[HTML][HTML] Complex-order fractional diffusion in reaction-diffusion systems

A Bueno-Orovio, K Burrage - Communications in Nonlinear Science and …, 2023 - Elsevier
Fractional differential equations have become a fundamental modelling approach for
understanding and simulating the many aspects of non-locality and spatial heterogeneity of …

[HTML][HTML] Quantifying the frequency modulation in electrograms during simulated atrial fibrillation in 2D domains

JP Ugarte, A Gómez-Echavarría, C Tobón - Computers in Biology and …, 2024 - Elsevier
Atrial fibrillation (AF) affects millions of people in the world, causing increased morbidity and
mortality. Treatment involves antiarrhythmic drugs and catheter ablation, showing high …

Empirical study of college students' extracurricular reading preference by functional data analysis of the library book borrowing behavior

F Zhang, Y Liu, C Song, C Yang, S Hong - Plos one, 2024 - journals.plos.org
Library data contains many students' reading records that reflect their general knowledge
acquisition. The purpose of this study is to deeply mine the library book-borrowing data, with …

New mapping algorithm SHIM (SVD, Hilbert Identifying Method) for the extraction of phase singularities and spiral waves in cardiac arrhythmias

Y Biton, D Braunstein, A Rabinovitch - Biomedical Signal Processing and …, 2025 - Elsevier
Abstract Background and Objective Atrial fibrillation (AF) is the most prevalent cardiac
arrhythmia worldwide. The effectiveness of AF ablation is restricted primarily by inaccuracies …

Vector Field Heterogeneity for the Assessment of Locally Disorganised Cardiac Electrical Propagation Wavefronts from High-density Multielectrodes

L Pancorbo, S Ruipérez-Campillo… - IEEE Open Journal …, 2023 - ieeexplore.ieee.org
High-density multielectrode catheters are becoming increasingly popular in cardiac
electrophysiology for advanced characterisation of the cardiac tissue, due to their potential …

Unsupervised classification of dimension-reduced principal component scores from persistent atrial fibrillation electrograms

A Nadim, X Li, G Chu, D Soriano… - 17th International …, 2021 - spiedigitallibrary.org
We have recently shown the feasibility of unsupervised classification to identify clusters of
persistent atrial fibrillation (persAF) atrial electrograms (AEGs) using attributes calculated by …

The complex-order fractional Laplacian: Stable operators, spectral methods, and applications to heterogeneous media

A Bueno-Orovio, K Burrage - 2021 - preprints.org
Fractional differential equations have become a fundamental modelling approach for
understanding and simulating the many aspects of nonlocality and spatial heterogeneity of …

Local synchronization indices for rotors detection in atrial fibrillation: A simulation study

A Orozco-Duque, JP Ugarte, C Tobón - Communications in Nonlinear …, 2021 - Elsevier
Stable rotors have been proposed as mechanisms that maintain atrial fibrillation which is the
most common arrhythmia worldwide. The information of intracardiac electrograms (EGMs) …

Quantifying Irregular Morphology Electrograms in Atrial Fibrillation Using Fractional Fourier Domains

A Gómez-Echavarría, JP Ugarte, C Tobón - Applied Computer Sciences in …, 2020 - Springer
A fractional Fourier transform-based strategy is proposed for the analysis of morphological
irregularities of 933 simulated electrograms recorded from a 3D simulated human atria …

Non-Invasive Mapping of Atrial Substrate Quality in Radiofrequency Catheter Ablation for Atrial Fibrillation: Integrating Permutation Entropy and Marginal Spectrum

Z Yadan Zhang, Y Cui, X Min, W Jian, L Yifu… - … and Jian, Wu and Yifu, Li … - papers.ssrn.com
Electrocardiographic imaging (ECGI) is a non-invasive technique that reconstructs and
visualizes atrial epicardial potentials to assess atrial substrate quality and identify potential …