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Numerical And Experimental Investigations Of Pulsatile Blood Flow Through A Dysfunctional Mechanical Heart Valve
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Book Synopsis Numerical and Experimental Investigations of Pulsatile Blood Flow Through a Dysfunctional Mechanical Heart Valve by : Othman Ahmed Smadi
Download or read book Numerical and Experimental Investigations of Pulsatile Blood Flow Through a Dysfunctional Mechanical Heart Valve written by Othman Ahmed Smadi and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulation of Pulsatile Blood Flow Across a Tilting-disk Mechanical Heart Valve by : Alireza Nejadmalayeri
Download or read book Numerical Simulation of Pulsatile Blood Flow Across a Tilting-disk Mechanical Heart Valve written by Alireza Nejadmalayeri and published by . This book was released on 2007 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: To overcome several clinical challenges involving mechanical heart valves, accurate numerical simulation of blood flow through these devices has been of interest. Since heart disease is the leading cause of death around the world, the hemodynamic study of the heart is of extraordinary interest in the field of bio fluid dynamics. Recent numerical/experimental investigations have shown that mechanical heart valves inherit the "production of sufficiently large shear and turbulent stresses to cause clinical problems such as hemolysis." Due to several parameters including the non-Newtonian behavior of blood, pulsatile waveform, strong blood and tissue interactions, clinical difficulties, etc., experimental examination of blood flow in the heart and its valves is a very difficult task. Therefore, comprehensive numerical analysis of this complex fluid-structure system is essential. However, precise experimental investigations are still imperative for developing appropriate and accurate turbulence models and for validating numerical techniques.In the current computational effort, the first set of objectives was numerical investigations of vortex shedding behind a two-dimensional tilting-disk mechanical heart valve in a straight channel, which is a simplified representation of the mitral position, using first- and several higher-order finite volume schemes as well as examination of the non-Newtonian viscosity effects on shedding frequency and amplitude.
Book Synopsis On the Fluid Dynamics of Prosthetic Heart Valve Flow by : T. J. Mueller
Download or read book On the Fluid Dynamics of Prosthetic Heart Valve Flow written by T. J. Mueller and published by . This book was released on 1974 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical and Experimental Study of Pulsatile Flow in Bi-leaflet Mechanical Heart Valves by : Yubing Shi
Download or read book Numerical and Experimental Study of Pulsatile Flow in Bi-leaflet Mechanical Heart Valves written by Yubing Shi and published by . This book was released on 2002 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modelling of Blood Flow Through Mechanical Heart Valves Using Large Eddy Simulation [microform] by : Masroor Mansoor Chaudhri
Download or read book Modelling of Blood Flow Through Mechanical Heart Valves Using Large Eddy Simulation [microform] written by Masroor Mansoor Chaudhri and published by Library and Archives Canada = Bibliothèque et Archives Canada. This book was released on 2004 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: A majority of heart valve replacement procedures use bi-leaflet mechanical heart valves (MHV). Although these valves function adequately, they require constant anticoagulant therapy to prevent thrombus (clot) formation. Thrombus formation is primarily due to platelet activation, which is caused by nonphysiological flow conditions through MHVs. Blood flow in MHVs can be turbulent, and thus there is a need to better understand both laminar and turbulent flow through MHVs. In this work, a code for the solution of the two-dimensional Navier-Stokes equations has been extended to include the Streamline Upwind/Petrov Galerkin (SUPG) method and Large Eddy Simulation (LES) for modelling turbulent flows using the constant co-efficient Smagorinsky model. Different numerical tests have been performed to evaluate the validity of the numerical code. Results from the unsteady turbulent simulation agree qualitatively with computational and experimental studies, indicating that turbulence affects the flow field in the vicinity of the heart valve and should be addressed when modelling blood flow in MHVs.
Book Synopsis Computational And Mathematical Methods In Cardiovascular Physiology by : Liang Zhong
Download or read book Computational And Mathematical Methods In Cardiovascular Physiology written by Liang Zhong and published by World Scientific. This book was released on 2019-04-26 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cardiovascular diseases (CVD) including heart diseases, peripheral vascular disease and heart failure, account for one-third of deaths throughout the world. CVD risk factors include systolic blood pressure, total cholesterol, high-density lipoprotein cholesterol, and diabetic status. Clinical trials have demonstrated that when modifiable risk factors are treated and corrected, the chances of CVD occurring can be reduced. This illustrates the importance of this book's elaborate coverage of cardiovascular physiology by the application of mathematical and computational methods.This book has literally transformed Cardiovascular Physiology into a STEM discipline, involving (i) quantitative formulations of heart anatomy and physiology, (ii) technologies for imaging the heart and blood vessels, (iii) coronary stenosis hemodynamics measure by means of fractional flow reserve and intervention by grafting and stenting, (iv) fluid mechanics and computational analysis of blood flow in the heart, aorta and coronary arteries, and (v) design of heart valves, percutaneous valve stents, and ventricular assist devices.So how is this mathematically and computationally configured landscape going to impact cardiology and even cardiac surgery? We are now entering a new era of mathematical formulations of anatomy and physiology, leading to technological formulations of medical and surgical procedures towards more precise medicine and surgery. This will entail reformatting of (i) the medical MD curriculum and courses, so as to educate and train a new generation of physicians who are conversant with medical technologies for applying into clinical care, as well as (ii) structuring of MD-PhD (Computational Medicine and Surgery) Program, to train competent medical and surgical specialists in precision medical care and patient-specific surgical care.This book provides a gateway for this new emerging scenario of (i) science and engineering based medical educational curriculum, and (ii) technologically oriented medical and surgical procedures. As such, this book can be usefully employed as a textbook for courses in (i) cardiovascular physiology in both the schools of engineering and medicine of universities, as well as (ii) cardiovascular engineering in biomedical engineering departments worldwide.
Book Synopsis Vortex Formation in the Cardiovascular System by : Arash Kheradvar
Download or read book Vortex Formation in the Cardiovascular System written by Arash Kheradvar and published by Springer Science & Business Media. This book was released on 2012-02-01 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vortex Formation in the Cardiovascular System will recapitulate the current knowledge about the vortex formation in the cardiovascular system, from mechanics to cardiology. This can facilitate the interaction between basic scientists and clinicians on the topic of the circulatory system. The book begins with a synopsis of the fundamentals aspects of fluid mechanics to give the reader the essential background to address the proceeding chapters. Then the fundamental elements of vortex dynamics will be discussed, explaining the conditions for their formation and the rules governing their dynamics. The main equations are accompanied by mathematical models. Cardiovascular vortex formation is first analyzed in physiological, healthy conditions in the heart chambers and in the large arterial vessels. The analysis is initially presented with an intuitive appeal grounded on the physical phenomena and a focus on its clinical significance.In the proceeding chapters, the knowledge gained from either clinical or basic science literature will be discussed. The corresponding mathematical elements will finally be presented to ensure the adequate diligence. The proceeding chapters ensue to the analysis of pathological conditions, when the reader may have developed the ability to recognize normal from abnormal vortex formation phenomenon. Pathological vortex formation represents vortices that develop at sites where normally laminar flow should exist, e.g. stenosis and aneurisms. This analysis naturally leads to the interaction of vortices due to the surgical procedures with respect to prediction of changes in vortex formation. The existing techniques, from medical imaging to numerical simulations, to explore vortex flows in the cardiovascular systems will also be described. The presentations are accompanied by the mathematical definitions can that be understandable for reader without the advanced mathematical background, while an interested reader with more advanced knowledge in mathematics can be referred to references for further quantitative analyses. The book pursues the objective to transfer the fundamental vortex formation phenomena with application to the cardiovascular system to the reader. This book will be a valuable support for physicians in the evaluation of vortex influence on diagnosis and therapeutic choices. At the same time, the book will provide the rigorous information for research scientists, either from medicine and mechanics, working on the cardiovascular circulation incurring with the physics of vortex dynamics.
Book Synopsis Smart Flow Control Processes in Micro Scale Volume 2 by : Bengt Sunden
Download or read book Smart Flow Control Processes in Micro Scale Volume 2 written by Bengt Sunden and published by MDPI. This book was released on 2020-12-29 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, microfluidic devices with a large surface-to-volume ratio have witnessed rapid development, allowing them to be successfully utilized in many engineering applications. A smart control process has been proposed for many years, while many new innovations and enabling technologies have been developed for smart flow control, especially concerning “smart flow control” at the microscale. This Special Issue aims to highlight the current research trends related to this topic, presenting a collection of 33 papers from leading scholars in this field. Among these include studies and demonstrations of flow characteristics in pumps or valves as well as dynamic performance in roiling mill systems or jet systems to the optimal design of special components in smart control systems.
Book Synopsis PanVascular Medicine by : Peter Lanzer
Download or read book PanVascular Medicine written by Peter Lanzer and published by Springer. This book was released on 2015-03-30 with total page 5004 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vascular management and care has become a truly multidisciplinary enterprise as the number of specialists involved in the treatment of patients with vascular diseases has steadily increased. While in the past, treatments were delivered by individual specialists, in the twenty-first century a team approach is without doubt the most effective strategy. In order to promote professional excellence in this dynamic and rapidly evolving field, a shared knowledge base and interdisciplinary standards need to be established. Pan Vascular Medicine, 2nd edition has been designed to offer such an interdisciplinary platform, providing vascular specialists with state-of-the art descriptive and procedural knowledge. Basic science, diagnostics, and therapy are all comprehensively covered. In a series of succinct, clearly written chapters, renowned specialists introduce and comment on the current international guidelines and present up-to-date reviews of all aspects of vascular care.
Book Synopsis Principles of Heart Valve Engineering by : Arash Kheradvar
Download or read book Principles of Heart Valve Engineering written by Arash Kheradvar and published by Academic Press. This book was released on 2019-08-28 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Heart Valve Engineering is the first comprehensive resource for heart valve engineering that covers a wide range of topics, including biology, epidemiology, imaging and cardiovascular medicine. It focuses on valves, therapies, and how to develop safer and more durable artificial valves. The book is suitable for an interdisciplinary audience, with contributions from bioengineers and cardiologists that includes coverage of valvular and potential future developments. This book provides an opportunity for bioengineers to study all topics relating to heart valve engineering in a single book as written by subject matter experts. Covers the depth and breadth of this interdisciplinary area of research Encompasses a wide range of topics, from basic science, to the translational applications of heart valve engineering Contains contributions from leading experts in the field that are heavily illustrated
Book Synopsis Regulation of Coronary Blood Flow by : Michitoshi Inoue
Download or read book Regulation of Coronary Blood Flow written by Michitoshi Inoue and published by Springer Science & Business Media. This book was released on 2013-11-09 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Basic Physiology for Anaesthetists by : David Chambers
Download or read book Basic Physiology for Anaesthetists written by David Chambers and published by Cambridge University Press. This book was released on 2019-07-25 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: Easily understood, up-to-date and clinically relevant, this book provides junior anaesthetists with an essential physiology resource.
Book Synopsis Pattern Recognition by : Jesús Ariel Carrasco-Ochoa
Download or read book Pattern Recognition written by Jesús Ariel Carrasco-Ochoa and published by Springer. This book was released on 2019-06-19 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the 11th Mexican Conference on Pattern Recognition, MCPR 2019, held in Querétaro, Mexico, in June 2019. The 40 papers presented in this volume were carefully reviewed and selected from 86 submissions. They were organized in topical sections named: artificial intelligence techniques and recognition; computer vision; industrial and medical applications of pattern recognition; image processing and analysis; pattern recognition techniques; signal processing and analysis; natural language, and processing and recognition.
Book Synopsis Essential Clinical Anesthesia by : Charles Vacanti
Download or read book Essential Clinical Anesthesia written by Charles Vacanti and published by Cambridge University Press. This book was released on 2011-07-11 with total page 1191 pages. Available in PDF, EPUB and Kindle. Book excerpt: The clinical practice of anesthesia has undergone many advances in the past few years, making this the perfect time for a new state-of-the-art anesthesia textbook for practitioners and trainees. The goal of this book is to provide a modern, clinically focused textbook giving rapid access to comprehensive, succinct knowledge from experts in the field. All clinical topics of relevance to anesthesiology are organized into 29 sections consisting of more than 180 chapters. The print version contains 166 chapters that cover all of the essential clinical topics, while an additional 17 chapters on subjects of interest to the more advanced practitioner can be freely accessed at www.cambridge.org/vacanti. Newer techniques such as ultrasound nerve blocks, robotic surgery and transesophageal echocardiography are included, and numerous illustrations and tables assist the reader in rapidly assimilating key information. This authoritative text is edited by distinguished Harvard Medical School faculty, with contributors from many of the leading academic anesthesiology departments in the United States and an introduction from Dr S. R. Mallampati. This book is your essential companion when preparing for board review and recertification exams and in your daily clinical practice.
Book Synopsis The Artificial Heart by : Institute of Medicine
Download or read book The Artificial Heart written by Institute of Medicine and published by National Academies Press. This book was released on 1991-02-01 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: A significant medical event is expected in 1992: the first human use of a fully implantable, long-term cardiac assist device. This timely volume reviews the artificial heart program-and in particular, the National Institutes of Health's major investment-raising important questions. The volume includes: Consideration of the artificial heart versus heart transplantation and other approaches to treating end-stage heart disease, keeping in mind the different outcomes and costs of these treatments. A look at human issues, including the number of people who may require the artificial heart, patient quality of life, and other ethical and societal questions. Examination of how this technology's use can be targeted most appropriately. Attention to achieving access to this technology for all those who can benefit from it. The committee also offers three mechanisms to aid in allocating research and development funds.
Book Synopsis Basic Sciences for MCEM by : Chetan Trivedy
Download or read book Basic Sciences for MCEM written by Chetan Trivedy and published by CRC Press. This book was released on 2016-05-15 with total page 771 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a dedicated resource for those sitting the Part A of the MCEM (Membership of the College of Emergency Medicine) examination. It forms an essential revision guide for emergency trainees who need to acquire a broad understanding of the basic sciences, which underpin their approach to clinical problems in the emergency department. Common clinical scenarios are used to highlight the essential underlying basic science principles, providing a link between clinical management and a knowledge of the underlying anatomical, physiological, pathological and biochemical processes. Multiple choice questions with reasoned answers are used to confirm the candidates understanding and for self testing. Unlike other recent revision books which provide MCQ questions with extended answers, this book uses clinical cases linked to the most recent basic science aspects of the CEM syllabus to provide a book that not only serves as a useful revision resource for the Part A component of the MCEM examination, but also a unique way of understanding the processes underlying common clinical cases seen every day in the emergency department. This book is essential for trainees sitting the Part A of the MCEM exam and for clinicians and medical students who need to refresh their knowledge of basic sciences relevant to the management of clinical emergencies.
Book Synopsis Issues in Bioengineering and Bioinformatics: 2013 Edition by :
Download or read book Issues in Bioengineering and Bioinformatics: 2013 Edition written by and published by ScholarlyEditions. This book was released on 2013-05-01 with total page 1156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Bioengineering and Bioinformatics: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Lifetime Data Analysis. The editors have built Issues in Bioengineering and Bioinformatics: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Lifetime Data Analysis in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Bioengineering and Bioinformatics: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
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