N. F. Otani, R. Singh, A. Neumann, F. H. Fenton, D. W. Infanger, J. Butcher, S. Luther, R. F. Gilmour Jr. Use of ultrasound imaging to map propagating action potential waves in the heart, Computers in Cardiology 36, 617−620 (2009).
Presently, the nature of action potential propagation deep within myocardial tissue is unclear. As a result, a complete understanding of cardiac dynamics remains elusive. Here we present a technique using ultrasound and electromechanical modeling that has the potential to unlock this mystery. We also present information suggesting tension in the heart behaves as a long-range force incapable of being captured through only local observation of myocardial tissue deformation.