Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Electrocardiogram

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...

Instrumentation Amplifier

Instrumentation Amplifier

An electrocardiography (ECG) machine is an essential piece of medical equipment used to monitor the electrical activity of the heart. It operates by detecting small electrical changes on the skin that result from the depolarization of the heart muscle during each heartbeat. However, these signals are in the microvolt range and can be easily overwhelmed by noise or interference.
To overcome this challenge, an ECG machine utilizes an instrumentation amplifier. This specialized amplifier is...

Pulse rhythm

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...

Holter Monitor: 24-Hour Monitoring

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 Fundamentals

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...

Dysrhythmias V: Evaluating Dysrhythmias

Dysrhythmias V: Evaluating Dysrhythmias

Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

7,8-Dihydroxyflavone alleviates ulcerative colitis by binding keap1 to activate an slc7a11-dependent inhibition of NF-κB p65 signaling in macrophages.

Journal of advanced research·2026

Same author

Design principles of practical industrial-scale layered oxide cathodes with air/water stability for sustainable sodium-ion batteries.

Nature communications·2025

Same author

Synergistic Dual-Pinning Engineering Enables Stable Mn-Based Layered Oxide Cathodes for High-Performance Sodium-Ion Batteries.

ACS nano·2025

Same author

Structure-preserving contrastive graph clustering with dual-channel label alignment.

Neural networks : the official journal of the International Neural Network Society·2025

Same author

Twist-Angle Controllable Transfer of 2D Materials via Water Vapor Intercalation.

Advanced materials (Deerfield Beach, Fla.)·2025

Same author

Leukocyte cell-derived chemotaxin 2 (LECT2) regulates liver ischemia-reperfusion injury.

Liver research·2025

Search research articles

Related Experiment Video

Updated: Jun 14, 2026

Development of a Low-cost Epimysial Electromyography Electrode: A Simplified Workflow for Fabrication and Testing

Development of a Low-cost Epimysial Electromyography Electrode: A Simplified Workflow for Fabrication and Testing

Published on: April 12, 2024

[Development of a portable dynamic state ECG based on DSP].

Li Song¹, Qing-jian Meng, Guang-yu Zhang

¹College of Radiology, Taishan Medical University, Taian. songlikjd@163.com

Zhongguo Yi Liao Qi Xie Za Zhi = Chinese Journal of Medical Instrumentation

|April 1, 2010

Summary

A portable electrocardiogram (ECG) system collects dynamic heart data. It uses a wavelet algorithm to accurately identify and locate key ECG waves, offering advantages like large memory and low power consumption.

More Related Videos

Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment

Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment

Published on: July 22, 2022

Related Experiment Videos

Last Updated: Jun 14, 2026

Development of a Low-cost Epimysial Electromyography Electrode: A Simplified Workflow for Fabrication and Testing

Development of a Low-cost Epimysial Electromyography Electrode: A Simplified Workflow for Fabrication and Testing

Published on: April 12, 2024

Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment

Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment

Published on: July 22, 2022

Area of Science:

Biomedical Engineering
Signal Processing
Medical Devices

Context:

Electrocardiogram (ECG) monitoring is crucial for diagnosing cardiac conditions.
Existing systems may face limitations in portability, power consumption, or data processing capabilities.
The need for advanced, portable ECG solutions is growing in clinical and remote healthcare settings.

Purpose:

To introduce a novel Portable Dynamic State Electrocardiogram Collecting System.
To detail the system's architecture, utilizing components like TMS302VC5402 and TLC320AD50C.
To present a wavelet-based algorithm for the identification and localization of ECG characteristic waves.

Summary:

The system employs a TMS302VC5402 digital signal processor and TLC320AD50C analog-to-digital converter for efficient ECG signal acquisition.
A unified wavelet-based algorithm is implemented for precise identification and localization of P, QRS, and T waves.
Key advantages include substantial memory capacity, low noise levels, high common-mode rejection ratio, reduced power consumption, and extended recording times.

Impact:

Enables continuous and remote ECG monitoring with enhanced accuracy.
Provides a cost-effective and portable solution for cardiac diagnostics.
Facilitates earlier detection and management of cardiovascular abnormalities through improved data collection and analysis.