Related Experiment Video
Updated: Jul 16, 2025

Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis
Published on: April 26, 2024
BRAVEHEART: Open-source software for automated electrocardiographic and vectorcardiographic analysis
Hans Friedrich Stabenau1, Jonathan W Waks1
1Harvard-Thorndike Electrophysiology Institute, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States of America.
BRAVEHEART is a new, open-source MATLAB software for analyzing digital electrocardiograms (ECG) and vectorcardiograms (VCG). This customizable tool aims to improve cardiovascular disease diagnosis and research reproducibility.
Area of Science:
- Cardiology
- Biomedical Engineering
- Medical Informatics
Background:
- Electrocardiographic (ECG) and vectorcardiographic (VCG) analyses are crucial for diagnosing cardiovascular disease and assessing future event risk.
- The increasing adoption of digital ECGs has spurred research into new analytical parameters.
- Widespread automated computer-based ECG/VCG analysis is hindered by the lack of open-source, customizable software.
Purpose of the Study:
- To introduce BRAVEHEART, an open-source software package for automated and reproducible ECG/VCG analysis.
- To provide researchers with a customizable and user-friendly tool for scientific analysis of digital ECG data.
- To facilitate further research in ECG/VCG analysis by reducing development time and resource investment.
Main Methods:
- Development of BRAVEHEART, an open-source, modular, and customizable software package in MATLAB.
- Implementation of automatic ECG/VCG processing, including signal denoising and artifact removal.
- Inclusion of non-dominant beat identification/removal, fiducial point annotation, VCG construction, and median beat construction.
Main Results:
- BRAVEHEART processes standard 12-lead digital ECGs, accepting various formats.
- The software performs automatic signal denoising, beat identification, and fiducial point annotation.
- Customizable measurements on median beats are generated, with results available in numeric and graphical formats.
Conclusions:
- BRAVEHEART offers easily customizable scientific analysis for ECGs and VCGs.
- The availability of BRAVEHEART is expected to advance ECG/VCG analysis research and improve study reproducibility.
- The software, its source code, and documentation are publicly accessible under the GNU GPL v3 license.
Related Concept Videos
Electrocardiogram
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
Electrocardiogram Fundamentals
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...
Correlation between ECG and Cardiac Cycle
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...

