Electrocardiographic Imaging
Electrocardiographic Imaging

Author: Maria S. Guillem

Publisher: Frontiers Media SA

Published: 2020-04-17

Total Pages: 178

ISBN-13: 2889636712

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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

Electrocardiography in Ischemic Heart Disease
Electrocardiography in Ischemic Heart Disease

Author: Antoni Bayés de Luna

Publisher: John Wiley & Sons

Published: 2008-04-30

Total Pages: 354

ISBN-13: 9780470695494

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The ECG is a fundamental diagnostic tool in cardiology, allowingaccurate diagnosis and monitoring of acute and chronic ischemicheart disease. In this most comprehensive book of its kind,internationally renowned authors correlate electrocardiographicrecordings with anatomical patterns of myocardial ischemia toimprove the diagnosis and management of patients with ischemicheart disease. The book is structured in two sections. Part One coverselectrocardiographic patterns of ischemia, injury andinfarction. • Each chapter discusses a different ECG abnormality inturn, clearly explaining the ischemic insults andelectrophysiological mechanisms underlying each pattern to promoterapid and accurate interpretation of the ECG in the clinicalsetting. • ECG abnormalities are correlated with myocardial anatomyand coronary angiography to produce a series of practicaldiagnostic algorithms that allow the clinician to identify not onlythe occluded artery but the precise location of the occlusionwithin the artery, facilitating appropriate therapeuticdecisions. • The authors also propose a new classification of Q-wavemyocardial infarctions based on imaging correlations with advancedtechniques such as contrast-enhanced cardiac magneticresonance. Part Two of the book covers the ECG in clinical practice. Eachchapter focuses on a different clinical syndrome, describing therole of the ECG in a global approach to the diagnosis, prognosisand risk stratification of patients with acute and chronic ischemicheart disease and guiding clinical decision-making. Extensively referenced and illustrated throughout, this book ishighly recommended for any clinician involved in the diagnosis andmanagement of ischemic heart disease.

Contributions to the Methodology of Electrocardiographic Imaging (ECGI) and Application of ECGI to Study Mechanisms of Atrial Arrhythmia, Post Myocardial Infarction Electrophysiological Substrate, and Ventricular Tachycardia in Patients
Contributions to the Methodology of Electrocardiographic Imaging (ECGI) and Application of ECGI to Study Mechanisms of Atrial Arrhythmia, Post Myocardial Infarction Electrophysiological Substrate, and Ventricular Tachycardia in Patients

Author: Yong Wang

Publisher:

Published: 2009

Total Pages: 0

ISBN-13:

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The spatial accuracy in determining initiation sites as simulated by atrial pacing was ä 6mm. ECGI imaged many activation patterns of commonly multiple wavelets (92%), with pulmonary vein (69%) and non-pulmonary vein (62%) trigger sites. Rotor activity was seen rarely (15%). AF complexity increased with longer clinical history of AF, though the degree of complexity of nonparoxysmal AF varied and overlapped. ECGI offers a way to identify unique epicardial activation patterns of AF in a patient-specific manner. The results are consistent with contemporary animal models of AF mechanisms and highlight the coexistence of a variety of mechanisms among patients.

Mathematics and Physics of Emerging Biomedical Imaging
Mathematics and Physics of Emerging Biomedical Imaging

Author: Committee on the Mathematics and Physics of Emerging Dynamic Biomedical Imaging

Publisher: National Academies Press

Published: 1996-03-13

Total Pages: 261

ISBN-13: 0309552923

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This cross-disciplinary book documents the key research challenges in the mathematical sciences and physics that could enable the economical development of novel biomedical imaging devices. It is hoped that the infusion of new insights from mathematical scientists and physicists will accelerate progress in imaging. Incorporating input from dozens of biomedical researchers who described what they perceived as key open problems of imaging that are amenable to attack by mathematical scientists and physicists, this book introduces the frontiers of biomedical imaging, especially the imaging of dynamic physiological functions, to the educated nonspecialist. Ten imaging modalities are covered, from the well-established (e.g., CAT scanning, MRI) to the more speculative (e.g., electrical and magnetic source imaging). For each modality, mathematics and physics research challenges are identified and a short list of suggested reading offered. Two additional chapters offer visions of the next generation of surgical and interventional techniques and of image processing. A final chapter provides an overview of mathematical issues that cut across the various modalities.

Electrocardiography in Ischemic Heart Disease
Electrocardiography in Ischemic Heart Disease

Author: Miguel Fiol-Sala

Publisher: John Wiley & Sons

Published: 2019-10-16

Total Pages: 432

ISBN-13: 1119422299

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A fresh assessment of ischemic electrocardiography, its prognostic correlations, and the concepts and principles that underlie its use The electrocardiogram (ECG) is integral to the accurate diagnosis and optimal management of patients with ischemic heart disease. Picking up a wide range of indicators, it provides valuable prognostic data to cardiologists and emergency medicine specialists for whom ECG readings are a trusted and everyday resource. Electrocardiography in Ischemic Heart Disease is designed to help enhance such clinicians' understanding of ECG recordings and their relationship to anatomical patterns of myocardial ischemia, thereby facilitating the continued improvement of patient care. For this new edition, the book's globally recognized team of authors has revised and expanded the original text to bring it up to date with the cardiology of today. Practical explanations of electrophysiological mechanisms, ischemic insults, and arterial occlusions are placed in the context of the ECG's day-to-day use, while full-color images illustrate core concepts in a vivid and instructive manner. This essential guide: Demonstrates correlations between ECG recordings and anatomical patterns of myocardial ischemia Covers STEMI, special forms of NSTEMI, and Q waves Describes electrocardiographic patterns of ischemia, injury, and infarction Includes full-color images Explores advanced techniques such as contrast-enhanced cardiac magnetic resonance Electrocardiography in Ischemic Heart Disease is an indispensable resource for both trainee and practicing cardiologists, emergency medicine physicians, and any clinicians involved in the diagnosis and management of ischemic heart disease.

Cardiology Explained
Cardiology Explained

Author: Euan A. Ashley

Publisher: Remedica

Published: 2004

Total Pages: 258

ISBN-13: 1901346226

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One of the most time-consuming tasks in clinical medicine is seeking the opinions of specialist colleagues. There is a pressure not only to make referrals appropriate but also to summarize the case in the language of the specialist. This book explains basic physiologic and pathophysiologic mechanisms of cardiovascular disease in a straightforward manner, gives guidelines as to when referral is appropriate, and, uniquely, explains what the specialist is likely to do. It is ideal for any hospital doctor, generalist, or even senior medical student who may need a cardiology opinion, or for that ma.

Electrocardiogram in Clinical Medicine
Electrocardiogram in Clinical Medicine

Author: Michael J. Lipinski

Publisher: John Wiley & Sons

Published: 2020-12-07

Total Pages: 510

ISBN-13: 1118754557

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Offers a guide for a complete understanding of the disease and conditions most frequently revealed in ECGs recorded in the acute, critical, and emergency care settings Electrocardiogram in Clinical Medicine offers an authoritative guide to ECG interpretation that contains a focus and perspective from each of the three primary areas of medical care: acute care, critical care and emergency care. It can be used as a companion with the book ECGs for the Emergency Physician I & II (by Mattu and Brady) or as a stand-alone text. These three books can be described as a cumulative EGG reference for the medical provider who uses the electrocardiogram on a regular basis. Electrocardiogram in Clinical Medicine includes sections on all primary areas of ECG interpretation and application as well as sections that highlight use, devices and strategies. The medical content covers acute coronary syndromes and all related issues, other diseases of the myocardium, morphologic syndromes, toxicology and paediatrics; dysrhythmias will also be covered in detail. This important resource: • Goes beyond pattern recognition in ECGs to offer a real understanding of the clinical syndromes evidenced in ECGs and implications for treatment • Covers the indications, advantages and pitfalls of the use of ECGs for diagnosis in all acute care settings, from EMS to ED to Critical Care • Examines the ECG in toxic, metabolic and environmental presentations; critical information for acute care clinicians who need to be able to differentiate ODs, poisoning and other environmental causes from MI or other cardiac events • Facilitates clinical decision-making Written for practicing ER, general medicine, family practice, hospitalist and ICU physicians and medical students, Electrocardiogram in Clinical Medicine is an important book for the accurate interpretation of EGG results.

Frontiers in Noninvasive Cardiac Mapping, An Issue of Cardiac Electrophysiology Clinics
Frontiers in Noninvasive Cardiac Mapping, An Issue of Cardiac Electrophysiology Clinics

Author: Ashok Shah

Publisher: Elsevier Health Sciences

Published: 2015-04-07

Total Pages: 185

ISBN-13: 0323356745

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This issue of Cardiac Electrophysiology Clinics examines Frontiers in Non-invasive Cardiac Mapping. Topics include imaging of heart rhythm disorders, experimental validation and modeling of validation, challenges and future directions of inverse problems, phase mapping of cardiac fibrillation, frequency domain analysis, analysis of diagnostic 12-lead electrocardiography and 3D non-invasive mapping, and many more.