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Related Concept Videos

Electrocardiogram01:29

Electrocardiogram

9.9K
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...
9.9K
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

21.3K
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....
21.3K
Holter Monitor: 24-Hour Monitoring01:23

Holter Monitor: 24-Hour Monitoring

5.7K
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...
5.7K
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

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Related Experiment Video

Updated: May 6, 2026

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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Raw data extraction from electrocardiograms with Portable Document Format.

Nuria Ortigosa1, Vicente M Giménez

  • 1I.U. Matemática Pura y aplicada, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain.

Computer Methods and Programs in Biomedicine
|November 12, 2013
PubMed
Summary

This study introduces an application to extract raw numerical data from electrocardiogram (ECG) files saved as PDF documents. This facilitates easier access to ECG data for further analysis and research.

Keywords:
ECG storage formatsPortable Document FormatScalable Vector Graphics

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Area of Science:

  • Biomedical Engineering
  • Medical Informatics

Background:

  • Standardization efforts for electrocardiogram (ECG) storage formats have been ongoing for two decades.
  • Existing ECG data is often stored in Adobe PDF files, hindering raw data access for analysis.
  • There is a need for methods to retrieve original ECG data from PDF documents.

Purpose of the Study:

  • To present an application for extracting plain numerical data from ECG files in PDF format.
  • To enable easier access to previously acquired ECG data for subsequent studies and signal analysis.

Main Methods:

  • Development of a software application to process ECG PDF files.
  • Implementation of data extraction algorithms to obtain numerical values.
  • Functionality for exporting extracted data into common, accessible file formats.

Main Results:

  • Successful extraction of plain numerical data from ECG PDF files.
  • Demonstrated ability to convert extracted data into widely compatible formats.
  • The application addresses the challenge of accessing raw ECG data from PDF documents.

Conclusions:

  • The developed application provides a solution for accessing raw ECG data embedded in PDF files.
  • This facilitates further research and signal analysis by making data readily available.
  • The tool enhances the utility of previously archived ECG data.