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Related Concept Videos

Pulse rhythm01:30

Pulse rhythm

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

Holter Monitor: 24-Hour Monitoring

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...
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...

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Updated: May 9, 2026

Recording EEG in Freely Moving Neonatal Rats Using a Novel Method
08:03

Recording EEG in Freely Moving Neonatal Rats Using a Novel Method

Published on: May 29, 2017

[Continuous ECG recording for freely moving patients].

Bo Shi1, Shengyang Liu, Jianfang Chen

  • 1Department of Medical Imaging, Bengbu Medical College, Bengbu 233030, China. shibohome@qq.com

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi = Journal of Biomedical Engineering = Shengwu Yixue Gongchengxue Zazhi
|July 18, 2013
PubMed
Summary

A new miniature device enables continuous, long-term cardiac monitoring for ambulatory patients. This portable electrocardiogram (ECG) recorder ensures reliable data capture during daily activities, aiding chronic cardiac condition management.

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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

Published on: December 28, 2012

Area of Science:

  • Biomedical Engineering
  • Medical Devices
  • Digital Health

Context:

  • Aging population in China experiencing increased chronic cardiac conditions.
  • Need for continuous, long-term cardiac monitoring for mobile patients.
  • Limitations of current cardiac monitoring solutions for daily life.

Purpose:

  • To propose a novel design for a miniature, continuous electrocardiogram (ECG) recorder.
  • To develop a device suitable for freely moving patients at home and work.
  • To enable dynamic cardiac monitoring outside of clinical settings.

Summary:

  • A new miniature ECG recorder utilizes digital technologies including a low gain amplifier, high-resolution analog-to-digital converter, and real-time digital filter.
  • The device offers >100dB input signal dynamic range (ISDR), >100dB common-mode rejection ratio (CMRR), and <5 microV (RMS) internal noise.
  • It operates continuously for over 24 hours on AAA batteries, stores data on a card, and successfully captured P-QRS-T waveforms during various activities.

Impact:

  • Facilitates effective long-term cardiac monitoring for ambulatory patients with chronic conditions.
  • Provides a portable and reliable solution for continuous ECG recording in daily environments.
  • Supports improved analysis and management of cardiac health for individuals on the move.