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相关概念视频

Electrocardiogram01:29

Electrocardiogram

3.3K
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...
3.3K
Pulse rhythm01:30

Pulse rhythm

937
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...
937
Cardiopulmonary Resuscitation III: AED Use01:23

Cardiopulmonary Resuscitation III: AED Use

77
Introduction to AEDAn Automated External Defibrillator (AED) is a portable medical device that analyzes the heart's rhythm and, if necessary, delivers an electrical shock to help the heart re-establish an effective rhythm during sudden cardiac arrest (SCA). SCA occurs when the heart suddenly and unexpectedly stops beating, leading to a loss of blood flow to the brain and other vital organs. In such emergencies, time is of the essence, and using an AED, combined with Cardiopulmonary...
77
ECG Interpretation of Rhythms01:24

ECG Interpretation of Rhythms

4.1K
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....
4.1K
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

881
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...
881
Holter Monitor: 24-Hour Monitoring01:23

Holter Monitor: 24-Hour Monitoring

306
Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
306

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相关实验视频

Updated: Sep 18, 2025

Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice
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Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice

Published on: May 23, 2021

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一个人工智能QRS检测算法用于可穿戴心电图设备.

Zihao Li1, Wenliang Zhu2, Yiheng Xu3

  • 1School of Electronics and Information Technology, Soochow University, Suzhou 215006, China.

Micromachines
|June 27, 2025
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种自动化的多QRS探测器,用于AI驱动的心电图诊断. 这种新方法提高了精度,并降低了计算负载,以实现更高效的心电图分析.

关键词:
在 QRS 检测器上.多个线索导致多个线索.缩放操作 缩放操作这是一个普遍的,普遍的,普遍的.

更多相关视频

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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Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function
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Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function

Published on: December 11, 2019

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相关实验视频

Last Updated: Sep 18, 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

3.9K
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

2.6K
Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function
05:03

Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function

Published on: December 11, 2019

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科学领域:

  • 心脏病学 心脏病学
  • 人工智能的人工智能
  • 信号处理 信号处理

背景情况:

  • 精确的QRS复合物定位对于人工智能驱动的心电图 (ECG) 诊断至关重要.
  • 现有的多QRS检测策略通常需要人工设计,从而限制了效率.
  • 需要自动化多QRS探测器,可以有效地融合信号.

研究的目的:

  • 开发一种能够融合多导电心电图信号的自动化QRS探测器.
  • 为了最大限度地减少手动干预的多导线QRS检测策略.
  • 提高基于AI的ECG诊断系统的精度和效率.

主要方法:

  • 提出了一种新的QRS探测器,由蒸模块 (LDM) 和QRS检测模块组成.
  • 该LDM自动将多导线ECG信号蒸成单导线表示,减轻噪声导线.
  • 一个基于U-Net的QRS检测模块从蒸信号中辨别出QRS复合体.

主要成果:

  • 拟议的方法实现了高性能与低参数数量 (5216).
  • 在患者间模式中获得了99.83% (MITBIHA) 和99.77% (INCART) 的优异F1得分.
  • 强大的跨数据库性能得到维持,F1得分为99.22% (INCART) 和99.09% (MITBIHA).

结论:

  • 开发的方法为通用多QRS检测提供了一种新的方法.
  • 优点包括减少计算参数,提高精度和改进的兼容性.
  • 这种自动化方法消除了在不同的配置中重复部署QRS检测功能的需要,简化了心电图诊断系统.