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

Electrodes: Overview

Electrodes: Overview

Electrochemical measurements are conducted in an electrochemical cell composed of various components that control and measure the current and potential. One fundamental component is electrodes, conductive materials that enable electron transfer reactions at their surfaces.
There are two main types of electrodes in electrochemical cells. The first type, known as the working or indicator electrode, has a potential that is sensitive to the analyte's concentration and reacts to changes in the...

You might also read

Related Articles

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

Sort by

Same author

Computational Modelling of Selective Capture Mechanisms in Conduction System Pacing.

Annals of biomedical engineering·2026

Same author

Role of interatrial connection ablation in re-entry dynamics: an in silico evaluation.

Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology·2026

Same author

Influence of spatial resolution and scar extent on stretch-activated mechano-electric feedback in post-infarction ventricular models.

Computers in biology and medicine·2026

Same author

Scalable differentiation of human cardiac organoids from iPSCs generates cardiac tissues for cardiac cell therapy.

Theranostics·2026

Same author

Using monophasic potential mapping to visualize the Brugada substrate.

Heart rhythm·2026

Same author

High-resolution cardiac mapping meets computational imaging to merge structure and function.

Nature cardiovascular research·2026

Search research articles

Related Experiment Video

Updated: Jul 13, 2026

Examining Local Network Processing using Multi-contact Laminar Electrode Recording

Examining Local Network Processing using Multi-contact Laminar Electrode Recording

Published on: September 8, 2011

Hexagonal Multielectrode Design for Recording Local Electrograms With Superior Characteristics.

Mark G Hoogendijk¹, Ruben Coronel², Rishi Arora³

¹Department of Cardiology, Cardiovascular Institute, Thorax Center, Erasmus MC, Rotterdam, the Netherlands.

JACC. Clinical Electrophysiology

|May 15, 2025

Summary

Local coaxial electrograms improve activation mapping precision over bipolar electrograms. Hexagonal electrode grids enable efficient creation of triangular references for superior coaxial electrogram recording and analysis.

Keywords:

activation mapping catheter electrogram multielectrode

More Related Videos

Multi-unit Recording Methods to Characterize Neural Activity in the Locust Schistocerca Americana Olfactory Circuits

Multi-unit Recording Methods to Characterize Neural Activity in the Locust Schistocerca Americana Olfactory Circuits

Published on: January 25, 2013

Construction of Local Field Potential Microelectrodes for in vivo Recordings from Multiple Brain Structures Simultaneously

Construction of Local Field Potential Microelectrodes for in vivo Recordings from Multiple Brain Structures Simultaneously

Published on: March 14, 2022

Related Experiment Videos

Last Updated: Jul 13, 2026

Examining Local Network Processing using Multi-contact Laminar Electrode Recording

Examining Local Network Processing using Multi-contact Laminar Electrode Recording

Published on: September 8, 2011

Multi-unit Recording Methods to Characterize Neural Activity in the Locust Schistocerca Americana Olfactory Circuits

Multi-unit Recording Methods to Characterize Neural Activity in the Locust Schistocerca Americana Olfactory Circuits

Published on: January 25, 2013

Construction of Local Field Potential Microelectrodes for in vivo Recordings from Multiple Brain Structures Simultaneously

Construction of Local Field Potential Microelectrodes for in vivo Recordings from Multiple Brain Structures Simultaneously

Published on: March 14, 2022

Area of Science:

Biomedical Engineering
Cardiac Electrophysiology

Background:

Bipolar electrograms are common for activation mapping but have limitations.
Local coaxial reference electrograms offer potential advantages for mapping.
Current methods for coaxial electrograms may require complex electrode configurations.

Purpose of the Study:

To evaluate the utility of coaxial electrograms using a novel local reference.
To assess the feasibility of creating local references with hexagonal multielectrode grids.
To compare coaxial electrograms with traditional bipolar electrograms for activation mapping.

Main Methods:

Development of a custom multielectrode with triangular and cross-shaped local references.
Recording and analysis of coaxial and bipolar electrograms.
Comparison of electrogram morphology and activation time based on electrode orientation and reference type.

Main Results:

Triangular and cross-shaped local references yielded similar coaxial electrogram recordings.
Coaxial electrogram morphology was independent of electrode orientation relative to the activation front.
Activation times from coaxial electrograms closely matched local activation times.
Coaxial electrograms demonstrated advantages over bipolar electrograms in mapping.

Conclusions:

Local coaxial electrograms, particularly when recorded using hexagonal multielectrode grids, offer enhanced precision for activation mapping.
The described method provides a more robust and potentially more efficient approach to clinical activation mapping.
Hexagonal multielectrode designs represent a promising advancement for cardiac electrophysiology mapping.