Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2018 Nov 2;9:1483. doi: 10.3389/fphys.2018.01483

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2018 Christoph and Luther.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

Action potential vortex waves mapped on contracting left ventricular surface of rabbit heart during ventricular fibrillation. Electromechanical optical mapping was performed with voltage-sensitive staining (Di-4-ANEPPS, 128 × 128 pixels, 500 fps, approx. 1 × 1 cm field of view). (A,C) Maps with substantially inhibited motion artifacts after tracking and motion-stabilization showing action potential waves. (B,D) Action potential wave maps without tracking and motion stabilization. Maps exhibit strong motion artifacts. In (A,B) and (C,D) the same activity is shown with two different normalizations, see main text. (E) Exemplary time-series obtained from optical maps with motion before (gray) and after tracking and numerical motion-stabilization (black).