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Electroencephalography (EEG) and Magnetoencephalography (MEG) are pivotal in understanding brain activity but are limited by their poor spatial resolution. EEG/MEG source imaging (ESI) infers the high-resolution electric field distribution…

Signal Processing · Electrical Eng. & Systems 2024-02-01 Song Wang , Chen Wei , Kexin Lou , Dongfeng Gu , Quanying Liu

The classification of electrocardiogram (ECG) plays a crucial role in the development of an automatic cardiovascular diagnostic system. However, considerable variances in ECG signals between individuals is a significant challenge. Changes…

Signal Processing · Electrical Eng. & Systems 2023-06-08 Md Niaz Imtiaz , Naimul Khan

This paper explores a new sequential selection framework for the optimal sensor placement (OSP) in Electrocardiography imaging networks (ECGI). The proposed methodology incorporates the use a recent experimental design method for the…

Machine Learning · Computer Science 2022-09-08 Emad Alenany , Changqing Cheng

The curtain of technical limitations impeding rat multichannel non-invasive electroencephalography (EEG) has risen. Given the importance of this preclinical model, development and validation of EEG source imaging (ESI) is essential. We…

Neurons and Cognition · Quantitative Biology 2016-01-26 Pedro A. Valdes-Hernandez , Jihye Bae , Yinchen Song , Akira Sumiyoshi , Eduardo Aubert-Vazquez , Jorge J. Riera

Electrocardiography (ECG) is a low-cost, widely used modality for diagnosing electrical abnormalities like atrial fibrillation by capturing the heart's electrical activity. However, it cannot directly measure cardiac morphological…

Machine Learning · Computer Science 2026-03-10 Michelle Espranita Liman , Özgün Turgut , Alexander Müller , Eimo Martens , Daniel Rueckert , Philip Müller

Structural heart disease (SHD) is a prevalent condition with many undiagnosed cases, and early detection is often limited by the high cost and accessibility constraints of echocardiography (ECHO). Recent studies show that artificial…

Applications · Statistics 2026-03-04 Ya Zhou , Zhaohong Sun , Tianxiang Hao , Xiangjie Li

The classification of electrocardiogram (ECG) signals is crucial for early detection of arrhythmias and other cardiac conditions. However, despite advances in machine learning, many studies fail to follow standardization protocols, leading…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Guilherme Silva , Pedro Silva , Gladston Moreira , Vander Freitas , Jadson Gertrudes , Eduardo Luz

Electrocardiography (ECG) analysis is crucial for cardiac diagnosis, yet existing foundation models often fail to capture the periodicity and diverse features required for varied clinical tasks. We propose ECG-MoE, a hybrid architecture…

Artificial Intelligence · Computer Science 2026-03-06 Yuhao Xu , Xiaoda Wang , Yi Wu , Wei Jin , Xiao Hu , Carl Yang

Acute Coronary Syndrome (ACS) is a life-threatening cardiovascular condition where early and accurate diagnosis is critical for effective treatment and improved patient outcomes. This study explores the use of ECG foundation models,…

Signal Processing · Electrical Eng. & Systems 2025-02-26 Zeyuan Meng , Lovely Yeswanth Panchumarthi , Saurabh Kataria , Alex Fedorov , Jessica Zègre-Hemsey , Xiao Hu , Ran Xiao

Precision cardiology based on cardiac digital twins requires accurate simulations of cardiac arrhythmias. However, detailed models, such as the monodomain model, are computationally costly and have limited applicability in practice. Thus,…

Computational Engineering, Finance, and Science · Computer Science 2024-10-31 Lia Gander , Rolf Krause , Francisco Sahli Costabal , Simone Pezzuto

Heartbeat classification using electrocardiogram (ECG) data is a vital assistive technology for wearable health solutions. We propose heartbeat feature classification based on a novel sparse representation using time-frequency joint…

Signal Processing · Electrical Eng. & Systems 2019-08-20 Anup Das , Francky Catthoor , Siebren Schaafsma

The heart's contraction is caused by electrical excitation which propagates through the heart muscle. It was recently shown that the electrical excitation can be computed from the contractile motion of a simulated piece of heart muscle…

Medical Physics · Physics 2023-05-16 Jan Lebert , Daniel Deng , Lei Fan , Lik Chuan Lee , Jan Christoph

Animal brains flexibly and efficiently achieve many behavioral tasks with a single neural network. A core goal in modern neuroscience is to map the mechanisms of the brain's flexibility onto the dynamics underlying neural populations.…

Neurons and Cognition · Quantitative Biology 2026-03-12 Anirudh Jamkhandi , Ali Korojy , Olivier Codol , Guillaume Lajoie , Matthew G. Perich

The numerical tools to simulate the bidomain model in cardiac electrophysiology are constantly developing due to the great clinical interest and scientific advances in mathematical models and computational power. The bidomain model consists…

Numerical Analysis · Mathematics 2025-11-03 Gopika P B , Peter Bastian , Nagaiah Chamakuri

Computational modeling of cardiovascular function has become a critical part of diagnosing, treating and understanding cardiovascular disease. Most strategies involve constructing anatomically accurate computer models of cardiovascular…

Image and Video Processing · Electrical Eng. & Systems 2025-01-28 Numi Sveinsson Cepero , Shawn C. Shadden

Cardiac abnormalities affecting heart rate and rhythm are commonly observed in both healthy and acutely unwell people. Although many of these are benign, they can sometimes indicate a serious health risk. ECG monitors are typically used to…

Signal Processing · Electrical Eng. & Systems 2018-07-12 Stewart Whiting , Samuel Moreland , Jason Costello , Glen Colopy , Christopher McCann

Although deep learning has advanced automated electrocardiogram (ECG) diagnosis, prevalent supervised methods typically treat recordings as undifferentiated one-dimensional (1D) signals or two-dimensional (2D) images. This formulation…

Machine Learning · Computer Science 2026-01-13 Runze Ma , Caizhi Liao

Contemporary realistic mathematical models of single-cell cardiac electrical excitation are immensely detailed. Model complexity leads to parameter uncertainty, high computational cost and barriers to mechanistic understanding. There is a…

Tissues and Organs · Quantitative Biology 2022-02-28 Muhamad H. N. Aziz , Radostin D. Simitev

Electrocardiograms (ECGs) and photoplethysmograms (PPGs) are generally used to monitor an individual's cardiovascular health. In clinical settings, ECGs and fingertip PPGs are the main signals used for assessing cardiovascular health, but…

Signal Processing · Electrical Eng. & Systems 2024-06-26 Nathan C. L. Kong , Dae Lee , Huyen Do , Dae Hoon Park , Cong Xu , Hongda Mao , Jonathan Chung

Mathematical models of cardiac electrical activity are one of the most important tools for elucidating information about the heart diagnostic. Even though it is one of the major problems in biomedical research, an efficient mathematical…

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