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  • Letter
  • Open Access

Magnetic signature of thermoelectric cardiac dynamics

Anna Crispino1,*, Martina Nicoletti1,2,*, Alessandro Loppini3,†, Alessio Gizzi2, Letizia Chiodo1,4, Christian Cherubini5, and Simonetta Filippi1,4

  • *These authors contributed equally to this work.
  • †Contact author: a.loppini@unicampus.it
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Phys. Rev. E 111, L012401 – Published 16 January, 2025

DOI: https://doi.org/10.1103/PhysRevE.111.L012401

Abstract

Developing methods to predict electromagnetic instabilities in cardiac dynamics is crucial. However, a comprehensive view of the heart's magnetic activity at a tissue scale is still needed. To address such a challenging problem, we present a theoretical framework to investigate thermoelectric cardiac dynamics from the magnetic field perspective. Our framework demonstrates that periodic stimulations of cardiac cell strands create an external magnetic field, revealing predictable features of nonlinear spatiotemporal cardiac dynamics. Magnetic restitution curves better discriminate instabilities and bifurcations through a thermo-electro-magnetic map analysis. This new approach lays the foundation for innovative, noninvasive diagnostic tools for cardiac arrhythmias.

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Phys. Rev. E 111, L012401– Published 16 January, 2025
  • Received 5 July 2024
  • Revised 31 October 2024
  • Accepted 26 November 2024
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