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Related Concept Videos

Electrocardiogram01:29

Electrocardiogram

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 the T...
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

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 to...
Fetal Circulation01:14

Fetal Circulation

Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...

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Related Experiment Video

Updated: Jun 1, 2026

Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation
06:56

Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation

Published on: January 7, 2021

A Review of Fetal ECG Signal Processing; Issues and Promising Directions.

Reza Sameni1, Gari D Clifford

  • 1School of Electrical & Computer Engineering, Shiraz University, Shiraz, Iran.

The Open Pacing, Electrophysiology & Therapy Journal
|May 27, 2011
PubMed
Summary

Fetal electrocardiography (ECG) analysis lags behind adult ECG due to data limitations and low signal quality. This review explores techniques to advance fetal ECG signal processing and database creation for better understanding of fetal cardiac function.

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Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Signal Processing

Background:

  • Electrocardiography (ECG) has advanced significantly for adults, but fetal ECG analysis remains underdeveloped.
  • Challenges include limited gold-standard databases, low fetal ECG signal-to-noise ratio, and incomplete knowledge of fetal cardiac development.

Purpose of the Study:

  • To review recording and signal processing techniques for fetal ECG analysis developed over the past 40 years.
  • To discuss the advantages and disadvantages of these techniques.
  • To provide recommendations for future research in fetal ECG signal processing and database creation.

Main Methods:

  • Review of existing literature on fetal ECG recording and signal processing techniques.
  • Discussion of fetal cardiac development and the etiology of the fetal ECG.
  • Analysis of models for fetal/maternal ECG mixture.

Main Results:

  • Identified various promising recording and signal processing techniques for fetal ECG analysis.
  • Highlighted shortcomings and advantages of current methods.
  • Provided a foundation for future research directions.

Conclusions:

  • Despite challenges, advancements in signal processing and database creation are crucial for improving fetal ECG analysis.
  • Further research is needed to enhance understanding of fetal cardiac function and development through improved ECG analysis.