Vlad GHIZDOVAT1, Maricel AGOP2,3,*
Abstract. In this work we use nonlinear methods to study atrial fibrillations: we construct the 3D attractors, generate the 2D maps, and calculate the Hurst exponent and fractal dimension, respectively, for signals collected from a patient during an atrial fibrillation crisis. Our results show that the normal and pathological cardiac dynamics can be characterized through specific patterns (strange attractors).
Keywords: atrial fibrillation; attractors; Hurst exponent; electrocardiogram
DOI 10.56082/annalsarsciphyschem.2025.1.7
1 Biophysics and Medical Physics Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
2 Academy of Romanian Scientists, 3 Ilfov, 050044, Bucharest, Romania
3 Department of Physics, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania
* corresponding author, email: m.agop@yahoo.com
PUBLISHED in Annals of the Academy of Romanian Scientists Series on Physics and Chemistry, Volume 10, No1