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相关概念视频

Pulse rhythm01:30

Pulse rhythm

1.7K
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
1.7K
Instrumentation Amplifier01:25

Instrumentation Amplifier

1.3K
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...
1.3K
Electrocardiogram01:29

Electrocardiogram

10.0K
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...
10.0K
Correlation between ECG and Cardiac Cycle01:25

Correlation between ECG and Cardiac Cycle

13.7K
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...
13.7K
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

2.2K
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...
2.2K
ECG Interpretation of Rhythms01:24

ECG Interpretation of Rhythms

21.4K
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....
21.4K

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相关实验视频

Updated: May 6, 2026

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

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DR.BEAT:基于规则的算法,用于没有ECG参考的SCG分析.

Marie Cathrine Pickert1, Tabea Tharra1, Ulf Kulau2

  • 1Peter L. Reichertz Institute for Medical Informatics, Germany.

Studies in health technology and informatics
|August 23, 2024
PubMed
概括
此摘要是机器生成的。

这项研究开发了一种可穿戴传感器,用于使用胆心图 (BCG) 进行心脏监测. 该系统准确地检测心跳,即使在身体压力,帮助健康评估.

关键词:
弹性心脏成像 (Ballistocardiography) 是一种心脏成像技术.心跳检测器可以检测心跳.这是一个基于规则的规则.地震心脏学图 (Seismocardiography) 是一种地震心脏学图.

更多相关视频

Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis
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Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis

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Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
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Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System

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相关实验视频

Last Updated: May 6, 2026

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

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Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis
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Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis

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Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
10:17

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System

Published on: April 11, 2025

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科学领域:

  • 生物医学工程 生物医学工程
  • 心血管技术的心血管技术
  • 可穿戴式传感器 穿戴式传感器

背景情况:

  • 心脏健康监测对于早期发现疾病至关重要.
  • 可穿戴式传感器为持续的生理数据收集提供了一种非侵入性的方法.
  • 弹性心电图 (BCG) 和地震心电图 (SCG) 提供了对心脏功能的洞察.

研究的目的:

  • 开发基于加速度计的可穿戴传感器系统,用于测量BCG信号.
  • 创建一个基于规则的算法,用于心跳检测和健康参数导出.
  • 评估心脏健康监测开发的系统和算法的性能.

主要方法:

  • 开发基于加速度计的可穿戴传感器系统.
  • 实施基于规则的算法,通过BCG/SCG信号检测心跳.
  • 使用12名健康成年人在休息和体力压力期间的数据进行初始绩效评估.

主要成果:

  • 该系统在所有测量中实现了87.6%的平均心跳检测率.
  • 在休息状态下观察到高检测率 (97.6%),在体力压力期间观察到较低的检测率 (71.9%).
  • 开发的算法允许独立于外部参考系统的健康参数导出.

结论:

  • 该 DR.BEAT 项目展示了一个有希望的可穿戴传感器系统用于心脏健康监测.
  • 基于规则的心跳检测算法显示了可靠的心脏评估的潜力.
  • 需要进一步验证,特别是在各种物理压力条件下.