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

. 2023 Aug 10;10:1232882. doi: 10.3389/fcvm.2023.1232882

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

© 2023 Brisinda, Fenici and Fenici.

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

(A) High-resolution MCG map of the “ramp-like” pattern during the PR interval with superimposed isomagnetic lines [modified from (120) data]. (B) Validation of the atrial repolarization nature of the PR “ramp-like” MCG pattern with simultaneous MCG and atrial monophasic action potential recording. The red asterisk indicates the His bundle MF (±0.2pT) disclosed during the last half of the PR interval after subtraction of the stronger (±1.8 pT) atrial repolarization MF (open red arrow). The pseudo-current reconstruction (multiple white arrows on the MF maps) indicates the opposite direction of atrial and His bundle depolarization current and of atrial repolarization current [standardized MF color code: in blue (−), MF outgoing from the chest; in red (+), MF entering in the chest].