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Author: Nagel, Claudia Publisher: KIT Scientific Publishing ISBN: 3731512815 Category : Languages : en Pages : 280
Book Description
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.
Author: Nagel, Claudia Publisher: KIT Scientific Publishing ISBN: 3731512815 Category : Languages : en Pages : 280
Book Description
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.
Author: J.S. Birks Publisher: Routledge ISBN: 1000155927 Category : History Languages : en Pages : 354
Book Description
The Arab world increasingly falls into two divisions, the capital-poor and the capital-rich countries (where capital means, in essence, oil). In the capital-rich countries shortage of labour is the chief constraint on growth. In the capital-poor countries analysis of the labour market is equally central, as shortage of labour compounds the already existing problem of shortage of capital. This book surveys the labour markets of the Arab world state by state, evaluating them by demand and supply analysis, and analysing the different elements in trends of employment. It forecasts the areas of stress in the next decade and suggests ways of minimising them. The book, based on much previously unpublished information and on extensive on-the-spot research in the respective Arab countries, sets out the economic and social conditions which underly the impending crisis of development in the Arab region. First published in 1980.
Author: Mathias Wilhelms Publisher: KIT Scientific Publishing ISBN: 3731500450 Category : Technology & Engineering Languages : en Pages : 206
Book Description
Multiscale modeling of cardiac electrophysiology helps to better understand the underlying mechanisms of atrial fibrillation, acute cardiac ischemia and pharmacological treatment. For this purpose, measurement data reflecting these conditions have to be integrated into models of cardiac electrophysiology. Several methods for this model adaptation are introduced in this thesis. The resulting effects are investigated in multiscale simulations ranging from the ion channel up to the body surface.AbstractEnglisch = Multiscale modeling of cardiac electrophysiology helps to better understand the underlying mechanisms of atrial fibrillation, acute cardiac ischemia and pharmacological treatment. For this purpose, measurement data reflecting these conditions have to be integrated into models of cardiac electrophysiology. Several methods for this model adaptation are introduced in this thesis. The resulting effects are investigated in multiscale simulations ranging from the ion channel up to the body surface.
Author: Mohammad Shenasa Publisher: Elsevier Health Sciences ISBN: 0323827756 Category : Medical Languages : en Pages : 297
Book Description
This issue of Cardiac Electrophysiology Clinics, Guest Edited by Drs. Mohammad Shenasa, Prashanthan Sanders, and Stanley Nattel, is dedicated to Risk Factors in Atrial Fibrillation: Appraisal of AF Risk Stratification. This is one of four issues selected each year by the series Consulting Editors, Ranjan K. Thakur and Andrea Natale. Topics include, but are not limited to, Epidemiology of Atrial Fibrillation; Hypertension, Prehypertension, Hypertensive Heart Disease and Atrial Fibrillation; Pulmonary Disease, Pulmonary Hypertension and Atrial Fibrillation; Heart Failure with Preserved (HFpEF) and Reduced (HFrEF) LV Systolic Function, Diastolic Dysfunction; Coronary Artery Disease; ECG and Echo Abnormalities in Patients with Atrial Fibrillation Risk Factors; Diabetes and Endocrine Disorders; Obesity and Metabolic Syndrome in Atrial Fibrillation; Renal Disease; Sleep Apnea and Atrial Fibrillation; Channelopathies in Atrial Fibrillation; Implications of Inflammation and Myocardial Fibrosis in Atrial Fibrillation; Role of Biomarkers in Atrial Fibrillation; Left Ventricular Hypertrophy and Other Cardiomyopathies in Atrial Fibrillation; Atrial Fibrillation in Valvular Heart Disease; Atrial Fibrillation in Adult Congenital Heart Disease; Exercise and Athletic Activity in Atrial Fibrillation; Post-op Atrial Fibrillation; Autonomic Dysfunction and Neurohormonal Disorders in Atrial Fibrillation; Social Risk Factors; Atrial Fibrillation and Stroke; Screening for Atrial Fibrillation Risk Factors; Primary Care and Internists Perspective on Atrial Fibrillation Risk Factors; and Lifestyle as a Risk Factor for Atrial Fibrillation.
Author: Mohammad Shenasa Publisher: Elsevier ISBN: 9780323827744 Category : Medical Languages : en Pages : 240
Book Description
This issue of Cardiac Electrophysiology Clinics, Guest Edited by Drs. Mohammad Shenasa, Prashanthan Sanders, and Stanley Nattel, is dedicated to Risk Factors in Atrial Fibrillation: Appraisal of AF Risk Stratification. This is one of four issues selected each year by the series Consulting Editors, Ranjan K. Thakur and Andrea Natale. Topics include, but are not limited to, Epidemiology of Atrial Fibrillation; Hypertension, Prehypertension, Hypertensive Heart Disease and Atrial Fibrillation; Pulmonary Disease, Pulmonary Hypertension and Atrial Fibrillation; Heart Failure with Preserved (HFpEF) and Reduced (HFrEF) LV Systolic Function, Diastolic Dysfunction; Coronary Artery Disease; ECG and Echo Abnormalities in Patients with Atrial Fibrillation Risk Factors; Diabetes and Endocrine Disorders; Obesity and Metabolic Syndrome in Atrial Fibrillation; Renal Disease; Sleep Apnea and Atrial Fibrillation; Channelopathies in Atrial Fibrillation; Implications of Inflammation and Myocardial Fibrosis in Atrial Fibrillation; Role of Biomarkers in Atrial Fibrillation; Left Ventricular Hypertrophy and Other Cardiomyopathies in Atrial Fibrillation; Atrial Fibrillation in Valvular Heart Disease; Atrial Fibrillation in Adult Congenital Heart Disease; Exercise and Athletic Activity in Atrial Fibrillation; Post-op Atrial Fibrillation; Autonomic Dysfunction and Neurohormonal Disorders in Atrial Fibrillation; Social Risk Factors; Atrial Fibrillation and Stroke; Screening for Atrial Fibrillation Risk Factors; Primary Care and Internists Perspective on Atrial Fibrillation Risk Factors; and Lifestyle as a Risk Factor for Atrial Fibrillation.
Author: Sánchez Arciniegas, Jorge Patricio Publisher: KIT Scientific Publishing ISBN: 3731511703 Category : Medical Languages : en Pages : 162
Book Description
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.
Author: Praneet Mylavarapu Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
Atrial fibrillation (AFib) is associated with a significant risk of thromboembolism and stroke, but this risk is not distributed homogeneously. Various risk factors have been identified and aggregated into risk stratification scores. The goal of these risk scores has been to guide anticoagulation therapy. Given the risk of stroke if left undertreated, and significant risk of critical bleed if unnecessarily anticoagulated, it is imperative to accurately determine stroke risk in patients with AFib. While the CHADS2Vasc score better identifies very low risk patients compared to CHADS2, neither system is particularly accurate in predicting stroke risk (c-stat 0.647 and 0.637 respectively). The strength of ANNs is in their ability to reliably identify patterns that may not be intuitive at first glance when designing rigid models. Since current prognostic models for stroke risk in AFib rely on poorly fit logistic regression of cohort data, and randomized clinical trials are infeasible given standard of care, using an ANN to further optimize stroke risk stratification in patients with AFib may be our best opportunity to improve clinical decision making
Author: Sabine Attinger Publisher: Springer Science & Business Media ISBN: 9783540211808 Category : Mathematics Languages : en Pages : 304
Book Description
In August 2003, ETHZ Computational Laboratory (CoLab), together with the Swiss Center for Scientific Computing in Manno and the Università della Svizzera Italiana (USI), organized the Summer School in "Multiscale Modelling and Simulation" in Lugano, Switzerland. This summer school brought together experts in different disciplines to exchange ideas on how to link methodologies on different scales. Relevant examples of practical interest include: structural analysis of materials, flow through porous media, turbulent transport in high Reynolds number flows, large-scale molecular dynamic simulations, ab-initio physics and chemistry, and a multitude of others. Though multiple scale models are not new, the topic has recently taken on a new sense of urgency. A number of hybrid approaches are now created in which ideas coming from distinct disciplines or modelling approaches are unified to produce new and computationally efficient techniques.
Author: Panicos A. Kyriacou Publisher: Academic Press ISBN: 012823525X Category : Technology & Engineering Languages : en Pages : 508
Book Description
Photoplethysmography: Technology, Signal Analysis, and Applications is the first comprehensive volume on the theory, principles, and technology (sensors and electronics) of photoplethysmography (PPG). It provides a detailed description of the current state-of-the-art technologies/optical components enabling the extreme miniaturization of such sensors, as well as comprehensive coverage of PPG signal analysis techniques including machine learning and artificial intelligence. The book also outlines the huge range of PPG applications in healthcare, with a strong focus on the contribution of PPG in wearable sensors and PPG for cardiovascular assessment. Presents the underlying principles and technology surrounding PPG Includes applications for healthcare and wellbeing Focuses on PPG in wearable sensors and devices Presents advanced signal analysis techniques Includes cutting-edge research, applications and future directions
Author: Maria S. Guillem Publisher: Frontiers Media SA ISBN: 2889636712 Category : Languages : en Pages : 178
Book Description
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
Author: Nagel, Claudia
Author: Nagel, Claudia
Author: J.S. Birks
Author: Mathias Wilhelms
Author: Mohammad Shenasa
Author: Mohammad Shenasa
Author: Sánchez Arciniegas, Jorge Patricio
Author: Praneet Mylavarapu
Author: Sabine Attinger
Author: Panicos A. Kyriacou
Author: Maria S. Guillem