A Multiscale In Silico Study To Characterize The Atrial Electrical Activity Of Patients With Atrial Fibrillation A Translational Study To Guide Ablation Therapy
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A Multiscale In Silico Study To Characterize The Atrial Electrical Activity Of Patients With Atrial Fibrillation A Translational Study To Guide Ablation Therapy
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Author : Sánchez Arciniegas, Jorge Patricio
language : en
Publisher: KIT Scientific Publishing
Release Date : 2022-05-30
A Multiscale In Silico Study To Characterize The Atrial Electrical Activity Of Patients With Atrial Fibrillation A Translational Study To Guide Ablation Therapy written by Sánchez Arciniegas, Jorge Patricio and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-30 with Medical categories.
The atrial substrate undergoes electrical and structural remodeling during atrial fibrillation. Detailed multiscale models were used to study the effect of structural remodeling induced at the cellular and tissue levels. Simulated electrograms were used to train a machine-learning algorithm to characterize the substrate. Also, wave propagation direction was tracked from unannotated electrograms. In conclusion, in silico experiments provide insight into electrograms' information of the substrate.
Multiscale Cohort Modeling Of Atrial Electrophysiology Risk Stratification For Atrial Fibrillation Through Machine Learning On Electrocardiograms
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Author : Nagel, Claudia
language : en
Publisher: KIT Scientific Publishing
Release Date : 2023-04-24
Multiscale Cohort Modeling Of Atrial Electrophysiology Risk Stratification For Atrial Fibrillation Through Machine Learning On Electrocardiograms written by Nagel, Claudia and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-04-24 with categories.
An early detection and diagnosis of atrial fibrillation sets the course for timely intervention to prevent potentially occurring comorbidities. Electrocardiogram data resulting from electrophysiological cohort modeling and simulation can be a valuable data resource for improving automated atrial fibrillation risk stratification with machine learning techniques and thus, reduces the risk of stroke in affected patients.
Development And Evaluation Of Coded Aperture Reconstruction Methods For Intraoperative Gamma Cameras
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Author : Meißner, Tobias
language : en
Publisher: KIT Scientific Publishing
Release Date : 2025-01-20
Development And Evaluation Of Coded Aperture Reconstruction Methods For Intraoperative Gamma Cameras written by Meißner, Tobias and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-01-20 with categories.
Intraoperative Gamma Cameras are becoming increasingly common for radio-guided surgery. Coded Aperture Imaging has been proposed as a collimation technique, because it offers a better trade-off between sensitivity and spatial resolution, but requires image reconstruction. Therefore, a Convolutional Encoder-Decoder Network was developed and quantitatively compared with analytical methods. Furthermore, 3D-localization of point-like sources was investigated.
Leslie Stuart
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Author : Andrew Lamb
language : en
Publisher: Routledge
Release Date : 2020-10-28
Leslie Stuart written by Andrew Lamb and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-28 with Music categories.
Leslie Stuart (1864-1928) was a British songwriter best remembered as the composer of the hit show, Florodora. He began writing popular songs as a teenager, first for blackface and vaudeville performers, and eventually for more "legitimate" shows and revues. Florodora (1899), written in collaboration with London's most fashionable librettist, Owen Hall, was a musical-comedy sensation. Its combination of the traditional slow love ballads and waltzes with more rhythmic and long-lined numbers made it a worldwide success. He continued to compose through the first decade of the 20th century, laying the groundwork for the coming innovations in British and American musical theater.
Electrocardiographic Imaging
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Author : Maria S. Guillem
language : en
Publisher: Frontiers Media SA
Release Date : 2020-04-17
Electrocardiographic Imaging written by Maria S. Guillem and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-17 with categories.
Electrical activity in the myocardium coordinates the contraction of the heart, and its knowledge could lead to a better understanding, diagnosis, and treatment of cardiac diseases. This electrical activity generates an electromagnetic field that propagates outside the heart and reaches the human torso surface, where it can be easily measured. Classical electrocardiography aims to interpret the 12-lead electrocardiogram (ECG) to determine cardiac activity and support the diagnosis of cardiac pathologies such as arrhythmias, altered activations, and ischemia. More recently, a higher number of leads is used to reconstruct a more detailed quantitative description of the electrical activity in the heart by solving the so-called inverse problem of electrocardiography. This technique is known as ECG imaging. Today, clinical applications of ECG imaging are showing promising results in guiding a variety of electrophysiological interventions such as catheter ablation of atrial fibrillation and ventricular tachycardia. However, in order to promote the adoption of ECG imaging in the routine clinical practice, further research is required regarding more accurate mathematical methods, further scientific validation under different preclinical scenarios and a more extensive clinical validation
Cardiovascular Computing Methodologies And Clinical Applications
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Author : Spyretta Golemati
language : en
Publisher: Springer
Release Date : 2019-02-12
Cardiovascular Computing Methodologies And Clinical Applications written by Spyretta Golemati and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-02-12 with Technology & Engineering categories.
This book provides a comprehensive guide to the state-of-the-art in cardiovascular computing and highlights novel directions and challenges in this constantly evolving multidisciplinary field. The topics covered span a wide range of methods and clinical applications of cardiovascular computing, including advanced technologies for the acquisition and analysis of signals and images, cardiovascular informatics, and mathematical and computational modeling.
Reaction Diffusion Waves
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Author : Arnaud Ducrot
language : en
Publisher: Editions Publibook
Release Date : 2009
Reaction Diffusion Waves written by Arnaud Ducrot and has been published by Editions Publibook this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Differential operators categories.
Cardiovascular Mathematics
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Author : Luca Formaggia
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-06-27
Cardiovascular Mathematics written by Luca Formaggia and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-06-27 with Mathematics categories.
Mathematical models and numerical simulations can aid the understanding of physiological and pathological processes. This book offers a mathematically sound and up-to-date foundation to the training of researchers and serves as a useful reference for the development of mathematical models and numerical simulation codes.
Atrial Fibrillation From An Engineering Perspective
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Author : Leif Sörnmo
language : en
Publisher: Springer
Release Date : 2018-05-15
Atrial Fibrillation From An Engineering Perspective written by Leif Sörnmo and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-15 with Technology & Engineering categories.
Atrial Fibrillation from an Engineering Perspective provides an up-to-date overview of techniques developed for acquisition, modeling, and analysis of noninvasive, bioelectrical signals reflecting this common arrhythmia. Special emphasis is put on emerging technologies for monitoring of atrial fibrillation in connection with ischemic stroke, interventional ablation procedures, and pharmacological treatment, applications which all depend on the availability of techniques for detecting and characterizing episodes of paroxysmal atrial fibrillation. Detectors exploring both rhythm and morphology are described, as well as detectors confined to rhythm and better suited for low power implementation. A wide variety of approaches to modeling and characterization of atrial activity are described, emanating from a statistical and deterministic starting points. This book is suitable for graduate students, researchers, and engineers who want a comprehensive treatise of atrial fibrillation from an engineering perspective. It may be used for self-study, as a supplement to courses in signal processing, or as a modern monograph by researchers in the field of atrial fibrillation.
Understanding Atrial Fibrillation
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Author : Luca Mainardi
language : en
Publisher: Morgan & Claypool Publishers
Release Date : 2008-12-05
Understanding Atrial Fibrillation written by Luca Mainardi and has been published by Morgan & Claypool Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-12-05 with Technology & Engineering categories.
The book presents recent advances in signal processing techniques for modeling, analysis, and understanding of the heart's electrical activity during atrial fibrillation. This arrhythmia is the most commonly encountered in clinical practice and its complex and metamorphic nature represents a challenging problem for clinicians, engineers, and scientists. Research on atrial fibrillation has stimulated the development of a wide range of signal processing tools to better understand the mechanisms ruling its initiation, maintenance, and termination. This book provides undergraduate and graduate students, as well as researchers and practicing engineers, with an overview of techniques, including time domain techniques for atrial wave extraction, time-frequency analysis for exploring wave dynamics, and nonlinear techniques to characterize the ventricular response and the organization of atrial activity. The book includes an introductory chapter about atrial fibrillation and its mechanisms, treatment, and management. The successive chapters are dedicated to the analysis of atrial signals recorded on the body surface and to the quantification of ventricular response. The rest of the book explores techniques to characterize endo- and epicardial recordings and to model atrial conduction. Under the appearance of being a monothematic book on atrial fibrillation, the reader will not only recognize common problems of biomedical signal processing but also discover that analysis of atrial fibrillation is a unique challenge for developing and testing novel signal processing tools. Table of Contents: Analysis of Ventricular Response During Atrial Fibrillation / Organization Measures of Atrial Activity During Fibrillation / Modeling Atrial Fibrillation: From Myocardial Cells to ECG / Algorithms for Atrial Tachyarrythmia Detection for Long-Term Monitoring with Implantable Devices