Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Electrocardiogram01:29

Electrocardiogram

1.9K
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...
1.9K
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

470
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...
470

You might also read

Related Articles

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

Sort by
Same author

Artificial intelligence as a computational kit for digital biomarker discovery.

Journal of translational internal medicine·2026
Same author

Molecular characterization of Sarcocystis spp. in intestines of coyotes and foxes from Pennsylvania, USA.

Parasites & vectors·2026
Same author

Burden of incomplete immunization and its determinants among children under five years in India: a systematic review and meta-analysis (2015-2025).

Vaccine·2026
Same author

Prospective validation and implementation of a model to identify patients with carbapenem-resistant Enterobacterales (CRE) carriage on admission to acute care hospitals.

Infection control and hospital epidemiology·2026
Same author

Artificial Intelligence-Enhanced Electrocardiogram for Longitudinal Evaluation of Right Ventricular Dysfunction After Acute Pulmonary Embolism: Rational and Design of CURES-CARE Study.

Pulmonary circulation·2026
Same author

Reconstructing 12-lead ECG from 3-lead ECG using variational autoencoder to improve cardiac disease detection of wearable ECG devices.

PLOS digital health·2026
Same journal

From Chaos to Care: Personalized AI for Early Cardiac Arrhythmia Warning.

medRxiv : the preprint server for health sciences·2026
Same journal

Large distant deletion disrupts CDKN2A enhancer and predisposes to melanoma.

medRxiv : the preprint server for health sciences·2026
Same journal

Artificial Intelligence-Based Chatbots in Genetic Counseling Practice: Current Uptake, Utilization, and Perspectives.

medRxiv : the preprint server for health sciences·2026
Same journal

Longitudinal MAP-MRI-based Assessment of Tissue Microstructural Alterations in Acute mTBI.

medRxiv : the preprint server for health sciences·2026
Same journal

A class of deep intronic <i>IGHMBP2</i> variants activate a shared cryptic splice donor, enabling correction of select variants with a single antisense oligonucleotide.

medRxiv : the preprint server for health sciences·2026
Same journal

Global Socioeconomic Context and Brain Ageing in Epilepsy: an ENIGMA-Epilepsy study.

medRxiv : the preprint server for health sciences·2026
See all related articles

Related Experiment Video

Updated: May 21, 2025

Freezing Human ES Cells
08:00

Freezing Human ES Cells

Published on: October 12, 2006

15.1K

The Harvard-Emory ECG Database.

Zuzana Koscova1, Qiao Li1, Chad Robichaux1

  • 1Department of Biomedical Informatics, School of Medicine, Emory University, Atlanta, 30322, US.

Medrxiv : the Preprint Server for Health Sciences
|May 19, 2025
PubMed
Summary
This summary is machine-generated.

The Harvard-Emory ECG Database offers over 10 million electrocardiogram (ECG) recordings from two major hospitals. This extensive dataset, including detailed annotations, supports cardiovascular research and clinical insights.

More Related Videos

Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure
15:18

Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure

Published on: July 30, 2009

18.1K
Human ES cells: Starting Culture from Frozen Cells
02:47

Human ES cells: Starting Culture from Frozen Cells

Published on: November 9, 2006

12.3K

Related Experiment Videos

Last Updated: May 21, 2025

Freezing Human ES Cells
08:00

Freezing Human ES Cells

Published on: October 12, 2006

15.1K
Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure
15:18

Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure

Published on: July 30, 2009

18.1K
Human ES cells: Starting Culture from Frozen Cells
02:47

Human ES cells: Starting Culture from Frozen Cells

Published on: November 9, 2006

12.3K

Area of Science:

  • Cardiology
  • Medical Informatics
  • Biomedical Data Science

Background:

  • The Harvard-Emory ECG Database (HEEDB) is a collaborative effort between Harvard University and Emory University.
  • It comprises a vast collection of 12-lead electrocardiogram (ECG) recordings gathered from clinical settings since the early 1990s.
  • The database continuously expands with new data, ensuring its relevance and comprehensiveness.

Purpose of the Study:

  • To establish a large-scale, publicly accessible repository of 12-lead ECG recordings.
  • To provide rich annotations including diagnoses, morphology, and rhythms for research and development.
  • To facilitate advancements in cardiovascular research through comprehensive data sharing.

Main Methods:

  • Collection of over 10 million 12-lead ECG recordings from Massachusetts General Hospital and Emory University Hospital.
  • Standardized storage of ECGs in WFDB format, sampled at 250 and 500 Hz.
  • Inclusion of 12SL annotations for a significant portion of the recordings, covering diagnoses, morphology, and rhythms.

Main Results:

  • The HEEDB contains 10,608,417 ECG recordings from 1,818,247 patients (MGH) and 1,452,964 recordings from 552,481 patients (EUH).
  • Detailed 12SL annotations are available for 10,471,531 MGH recordings and 1,268,277 EUH recordings.
  • Future updates will incorporate demographic data and clinical codes (ICD-9/10, CPT) and medication history.

Conclusions:

  • The HEEDB represents a significant resource for the medical and research community.
  • Its extensive data and annotations will drive innovation in ECG interpretation and cardiovascular disease research.
  • The ongoing expansion and planned data additions will further enhance its utility for diverse biomedical applications.