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相关概念视频

Electrocardiogram01:29

Electrocardiogram

2.2K
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...
2.2K
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

543
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...
543
ECG Interpretation of Rhythms01:24

ECG Interpretation of Rhythms

550
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....
550
Correlation between ECG and Cardiac Cycle01:25

Correlation between ECG and Cardiac Cycle

3.5K
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...
3.5K
Instrumentation Amplifier01:25

Instrumentation Amplifier

463
An electrocardiography (ECG) machine is an essential piece of medical equipment used to monitor the electrical activity of the heart. It operates by detecting small electrical changes on the skin that result from the depolarization of the heart muscle during each heartbeat. However, these signals are in the microvolt range and can be easily overwhelmed by noise or interference.
To overcome this challenge, an ECG machine utilizes an instrumentation amplifier. This specialized amplifier is...
463
Electrophysiology of Normal Cardiac Rhythm01:19

Electrophysiology of Normal Cardiac Rhythm

2.3K
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...
2.3K

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相关实验视频

Updated: Jun 12, 2025

Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice
06:07

Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice

Published on: May 23, 2021

3.6K

关于心电图 (ECG) 信号处理的十个快速技巧

Davide Chicco1,2, Angeliki-Ilektra Karaiskou3, Maarten De Vos3,4

  • 1Dipartimento di Informatica Sistemistica e Comunicazione, Università di Milano-Bicocca, Milan, Italy.

PeerJ. Computer science
|September 24, 2024
PubMed
概括
此摘要是机器生成的。

对心电图 (ECG) 数据的计算分析提供了宝贵的健康见解. 这项研究提供了十条准则,用于准确的心电图信号处理,以防止误导性结果和改善患者护理.

关键词:
心脏病学 心脏病学这是一个ECGECGECGECGECG.电心电图是指心电图.准则 准则 准则 准则医疗信号处理 医疗信号处理快速提示 快速提示信号处理 信号处理

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Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice
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Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice

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Optocardiography and Electrophysiology Studies of Ex Vivo Langendorff-perfused Hearts
09:52

Optocardiography and Electrophysiology Studies of Ex Vivo Langendorff-perfused Hearts

Published on: November 7, 2019

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相关实验视频

Last Updated: Jun 12, 2025

Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice
06:07

Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice

Published on: May 23, 2021

3.6K
Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice
04:45

Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice

Published on: May 5, 2022

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Optocardiography and Electrophysiology Studies of Ex Vivo Langendorff-perfused Hearts
09:52

Optocardiography and Electrophysiology Studies of Ex Vivo Langendorff-perfused Hearts

Published on: November 7, 2019

12.9K

科学领域:

  • 生物医学工程 生物医学工程
  • 医疗信息学 医疗信息学
  • 心脏病学 心脏病学

背景情况:

  • 电心电图 (ECG) 数据分析对于评估心脏健康至关重要.
  • 计算式心电图信号处理可以揭示微妙的心脏模式.
  • 电脑心电图分析中的潜在错误可能导致错误诊断和不良患者结果.

研究的目的:

  • 为计算式ECG数据分析提供十条实用指南.
  • 为了减轻常见的错误,并提高心电图信号处理的可靠性.
  • 增强来自心电图研究的医疗结果的可靠性.

主要方法:

  • 开发一套十个简单的建议,用于ECG数据分析.
  • 专注于研究人员和临床医生进行计算研究的实际应用.
  • 强调避免在心电图信号处理中过度乐观或误导性结果.

主要成果:

  • 一套明确的,可操作的指导方针,用于计算式心电图分析.
  • 防止ECG信号处理中的常见陷.
  • 通过强大的分析,提高诊断准确度和患者管理的潜力.

结论:

  • 遵守这些准则可以导致更可靠,更准确的ECG数据分析.
  • 实施这些建议有助于更好的医疗决策.
  • 这些指导方针旨在提高计算心脏病学研究的整体质量和影响.