Coronary Blood Flow
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The Physics Of Coronary Blood Flow
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Author : M. Zamir
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-06-18
The Physics Of Coronary Blood Flow written by M. Zamir 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 2006-06-18 with Science categories.
The fields of biological and medical physics and biomedical engineering are broad, multidisciplinary and dyanmic. They lie at the crossroads of frontier - search in physics, biology, chemistry, and medicine. The Biological & Me- cal Physics/Biomedical Engineering Series is intended to be comprehensive, covering a broad range of topics important to the study of the physical, che- cal and biological sciences. Its goal is to provide scientists and engineers with textbooks, monographs, and reference works to address the growing need for information. Books in the series emphasize established and emergent areas of science - cluding molecular, membrane, and mathematical biophysics; photosynthetic - ergy harvesting and conversion; information processing; physical principles of genetics; sensory communications; automata networks, neural networks, and cellular automata. Equally important will be coverage of applied aspects of b- logical and medical physics and biomedical engineering such as molecular el- tronic components and devices, biosensors, medicine, imaging, physical prin- ples of renewable energy production, advanced prostheses, and environmental control and engineering. Elias Greenbaum Oak Ridge, TN M. Zamir Department of Applied Mathematics University of Western Ontario London, Ontario, N6A 5B7 CANADA [email protected] Library of Congress Cataloging-in-Publication Data Zamir, M. (Mair) The physics of coronary blood flow / M. Zamir. p. cm. — (Biological and medical physics, biomedical engineering) Includes bibliographical references and index. 1. Coronary circulation. 2. Hemodynamics. 3. Blood flow. I. Title. II. Series. QP108.Z36 2005 612.1?7—dc22 2005042502 ISBN-10: 0-387-25297-5 e-ISBN: 0-387-26019-6 Printed on acid-free paper.
Coronary Circulation
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Author : Johnathan D. Tune
language : en
Publisher: Biota Publishing
Release Date : 2014-07-01
Coronary Circulation written by Johnathan D. Tune and has been published by Biota Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07-01 with Medical categories.
The coronary circulation is unique in that it is responsible for maintaining adequate oxygen and substrate delivery to the organ that generates the pressure needed to drive blood throughout the entire circulatory system. In the simplest terms, coronary blood flow is directly proportional to the arterial pressure gradient across the coronary vasculature and inversely proportional to coronary vascular resistance. However, myocardial perfusion is collectively regulated by a complex variety of mechanisms which include: (1) extravascular compressive forces; (2) diastolic time fraction; (3) coronary perfusion pressure; (4) myocardial metabolism (local metabolic factors); (5) endothelial-derived substances; (6) neuro-humoral influences; and (7) arterial oxygen tension and content. This book considers each of these determinants with particular emphasis on the functional interaction between the physical and biological determinants of myocardial perfusion. Pathophysiologic aspects of coronary atherosclerosis and cardiovascular disease states are also considered. Table of Contents: Abbreviations / Acknowledgments / Introduction / Basic Coronary Anatomy / Myocardial-Coronary Interaction / Arterial Pressure and Autoregulation / Local Metabolic Control / Endothelial-Dependent Control / Neural Activation and Circulating Hormones / Coronary Stenosis, Myocardial Ischemia, and Effects of Disease / Summary / Reference List / Author Biography
Regulation Of Coronary Blood Flow
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Author : Michitoshi Inoue
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-09
Regulation Of Coronary Blood Flow written by Michitoshi Inoue 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 2013-11-09 with Medical categories.
Research centering on blood flow in the heart continues to hold an important position, especially since a better understanding of the subject may help reduce the incidence of coronary arterial disease and heart attacks. This book summarizes recent advances in the field; it is the product of fruitful cooperation among international scientists who met in Japan in May, 1990 to discuss the regulation of coronary blood flow.
Coronary Circulation
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Author : Fumihiko Kajiya
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Coronary Circulation written by Fumihiko Kajiya 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 2012-12-06 with Medical categories.
Coronary heart disease is one of the major health problems in indus trialized nations because of its high incidence and severity. Recent innovations in medical and surgical treatment of coronary heart dis ease have increased the importance of accurate diagnostic methods for determining the severity of coronary disease, identifying potential treatment alternatives, and evaluating the results of treatment. Great advances have also been made in basic research on coronary circula tion and its interaction with myocardial contraction and relaxation and neural and humoral control. With respect to these developments, the papers included in the present monograph deal with important topics concerned with the basic mechanism of coronary circulation as well as ones of clinical relevance. It is directed toward physicians (cardiologists, cardiac surgeons, cardiac radiologists, anestheologists, and others) and basic scientists (e.g., physiologists, bioengineers). We would like to em phasize the importance of a multidisciplinary approach in which basic scientists and clinicians work closely together. This volume consists of nine chapters. Chapter 1 contains macro scopic and microscopic descriptions of coronary vascular anatomy, which is closely related to the functions of coronary circulation. In Chap. 2 two methods in current use to evaluate phasic coronary blood velocity waveforms are presented, i.e., the laser Doppler and ultrasound Doppler methods. Chapter 3 describes the mechanical properties of coronary circulation, a knowledge of which is indispens able for an understanding of coronary arterial and venous blood flow velocity waveforms in relation to cardiac contraction and relaxation.
The Coronary Circulation In Health And Disease
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Author : Melvin L. Marcus
language : en
Publisher: McGraw-Hill Companies
Release Date : 1983
The Coronary Circulation In Health And Disease written by Melvin L. Marcus and has been published by McGraw-Hill Companies this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Medical categories.
The Coronary Artery
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Author : Stanley Kalsner
language : en
Publisher: Oxford University Press, USA
Release Date : 1982
The Coronary Artery written by Stanley Kalsner and has been published by Oxford University Press, USA this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Medical categories.
Coronary Blood Flow
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Author : J.A. Spaan
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Coronary Blood Flow written by J.A. Spaan 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 2012-12-06 with Medical categories.
by JULIEN IE HOFFMAN One of the earliest coronary physiologists was Scaramucci who, in 1695, postu lated that during systole the contracting myocardium inhibited coronary blood flow. Since then, the many contributions that have been made to our knowledge of the coronary circulation can be arbitrarily divided into three phases based on advances in technical methods. The early phase of research into the coronary circulation, done with great difficulty with crude methods, may be regarded as ending in the 1940s, and it included major discoveries made by such well known investigators as Georg von Anrep, Ernest Starling, Carl Wiggers, and Louis Katz, who formulated much of our basic understanding of the field. After 1940, the field of coronary physiology entered a new phase when instruments for high fidelity registration of coronary flow and pressure became available. This era was domi nated by Donald Gregg who combined careful attention to the function of these instruments (some of which he helped to develop) with an extraordinary ability to discern mechanisms from apparently minor changes in coronary flow and pressure patterns. His book 'The Coronary Circulation in Health and Disease' set a new standard in the field. After 1960, techniques for measuring regional myocardial blood flow became available, and enabled a large group of eminent investigators to make major advances in understanding the physiology and pathophysiology of myocardial blood flow.
Coronary Circulation And Myocardial Ischemia
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Author : Michael R. Pinsky
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Coronary Circulation And Myocardial Ischemia written by Michael R. Pinsky 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 2012-12-06 with Medical categories.
The coronary circulation is central to sustaining myocardial viability. Unlike the cir culations of most other organs, if the coronary circulation becomes insufficient to sustain myocardial contractile function, overall quality of life rapidly declines and life can abruptly end. In partnership with the cerebral circulation, the coronary circula tion plays a central role in sustaining life. However, unlike the cerebral circulation, whose function is self-sufficient to define life, the coronary circulation determines global blood flow and thus the initial state for the remainder of the body. This unique condition, together with the reality that coronary artery disease primarily affects peo ple in their productive years of life, has allowed physicians and scientists who study the heart to enjoy a privileged position in the field of medical research and clinical practice. Thus, it comes as little surprise that many new and exciting research developments involving the coronary circulation have recently come to the forefront of medical thinking. This reality, coupled with the large number of clinical trials of agents specif ically designed to sustain or improve coronary flow in many disease states, makes the timing of this monograph relevant. The book features papers presented at a recent international symposium, the fourth in a series of meetings on Applied Physiology of the Peripheral Circulation. The papers selected by the editors review the most impor tant advances in the fields of cardiology and the coronary circulation.
Coronary Blood Flow
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Author : Jos Spaan
language : en
Publisher: Springer
Release Date : 2011-09-30
Coronary Blood Flow written by Jos Spaan and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-09-30 with Medical categories.
by JULIEN IE HOFFMAN One of the earliest coronary physiologists was Scaramucci who, in 1695, postu lated that during systole the contracting myocardium inhibited coronary blood flow. Since then, the many contributions that have been made to our knowledge of the coronary circulation can be arbitrarily divided into three phases based on advances in technical methods. The early phase of research into the coronary circulation, done with great difficulty with crude methods, may be regarded as ending in the 1940s, and it included major discoveries made by such well known investigators as Georg von Anrep, Ernest Starling, Carl Wiggers, and Louis Katz, who formulated much of our basic understanding of the field. After 1940, the field of coronary physiology entered a new phase when instruments for high fidelity registration of coronary flow and pressure became available. This era was domi nated by Donald Gregg who combined careful attention to the function of these instruments (some of which he helped to develop) with an extraordinary ability to discern mechanisms from apparently minor changes in coronary flow and pressure patterns. His book 'The Coronary Circulation in Health and Disease' set a new standard in the field. After 1960, techniques for measuring regional myocardial blood flow became available, and enabled a large group of eminent investigators to make major advances in understanding the physiology and pathophysiology of myocardial blood flow.
An Untold Medical Story Coronary Blood Flow Heart Attack Prediction Prevention And Treatment
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Author : Gunnar Sevelius M. D.
language : en
Publisher: AuthorHouse
Release Date : 2011-04
An Untold Medical Story Coronary Blood Flow Heart Attack Prediction Prevention And Treatment written by Gunnar Sevelius M. D. and has been published by AuthorHouse this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-04 with Health & Fitness categories.
The book describes Dr. Sevelius' long career as medical scientist, pursuing specifically what can be learned from a radiocardiogram (RCG), the recording through the skin of the heart flow, the cardiac output (CO), the most fundamental of all body functions. The RCG has been slow in acceptance in clinical medicine. One worry has been the radiation. The radiation is approximately one-third that of a chest x-ray and should be of minor concern with proper education. Another difficulty is how to interpret the results. Other techniques for CO measurements have had similar problems, not because the techniques were wrong but because the interpretation was based on wrong premises with too wide a standard deviation for proper diagnosis in clinical work. Dr. Sevelius introduces two new assessments: hemodynamic and metabolic. With these interpretations the heart as a pump is first judged according to the size of simultaneously measured blood volume it has to pump and second, separately, as to how large a body the heart has to supply with oxygen. The hemodynamic evaluation of the heart flow is found to be a good predictor to a within six-month pending heart attack. This would make the RCG an exceptionally simple and useful tool for diagnosis in clinical medicine. This book collects Dr. Sevelius' work in digital format to make it easily available. It is Dr. Sevelius' hope that his work will inspire some young scientists to follow up his work because of its wide application in modern medicine.