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Related Experiment Video

Updated: Sep 28, 2025

High-Throughput Analysis of Optical Mapping Data Using ElectroMap
07:36

High-Throughput Analysis of Optical Mapping Data Using ElectroMap

Published on: June 4, 2019

9.6K

Open-source low-cost cardiac optical mapping system.

Dmitry Rybashlykov1, Jaclyn Brennan2, Zexu Lin2

  • 1Human Physiology Lab, Moscow Institute of Physics and Technology, Moscow, Russia.

Plos One
|March 31, 2022
PubMed
Summary
This summary is machine-generated.

We developed an affordable optical mapping system for studying cardiac and neural electrophysiology. This cost-effective solution enables high-speed action potential recordings with sufficient accuracy for research.

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Area of Science:

  • Cardiovascular Research
  • Neuroscience
  • Biomedical Engineering

Background:

  • Optical mapping using voltage- or calcium-sensitive dyes is crucial for studying cardiac and neural electrophysiology.
  • High-speed cameras for action potential propagation imaging are typically very expensive.

Purpose of the Study:

  • To present a low-cost, open-source optical mapping system for electrophysiology research.
  • To demonstrate the system's capability for high-resolution action potential imaging.

Main Methods:

  • Utilized an iDS UI-3130CP rev.2 camera and open-source software for image acquisition and processing.
  • Recorded action potential propagation in rodent hearts at 977 frames per second.
  • Compared system performance to a specialized MiCAM Ultimate-L camera.

Main Results:

  • Achieved action potential recordings with a signal-to-noise ratio of 16 ± 10.
  • Demonstrated sufficient accuracy for measuring action potential waveform, conduction velocity (± 0.04 m/s), and duration (± 7ms).
  • Successfully used the system for pharmacological studies, prolonging action potential duration with 4-aminopyridine.

Conclusions:

  • The presented system offers a cost-effective alternative for high-speed optical mapping.
  • The system provides adequate performance for accurate electrophysiological measurements and pharmacological investigations in rodent hearts.