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Early afterdepolarizations (EADs) are pathological voltage oscillations in cardiomyocytes that have been observed in response to a number of pharmacological agents and disease conditions. EADs are small voltage fluctuations that occur…

组织与器官 · 定量生物学 2019-05-15 Theodore Vo , Richard Bertram

Electrocardiogram(ECG) is commonly used to detect cardiac irregularities such as atrial fibrillation, bradycardia, and other irregular complexes. While previous studies have achieved great accomplishment classifying these irregularities…

机器学习 · 计算机科学 2022-05-02 Hao-Chun Yang , Wan-Ting Hsieh , Trista Pei-Chun Chen

We propose a quite general model of active media by consideration of the interaction between pacemakers via their phase response curves. This model describes a network of pulse oscillators coupled by their response to the internal…

混沌动力学 · 物理学 2007-05-23 Sergei Rybalko , Ekaterina Zhuchkova

This paper proposes a low-cost and highly accurate ECG-monitoring system intended for personalized early arrhythmia detection for wearable mobile sensors. Earlier supervised approaches for personalized ECG monitoring require both abnormal…

机器学习 · 计算机科学 2024-08-23 Mehmet Yamaç , Mert Duman , İlke Adalıoğlu , Serkan Kiranyaz , Moncef Gabbouj

Probabilistic estimation of cardiac electrophysiological model parameters serves an important step towards model personalization and uncertain quantification. The expensive computation associated with these model simulations, however, makes…

Investigation on the electrocardiogram (ECG) signals is an essential way to diagnose heart disease since the ECG process is noninvasive and easy to use. This work presents a supraventricular arrhythmia prediction model consisting of a few…

信号处理 · 电气工程与系统科学 2021-12-28 Pampa Howladar , Manodipan Sahoo

We present PhysECG: a physically motivated projection of the 12 lead electrocardiogram, supported by a deep learning model trained on 21,799 recordings from the PTB-XL database and discuss its feasibility. The method allows to evaluate the…

Electrocardiogram (ECG)-based models have achieved strong performance in diagnostic tasks, yet they remain limited in modeling how cardiac dynamics evolve under external interventions. In particular, existing approaches focus primarily on…

人工智能 · 计算机科学 2026-05-19 Zhikang Chen , Yue Wang , Sen Cui , Yu Zhang , Changshui Zhang , Tianling Ren , Tingting Zhu

Cardiovascular diseases stand as the primary global cause of mortality. Among the various imaging techniques available for visualising the heart and evaluating its function, echocardiograms emerge as the preferred choice due to their safety…

图像与视频处理 · 电气工程与系统科学 2023-11-22 Adil Dahlan , Cyril Zakka , Abhinav Kumar , Laura Tang , Rohan Shad , Robyn Fong , William Hiesinger

Electrocardiogram (ECG), a non-invasive and affordable tool for cardiac monitoring, is highly sensitive in detecting acute heart attacks. However, due to the lengthy nature of ECG recordings, numerous machine learning methods have been…

信号处理 · 电气工程与系统科学 2025-03-04 Yue Wang , Xu Cao , Yaojun Hu , Haochao Ying , Hongxia Xu , Ruijia Wu , James Matthew Rehg , Jimeng Sun , Jian Wu , Jintai Chen

The electrocardiogram (ECG) is modulated by torso-heart anatomy, and this challenges patients' diagnosis and risk stratification. This study aims to quantify how torso-heart anatomical factors affect sex-differences in ECG biomarkers in…

During cardiac arrhythmias, dynamical patterns of electrical activation form and evolve, which are of interest to understand and cure heart rhythm disorders. The analysis of these patterns is commonly performed by calculating the local…

适应与自组织系统 · 物理学 2021-09-10 Louise Arno , Jan Quan , Nhan T. Nguyen , Maarten Vanmarcke , Elena G. Tolkacheva , Hans Dierckx

An important paradigm in smart health is developing diagnosis tools and monitoring a patient's heart activity through processing Electrocardiogram (ECG) signals is a key example, sue to high mortality rate of heart-related disease. However,…

信号处理 · 电气工程与系统科学 2018-11-02 Jiaming Chen , Ali Valehi , Abolfazl Razi

There has been a recent tremendous interest in label-free detection of biomarkers which is a critical enabler of point-of-need diagnostics. A low-power, small form factor, multiplexed wearable system is proposed for continuous detection of…

信号处理 · 电气工程与系统科学 2021-04-06 Devangsingh Sankhala , Madhavi Pali , Kai-Chun Lin , Badrinath Jagannath , Sriram Muthukumar , Shalini Prasad

Cardiovascular disease remains the leading cause of global mortality, yet scalable cardiac monitoring is hindered by the gap between diagnostic-rich ECG and ubiquitous wearable PPG. Bridging this gap requires representations that are…

机器学习 · 计算机科学 2026-05-12 Zhangdaihong Liu , Chang Liu , Fenglin Liu , Yixuan Chen , Yang Yang , David A. Clifton , Xiao Gu

Cardiac resynchronization therapy (CRT) is a common intervention for patients with dyssynchronous heart failure, yet approximately one-third of recipients fail to respond, partly due to suboptimal lead placement. Identifying optimal pacing…

计算工程、金融与科学 · 计算机科学 2026-02-13 Ehsan Naghavi , Haifeng Wang , Vahid Ziaei Rad , Julius Guccione , Ghassan Kassab , Vishnu Boddeti , Seungik Baek , Lik-Chuan Lee

We propose the Graph Space Embedding (GSE), a technique that maps the input into a space where interactions are implicitly encoded, with little computations required. We provide theoretical results on an optimal regime for the GSE, namely a…

机器学习 · 计算机科学 2019-08-01 João Pereira , Albert Groen , Erik Stroes , Evgeni Levin

Segmentation of cardiac magnetic resonance images (MRI) is crucial for the analysis and assessment of cardiac function, helping to diagnose and treat various cardiovascular diseases. Most recent techniques rely on deep learning and usually…

计算机视觉与模式识别 · 计算机科学 2025-05-08 Bruno Viti , Franz Thaler , Kathrin Lisa Kapper , Martin Urschler , Martin Holler , Elias Karabelas

In neuroelectrophysiology one records electric potentials or magnetic fields generated by ensembles of synchronously active neurons in response to externally presented stimuli. These evoked responses are often produced by multiple…

医学物理 · 物理学 2007-05-23 Kevin H. Knuth , Wilson A. Truccolo , Steven L. Bressler , Mingzhou Ding

Electrocardiographic imaging (ECGI) seeks to reconstruct cardiac electrical activity from body-surface potentials noninvasively. However, the associated inverse problem is severely ill-posed and requires robust regularization. While…