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Related Concept Videos

Electrocardiogram01:29

Electrocardiogram

8.1K
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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Pulse rhythm01:30

Pulse rhythm

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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...
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ECG Interpretation of Rhythms01:24

ECG Interpretation of Rhythms

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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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Electrocardiogram Fundamentals01:28

Electrocardiogram 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...
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Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice
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A piecewise geometric analysis method for real-time ambulatory ECG detection.

H-Y Zhou1,2, J Li1,2, D-C Zuo2

  • 1School of Electrical and Information Engineering, HuBei University of Automotive Technology, Shiyan, HuBei, China.

Technology and Health Care : Official Journal of the European Society for Engineering and Medicine
|September 28, 2015
PubMed
Summary

A new Ambulatory Electrocardiograph Detection (AED) algorithm enables real-time cardiac arrhythmia detection for Ubiquitous Cardiac Care (UCC) systems. This efficient algorithm offers high accuracy and low resource usage, crucial for out-of-hospital applications.

Keywords:
QRS complex detectionUbiquitous cardiac careambulatory ECGpiecewise geometric analysis

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Area of Science:

  • Biomedical Engineering
  • Healthcare Technology
  • Signal Processing

Background:

  • Ubiquitous Cardiac Care (UCC) systems require real-time arrhythmia detection and minimal resource usage.
  • Out-of-hospital applications face challenges with signal quality and system constraints.

Purpose of the Study:

  • To implement a dedicated real-time Ambulatory Electrocardiograph Detection (AED) algorithm for UCC systems.
  • To address the need for efficient and accurate cardiac event monitoring in ambulatory settings.

Main Methods:

  • Piecewise geometric analysis for real-time QRS complex detection.
  • Algorithm comprises data preparation, R-wave vertex discovery, and QRS complex recognition modules.
  • Applied to an on-line UCC system with over 30 patients.

Main Results:

  • Evaluated on the MIT-BIH cardiac arrhythmia database and clinical testing.
  • Achieved an average sensitivity of 99.37% and specificity of 99.72%.

Conclusions:

  • The AED algorithm demonstrates minimal beat detection latency and low computational demands.
  • Meets the stringent requirements for ubiquitous cardiac care applications.