得了高准确性.

关键词:
心脏节律失常 心脏节律失常这是一个ECGECGECGECGECG.L-BBBB L-BBBB L-BBBB L-BBBB L-BBBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB L-BBB B-BBB L-BBBB L-BBBB BBB L-BBBBB L-BBBBB L-BBBBB L-BBBBB L-BB机器学习是机器学习.这就是为什么PAC PAC PAC.在PVC中,PVC是PVC.R-BBBBB 这是一个R-BBBB

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ECG Interpretation of Arrhythmias I: Sinus Arrhythmias01:16

ECG Interpretation of Arrhythmias I: Sinus Arrhythmias

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,...
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Mechanism of Cardiac Arrhythmias01:28

Mechanism of Cardiac Arrhythmias

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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Electrocardiogram01:29

Electrocardiogram

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...
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Disturbances in Heart Rhythm01:28

Disturbances in Heart Rhythm

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...
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ECG Interpretation of Rhythms01:24

ECG Interpretation of Rhythms

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....
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Correlation between ECG and Cardiac Cycle01:25

Correlation between ECG and Cardiac Cycle

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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