magnetic resonance imaging physical principles and applications electromagnetism

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Magnetic Resonance Imaging

Author : Vadim Kuperman
ISBN : 9780080535708
Genre : Technology & Engineering
File Size : 39. 91 MB
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This book is intended as a text/reference for students, researchers, and professors interested in physical and biomedical applications of Magnetic Resonance Imaging (MRI). Both the theoretical and practical aspects of MRI are emphasized. The book begins with a comprehensive discussion of the Nuclear Magnetic Resonance (NMR) phenomenon based on quantum mechanics and the classical theory of electromagnetism. The first three chapters of this book provide the foundation needed to understand the basic characteristics of MR images, e.g.,image contrast, spatial resolution, signal-to-noise ratio, common image artifacts. Then MRI applications are considered in the following five chapters. Both the theoretical and practical aspects of MRI are emphasized. The book ends with a discussion of instrumentation and the principles of signal detection in MRI. Clear progression from fundamental physical principles of NMR to MRI and its applications Extensive discussion of image acquisition and reconstruction of MRI Discussion of different mechanisms of MR image contrast Mathematical derivation of the signal-to-noise dependence on basic MR imaging parameters as well as field strength In-depth consideration of artifacts in MR images Comprehensive discussion of several techniques used for rapid MR imaging including rapid gradient-echo imaging, echo-planar imaging, fast spin-echo imaging and spiral imaging Qualitative discussion combined with mathematical description of MR techniques for imaging flow

Electromagnetics In Magnetic Resonance Imaging

Author : Christopher M. Collins
ISBN : 9781681741475
Genre : Medical
File Size : 42. 81 MB
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In the past few decades, Magnetic Resonance Imaging (MRI) has become an indispensable tool in modern medicine, with MRI systems now available at every major hospital in the developed world. But for all its utility and prevalence, it is much less commonly understood and less readily explained than other common medical imaging techniques. Unlike optical, ultrasonic, X-ray (including CT), and nuclear medicine-based imaging, MRI does not rely primarily on simple transmission and/or reflection of energy, and the highest achievable resolution in MRI is orders of magnitude smaller that the smallest wavelength involved. In this book, MRI will be explained with emphasis on the magnetic fields required, their generation, their concomitant electric fields, the various interactions of all these fields with the subject being imaged, and the implications of these interactions to image quality and patient safety. Classical electromagnetics will be used to describe aspects from the fundamental phenomenon of nuclear precession through signal detection and MRI safety. Simple explanations and Illustrations combined with pertinent equations are designed to help the reader rapidly gain a fundamental understanding and an appreciation of this technology as it is used today, as well as ongoing advances that will increase its value in the future. Numerous references are included to facilitate further study with an emphasis on areas most directly related to electromagnetics.

Magnetic Resonance Imaging

Author : Robert W. Brown
ISBN : 9781118633977
Genre : Medical
File Size : 87. 36 MB
Format : PDF
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New edition explores contemporary MRI principles and practices Thoroughly revised, updated and expanded, the second edition of Magnetic Resonance Imaging: Physical Principles and Sequence Design remains the preeminent text in its field. Using consistent nomenclature and mathematical notations throughout all the chapters, this new edition carefully explains the physical principles of magnetic resonance imaging design and implementation. In addition, detailed figures and MR images enable readers to better grasp core concepts, methods, and applications. Magnetic Resonance Imaging, Second Edition begins with an introduction to fundamental principles, with coverage of magnetization, relaxation, quantum mechanics, signal detection and acquisition, Fourier imaging, image reconstruction, contrast, signal, and noise. The second part of the text explores MRI methods and applications, including fast imaging, water-fat separation, steady state gradient echo imaging, echo planar imaging, diffusion-weighted imaging, and induced magnetism. Lastly, the text discusses important hardware issues and parallel imaging. Readers familiar with the first edition will find much new material, including: New chapter dedicated to parallel imaging New sections examining off-resonance excitation principles, contrast optimization in fast steady-state incoherent imaging, and efficient lower-dimension analogues for discrete Fourier transforms in echo planar imaging applications Enhanced sections pertaining to Fourier transforms, filter effects on image resolution, and Bloch equation solutions when both rf pulse and slice select gradient fields are present Valuable improvements throughout with respect to equations, formulas, and text New and updated problems to test further the readers' grasp of core concepts Three appendices at the end of the text offer review material for basic electromagnetism and statistics as well as a list of acquisition parameters for the images in the book. Acclaimed by both students and instructors, the second edition of Magnetic Resonance Imaging offers the most comprehensive and approachable introduction to the physics and the applications of magnetic resonance imaging.

Biomagnetics

Author : Shoogo Ueno
ISBN : 9781482239218
Genre : Medical
File Size : 41. 61 MB
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Discover the Most Advanced Technologies in Biomagnetics Co-edited by Professor Ueno, a leader in the biomagnetics field for over 40 years, Biomagnetics: Principles and Applications of Biomagnetic Stimulation and Imaging explains the physical principles of biomagnetic stimulation and imaging and explores applications of the latest techniques in neuroscience, clinical medicine, and healthcare. The book shows you how the techniques are used in hospitals and why they are so promising. A brief overview of recent research trends in biomagnetics provides you with an up-to-date, informative guide to explore further in this field. The book focuses on three important areas: Magnetic nerve stimulation and transcranial magnetic stimulation Biomagnetic measurements and imaging of the human brain by advanced technologies of magnetoencephalography and MRI Biomagnetic approaches to potential treatments of cancers, pains, and other neurological and psychiatric diseases, such as Alzheimer’s disease and depression These core areas of the book were developed from the editors’ prestigious graduate-level courses in biomedical engineering. The text also discusses biomagnetic approaches to advanced medicine, including regenerative and rehabilitation medicine.

Magnetic Resonance Imaging E Book

Author : Stewart C. Bushong
ISBN : 9780323277655
Genre : Medical
File Size : 46. 30 MB
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Magnetic Resonance Imaging: Physical and Biological Principles, 4th Edition offers comprehensive, well-illustrated coverage on this specialized subject at a level that does not require an extensive background in math and physics. It covers the fundamentals and principles of conventional MRI along with the latest fast imaging techniques and their applications. Beginning with an overview of the fundamentals of electricity and magnetism (Part 1), Parts 2 and 3 present an in-depth explanation of how MRI works. The latest imaging methods are presented in Parts 4 and 5, and the final section (Part 6) covers personnel and patient safety and administration issues. This book is perfect for student radiographers and practicing technologists preparing to take the MRI advanced certification exam offered by the American Registry of Radiologic Technologists (ARRT). "I would recommend it to anyone starting their MRI training and anyone trying to teach MRI to others." Reviewed by RAD Magazine, June 2015 Challenge questions at the end of each chapter help you assess your comprehension. Chapter outlines and objectives assist you in following the hierarchy of material in the text. Penguin boxes highlight key points in the book to help you retain the most important information and concepts in the text. NEW! Two MRI practice exams that mirror the test items in each ARRT category have been added to the end of the text to help you replicate the ARRT exam experience. NEW! Chapter on Partially Parallel Magnetic Resonance Imaging increases the comprehensiveness of the text. NEW! Updated key terms have been added to each chapter with an updated glossary defining each term.

Magnetic Resonance Imaging

Author : Stewart C Bushong
ISBN : 9780323074087
Genre :
File Size : 44. 30 MB
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Magnetic Resonance Imaging: Physical and Biological Principles, 4th Edition offers comprehensive, well-illustrated coverage on this specialized subject at a level that does not require an extensive background in math and physics. It covers the fundamentals and principles of conventional MRI along with the latest fast imaging techniques and their applications. Beginning with an overview of the fundamentals of electricity and magnetism (Part 1), Parts 2 and 3 present an in-depth explanation of how MRI works. The latest imaging methods are presented in Parts 4 and 5, and the final section (Part 6) covers personnel and patient safety and administration issues. This book is perfect for student radiographers and practicing technologists preparing to take the MRI advanced certification exam offered by the American Registry of Radiologic Technologists (ARRT). ""I would recommend it to anyone starting their MRI training and anyone trying to teach MRI to others."" Reviewed by RAD Magazine, June 2015Challenge questions at the end of each chapter help you assess your comprehension.Chapter outlines and objectives assist you in following the hierarchy of material in the text."Penguin" boxes highlight key points in the book to help you retain the most important information and concepts in the text.NEW! Two MRI practice exams that mirror the test items in each ARRT category have been added to the end of the text to help you replicate the ARRT exam experience.NEW! Chapter on Partially Parallel Magnetic Resonance Imaging increases the comprehensiveness of the text.NEW! Updated key terms have been added to each chapter with an updated glossary defining each term.

Permanent Magnet And Electromechanical Devices

Author : Edward P. Furlani
ISBN : 9780080513690
Genre : Science
File Size : 61. 30 MB
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The book provides both the theoretical and the applied background needed to predict magnetic fields. The theoretical presentation is reinforced with over 60 solved examples of practical engineering applications such as the design of magnetic components like solenoids, which are electromagnetic coils that are moved by electric currents and activate other devices such as circuit breakers. Other design applications would be for permanent magnet structures such as bearings and couplings, which are hardware mechanisms used to fashion a temporary connection between two wires. This book is written for use as a text or reference by researchers, engineers, professors, and students engaged in the research, development, study, and manufacture of permanent magnets and electromechanical devices. It can serve as a primary or supplemental text for upper level courses in electrical engineering on electromagnetic theory, electronic and magnetic materials, and electromagnetic engineering.

Mathematical Models Of Hysteresis And Their Applications

Author : Isaak D. Mayergoyz
ISBN : 9780080535890
Genre : Science
File Size : 22. 94 MB
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This new edition has been significantly revised and updated to reflect advances in the field since the publication of the first edition, such as the systematic experimental testing of Preisach models of hysteresis. The author has, however, retained the two most salient features of the original, the emphasis on the universal nature of mathematical models of hysteresis and their applicability to the description of hysteresis phenomena in various areas of science, technology and economics and its accessibility to a broad audience of researchers, engineers, and students. · Provides a unique emphasis on the development of universal mathematical models of hysteresis · Accessibility to a broad audience, using simple and complex mathematical tools, application to various areas of science. · Presents new theoretical and experimental results

The Science Of Hysteresis Physical Modeling Micromagnetics And Magnetization Dynamics

Author : Giorgio Bertotti
ISBN : 0123694329
Genre : Hysteresis
File Size : 39. 8 MB
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This second volume of 'The Science of Hysteresis' covers physical models of magnetic hysteresis and related topics of magnetization dynamics. In this volume, random-field Ising models of hysteresis, Barkhausen effect (noise), thermodynamic, analytical, and numerical aspects of micromagnetics are presented.

The Science Of Hysteresis Mathematical Modeling And Applications

Author : Giorgio Bertotti
ISBN : 9780123694317
Genre : Hysteresis
File Size : 40. 64 MB
Format : PDF
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