RF Coils for MRI


Author: J. Thomas Vaughan,John R. Griffiths
Publisher: John Wiley & Sons
ISBN: 1118590457
Category: Medical
Page: 456
View: 2331

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The content of this volume has been added to eMagRes (formerly Encyclopedia of Magnetic Resonance) - the ultimate online resource for NMR and MRI. To date there is no single reference aimed at teaching the art of applications guided coil design for use in MRI. This RF Coils for MRI handbook is intended to become this reference. Heretofore, much of the know-how of RF coil design is bottled up in various industry and academic laboratories around the world. Some of this information on coil technologies and applications techniques has been disseminated through the literature, while more of this knowledge has been withheld for competitive or proprietary advantage. Of the published works, the record of technology development is often incomplete and misleading, accurate referencing and attribution assignment being tantamount to admission of patent infringement in the commercial arena. Accordingly, the literature on RF coil design is fragmented and confusing. There are no texts and few courses offered to teach this material. Mastery of the art and science of RF coil design is perhaps best achieved through the learning that comes with a long career in the field at multiple places of employment…until now. RF Coils for MRI combines the lifetime understanding and expertise of many of the senior designers in the field into a single, practical training manual. It informs the engineer on part numbers and sources of component materials, equipment, engineering services and consulting to enable anyone with electronics bench experience to build, test and interface a coil. The handbook teaches the MR system user how to safely and successfully implement the coil for its intended application. The comprehensive articles also include information required by the scientist or physician to predict respective experiment or clinical performance of a coil for a variety of common applications. It is expected that RF Coils for MRI becomes an important resource for engineers, technicians, scientists, and physicians wanting to safely and successfully buy or build and use MR coils in the clinic or laboratory. Similarly, this guidebook provides teaching material for students, fellows and residents wanting to better understand the theory and operation of RF coils. Many of the articles have been written by the pioneers and developers of coils, arrays and probes, so this is all first hand information! The handbook serves as an expository guide for hands-on radiologists, radiographers, physicians, engineers, medical physicists, technologists, and for anyone with interests in building or selecting and using RF coils to achieve best clinical or experimental results. About EMR Handbooks / eMagRes Handbooks The Encyclopedia of Magnetic Resonance (up to 2012) and eMagRes (from 2013 onward) publish a wide range of online articles on all aspects of magnetic resonance in physics, chemistry, biology and medicine. The existence of this large number of articles, written by experts in various fields, is enabling the publication of a series of EMR Handbooks / eMagRes Handbooks on specific areas of NMR and MRI. The chapters of each of these handbooks will comprise a carefully chosen selection of articles from eMagRes. In consultation with the eMagRes Editorial Board, the EMR Handbooks / eMagRes Handbooks are coherently planned in advance by specially-selected Editors, and new articles are written (together with updates of some already existing articles) to give appropriate complete coverage. The handbooks are intended to be of value and interest to research students, postdoctoral fellows and other researchers learning about the scientific area in question and undertaking relevant experiments, whether in academia or industry. Have the content of this Handbook and the complete content of eMagRes at your fingertips! Visit: www.wileyonlinelibrary.com/ref/eMagRes View other eMagRes publications here

Handbook of Magnetic Resonance Spectroscopy In Vivo

MRS Theory, Practice and Applications
Author: Paul A. Bottomley,John R. Griffiths
Publisher: John Wiley & Sons
ISBN: 1118997662
Category: Medical
Page: 1232
View: 800

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This handbook covers the entire field of magnetic resonance spectroscopy (MRS), a unique method that allows the non-invasive identification, quantification and spatial mapping of metabolites in living organisms–including animal models and patients. Comprised of three parts: Methodology covers basic MRS theory, methodology for acquiring, quantifying spectra, and spatially localizing spectra, and equipment essentials, as well as vital ancillary issues such as motion suppression and physiological monitoring. Applications focuses on MRS applications, both in animal models of disease and in human studies of normal physiology and disease, including cancer, neurological disease, cardiac and muscle metabolism, and obesity. Reference includes useful appendices and look up tables of relative MRS signal-to-noise ratios, typical tissue concentrations, structures of common metabolites, and useful formulae. About eMagRes Handbooks eMagRes (formerly the Encyclopedia of Magnetic Resonance) publishes a wide range of online articles on all aspects of magnetic resonance in physics, chemistry, biology and medicine. The existence of this large number of articles, written by experts in various fields, is enabling the publication of a series of eMagRes Handbooks on specific areas of NMR and MRI. The chapters of each of these handbooks will comprise a carefully chosen selection of eMagRes articles. In consultation with the eMagRes Editorial Board, the eMagRes Handbooks are coherently planned in advance by specially-selected Editors, and new articles are written to give appropriate complete coverage. The handbooks are intended to be of value and interest to research students, postdoctoral fellows and other researchers learning about the scientific area in question and undertaking relevant experiments, whether in academia or industry. Have the content of this handbook and the complete content of eMagRes at your fingertips! Visit the eMagRes Homepage

Electromagnetic Analysis and Design in Magnetic Resonance Imaging


Author: Jianming Jin
Publisher: Routledge
ISBN: 1351453408
Category: Medical
Page: 282
View: 3794

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This book presents a comprehensive treatment of electromagnetic analysis and design of three critical devices for an MRI system - the magnet, gradient coils, and radiofrequency (RF) coils. Electromagnetic Analysis and Design in Magnetic Resonance Imaging is unique in its detailed examination of the analysis and design of the hardware for an MRI system. It takes an engineering perspective to serve the many scientists and engineers in this rapidly expanding field. Chapters present: an introduction to MRI basic concepts of electromagnetics, including Helmholtz and Maxwell coils, inductance calculation, and magnetic fields produced by special cylindrical and spherical surface currents principles for the analysis and design of gradient coils, including discrete wires and the target field method analysis of RF coils based on the equivalent lumped-circuit model as well as an analysis based on the integral equation formulation survey of special purpose RF coils analytical and numerical methods for the analysis of electromagnetic fields in biological objects With the continued, active development of MRI instrumentation, Electromagnetic Analysis and Design in Magnetic Resonance Imaging presents an excellent, logically organized text - an indispensable resource for engineers, physicists, and graduate students working in the field of MRI.

Magnetic Resonance Imaging

Physical Principles and Sequence Design
Author: Robert W. Brown,E. Mark Haacke,Y.-C. Norman Cheng,Michael R. Thompson,Ramesh Venkatesan
Publisher: John Wiley & Sons
ISBN: 0471720852
Category: Medical
Page: 944
View: 6319

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Preceded by Magnetic resonance imaging: physical principles and sequence design / E. Mark Haacke ... [et al.]. c1999.

NMR Probeheads for Biophysical and Biomedical Experiments

Theoretical Principles and Practical Guidelines Second Edition
Author: Joël Mispelter,Mihaela Lupu,André Briguet
Publisher: World Scientific Publishing Company
ISBN: 1783268042
Category: Technology & Engineering
Page: 756
View: 9840

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NMR Probeheads for Biophysical and Biomedical Experiments 2nd Edition is essential reading for anyone in the field of NMR or MRI, from students to medical or biological scientists performing experiments under certain physical and/or geometrical conditions, unattainable by conventional or available probes. The material guides the reader through the most basic and comprehensive stages in accomplishing a correct probe design, from a very basic oscillating circuit to much more elaborate designs. This new edition has been revised and updated to include a chapter dedicated to RF components, which are commonly used for probes realization and their frequency-dependent characteristics. Another completely revised chapter concerns the multiple coil systems and discusses arrays coils, different decoupling methods, and some principles for interfacing coils with low-noise preamplifiers. The principles of linear circuit analysis are presented in a dedicated chapter. Last but not least, accompanying files containing updated software for probe design have been made available from the publisher's website. Request Inspection Copy

MRI of Tissues with Short T2s or T2*s


Author: Graeme M. Bydder,Gary D. Fullerton,Ian R. Young
Publisher: John Wiley & Sons
ISBN: 1118590511
Category: Medical
Page: 448
View: 1485

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The content of this volume has been added to eMagRes (formerly Encyclopedia of Magnetic Resonance) - the ultimate online resource for NMR and MRI. Up to now MRI could not be used clinically for imaging fine structures of bones or muscles. Since the late 1990s however, the scene has changed dramatically. In particular, Graeme Bydder and his many collaborators have demonstrated the possibility – and importance – of imaging structures in the body that were previously regarded as being “MR Invisible”. The images obtained with a variety of these newly developed methods exhibit complex contrast, resulting in a new quality of images for a wide range of new applications. This Handbook is designed to enable the radiology community to begin their assessment of how best to exploit these new capabilities. It is organised in four major sections – the first of which, after an Introduction, deals with the basic science underlying the rest of the contents of the Handbook. The second, larger, section describes the techniques which are used in recovering the short T2 and T2* data from which the images are reconstructed. The third and fourth sections present a range of applications of the methods described earlier. The third section deals with pre-clinical uses and studies, while the final section describes a range of clinical applications. It is this last section that will surely have the biggest impact on the development in the next few years as the huge promise of Short T2 and T2* Imaging will be exploited to the benefit of patients. In many instances, the authors of an article are the only research group who have published on the topic they describe. This demonstrates that this Handbook presents a range of methods and applications with a huge potential for future developments. About EMR Handbooks / eMagRes Handbooks The Encyclopedia of Magnetic Resonance (up to 2012) and eMagRes (from 2013 onward) publish a wide range of online articles on all aspects of magnetic resonance in physics, chemistry, biology and medicine. The existence of this large number of articles, written by experts in various fields, is enabling the publication of a series of EMR Handbooks / eMagRes Handbooks on specific areas of NMR and MRI. The chapters of each of these handbooks will comprise a carefully chosen selection of articles from eMagRes. In consultation with the eMagRes Editorial Board, the EMR Handbooks / eMagRes Handbooks are coherently planned in advance by specially-selected Editors, and new articles are written (together with updates of some already existing articles) to give appropriate complete coverage. The handbooks are intended to be of value and interest to research students, postdoctoral fellows and other researchers learning about the scientific area in question and undertaking relevant experiments, whether in academia or industry. Have the content of this Handbook and the complete content of eMagRes at your fingertips! Visit: www.wileyonlinelibrary.com/ref/eMagRes View other eMagRes publications here

EPR Spectroscopy

Fundamentals and Methods
Author: Daniella Goldfarb,Stefan Stoll
Publisher: John Wiley & Sons
ISBN: 111916298X
Category: Science
Page: 648
View: 9365

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This unique, self-contained resource is the first volume on electron paramagnetic resonance (EPR) spectroscopy in the eMagRes Handbook series. The 27 chapters cover the theoretical principles, the common experimental techniques, and many important application areas of modern EPR spectroscopy. EPR Spectroscopy: Fundamentals and Methods is presented in four major parts: A: Fundamental Theory, B: Basic Techniques and Instrumentation, C: High-Resolution Pulse Techniques, and D: Special Techniques. The first part of the book gives the reader an introduction to basic continuous-wave (CW) EPR and an overview of the different magnetic interactions that can be determined by EPR spectroscopy, their associated theoretical description, and their information content. The second provides the basics of the various EPR techniques, including pulse EPR, and EPR imaging, along with the associated instrumentation. Parts C and D builds on parts A and B and offer introductory accounts of a wide range of modern advanced EPR techniques, with examples of applications. The last two parts presents most of the new advances that do not appear in most of the classical EPR textbooks that focus on CW EPR. EPR Spectroscopy: Fundamentals and Methods contains, in concise form, all the material needed to understand state-of-the-art EPR spectroscopy at the graduate school/research level, whilst the editors have ensured that it presents the topic at a level accessible to newcomers to the field and others who want to know its range of application and how to apply it.

PACS

A Guide to the Digital Revolution
Author: Keith J. Dreyer,David S. Hirschorn,James H. Thrall,Amit Mehta
Publisher: Springer Science & Business Media
ISBN: 0387310703
Category: Medical
Page: 580
View: 5300

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PACS: A Guide to the Digital Revolution, Second Edition, fills an incredible need by explaining the technological advances associated with the transition of radiology departments to filmless environments. The editors are leaders in the field of medical imaging and they provide insight into emerging technologies for physicians, administrators, and other interested groups. Chapters address key topics in current literature with regard to the generation, transfer, interpretation, and distribution of images. This new edition has been updated to include: 1. An overview of the latest medical imaging standards; 2. A discussion of security issues as they relate to PACS, especially regarding HIPAA; 3. An introduction to current information on PACS workstations, including the impact of new software and hardware on radiologists; 4. An updated explanation of data storage and compression that highlights how advancements are applied; 5. A section on how PACS influences research and education.

Microscopic Magnetic Resonance Imaging

A Practical Perspective
Author: Luisa Ciobanu
Publisher: CRC Press
ISBN: 1351606727
Category: Medical
Page: 118
View: 8284

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In the past two decades, significant advances in magnetic resonance microscopy (MRM) have been made possible by a combination of higher magnetic fields and more robust data acquisition technologies. This technical progress has enabled a shift in MRM applications from basic anatomical investigations to dynamic and functional studies, boosting the use of MRM in biological and life sciences. This book provides a simple introduction to MRM emphasizing practical aspects relevant to high magnetic fields. It focuses on biological applications and presents a number of selected examples of neuroscience applications. The text is mainly intended for those who are beginning research in the field of MRM or are planning to incorporate high-resolution MRI in their neuroscience studies.

Basic Principles of Cardiovascular MRI

Physics and Imaging Techniques
Author: Mushabbar A. Syed,Subha V. Raman,Orlando P. Simonetti
Publisher: Springer
ISBN: 3319221418
Category: Medical
Page: 338
View: 7901

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This book is a comprehensive and authoritative text on the expanding scope of CMR, dedicated to covering basic principles in detail focusing on the needs of cardiovascular imagers. The target audience for this book includes CMR specialists, trainees in CMR and cardiovascular medicine, cardiovascular physicists or clinical cardiovascular imagers. This book includes figures and CMR examples in the form of high-resolution still images and is divided in two sections: basic MRI physics, i.e. the nuts and bolts of MR imaging; and imaging techniques (pulse sequences) used in cardiovascular MR imaging. Each imaging technique is discussed in a separate chapter that includes the physics and clinical applications (with cardiovascular examples) of a particular technique. Evolving techniques or research based techniques are discussed as well. This section covers both cardiac and vascular imaging. ​Cardiovascular magnetic resonance (CMR) imaging is now considered a clinically important imaging modality for patients with a wide variety of cardiovascular diseases. Recent developments in scanner hardware, imaging sequences, and analysis software have led to 3-dimensional, high-resolution imaging of the cardiovascular system. These developments have also influenced a wide variety of cardiovascular imaging applications and it is now routinely used in clinical practice in CMR laboratories around the world. The non-invasiveness and lack of ionizing radiation exposure make CMR uniquely important for patients whose clinical condition requires serial imaging follow-up. This is particularly true for patients with congenital heart disease (CHD) with or without surgical corrections who require lifelong clinical and imaging follow-up.

Magnetic Resonance Technology


Author: Andrew G Webb
Publisher: Royal Society of Chemistry
ISBN: 1782623876
Category: Medical
Page: 402
View: 688

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Magnetic resonance systems are used in almost every academic and industrial chemistry, physics and biochemistry department, as well as being one of the most important imaging modalities in clinical radiology. The design of such systems has become increasingly sophisticated over the years. Static magnetic fields increase continuously, large-scale arrays of receive elements are now ubiquitous in clinical MRI, cryogenic technology has become commonplace in high resolution NMR and is expanding rapidly in preclinical MRI, specialized high strength magnetic field gradients have been designed for studying the human connectome, and the commercial advent of ultra-high field human imaging has required new types of RF coils and static shim coils together with extensive electromagnetic simulations to ensure patient safety. This book covers the hardware and engineering that constitutes a magnetic resonance system, whether that be a high-resolution liquid or solid state system for NMR spectroscopy, a preclinical system for imaging animals or a clinical system used for human imaging. Written by a team of experts in the field, this book provides a comprehensive and instructional look at all aspects of current magnetic resonance technology, as well as outlooks for future developments.

Hyperpolarized Xenon-129 Magnetic Resonance

Concepts, Production, Techniques and Applications
Author: Thomas Meersmann,Eike Brunner
Publisher: Royal Society of Chemistry
ISBN: 1849738890
Category: Medical
Page: 484
View: 8116

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Providing the first comprehensive book on the current state of hyperpolarized Xenon-129 NMR and MRI, this book is guaranteed to appeal to a wide range of scientists interested in this growing field. It is intended to create synergy between the various communities working with this noble gas. Covering all topics from the production of the hyperpolarized gas to its applications, the editors have invited a leading team of experts to combine the physical chemistry within the various topics and across disciplines. The scope will range from the fundamental aspects of optical pumping to practical aspects of hyperpolarizers and hp-xenon handling. The applications section will focus on hyperpolarized xenon-129 detected in the dissolved phase or micro porous media where the chemical shift of xenon-129 can be used as a diagnostic probe. Appealing to researchers in the biomedical field and materials sciences, this reference book will provide background reading and future looking material in one place.

In Vivo NMR Spectroscopy

Principles and Techniques
Author: Robin A. de Graaf
Publisher: John Wiley & Sons
ISBN: 1118681304
Category: Science
Page: 592
View: 3783

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This is the second edition of a unique book in the field of in vivo NMR covering in detail the technical and biophysical aspects of the technique. The contents of the book are appropriate to both beginners and experienced users of in vivo NMR spectroscopy. The new edition is focussed on bringing the reader practical insights and advice, but is also geared towards use as a study aid and in NMR courses. Recent advances in NMR spectroscopy, like high field NMR, hyperpolarized NMR and new localization and editing techniques have been included. An extensive and updated treatment of radiofrequency pulses is given, together with several tables and recipes for their generation. Solutions to the exercises within this text can be found here

MRI: The Basics


Author: Ray H. Hashemi,Christopher J. Lisanti,William Bradley
Publisher: Lippincott Williams & Wilkins
ISBN: 1496384342
Category: Medical
Page: 496
View: 9140

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Concise, readable, and engaging, MRI: The Basics, 4th Edition, offers an excellent introduction to the physics behind MR imaging. Clinically relevant coverage includes everything from basic principles and key math concepts to more advanced topics, including the latest MR techniques and optimum image creation. Hundreds of high-quality illustrations, board-style questions and answers, legible equations, and instructive diagrams take you from the basics of MR physics through current applications.

Compact NMR


Author: Bernhard Blümich,Sabina Haber-Pohlmeier,Wasif Zia
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110374587
Category: Technology & Engineering
Page: 289
View: 6075

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Nuclear Magnetic Resonance (NMR) spectroscopy is the most popular method for chemists to analyze molecular structures while Magnetic Resonance Imaging (MRI) is a non-invasive diagnostic tool for medical doctors that provides high-contrast images of biological tissue depicting the brain function and the beating heart. The book offers a basic introduction to NMR with portable devices, the equipment, the experimental set-up, types of NMR experiments, example applications, and data evaluation procedures. Each description follows the same didactic pattern: introduction, basic theory, pulse sequences and parameters, beginners-level measurements, advanced-level measurements, data processing. Mobile NMR simplified to approach the level of operating a smart phone!

Evidence-Based Imaging

Improving the Quality of Imaging in Patient Care
Author: L. Santiago Medina,C. Craig Blackmore,Kimberly Applegate
Publisher: Springer Science & Business Media
ISBN: 9781441977779
Category: Medical
Page: 680
View: 7394

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Evidence-Based Imaging is a user-friendly guide to the evidence-based science and merit defining the appropriate use of medical imaging in both adult and pediatric patients. Chapters are divided into major areas of medical imaging and cover the most prevalent diseases in developed countries, including the four major causes of mortality and morbidity: injury, coronary artery disease, cancer, and cerebrovascular disease. This book gives the reader a clinically-relevant overview of evidence-based imaging, with topics including epidemiology, patient selection, imaging strategies, test performance, cost-effectiveness, radiation safety and applicability. Each chapter is framed around important and provocative clinical questions relevant to the daily physician’s practice. Key points and summarized answers are highlighted so the busy clinician can quickly understand the most important evidence-based imaging data. A wealth of illustrations and summary tables reinforces the key evidence. This revised, softcover edition adds ten new chapters to the material from the original, hardcover edition, covering radiation risk in medical imaging, the economic and regulatory impact of evidence-based imaging in the new healthcare reform environment in the United States, and new topics on common disorders. By offering a clear understanding of the science behind the evidence, Evidence-Based Imaging fills a void for radiologists, family practitioners, pediatricians, surgeons, residents, and others with an interest in medical imaging and a desire to implement an evidence-based approach to optimize quality in patient care.

Understanding Magnetic Resonance Imaging


Author: Robert C. Smith,Robert C. Lange
Publisher: CRC Press
ISBN: 9780849326585
Category: Medical
Page: 240
View: 3811

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Magnetic resonance imaging (MRI) is the most technically dependent imaging technique in radiology. To perform and interpret MRI studies correctly, an understanding of the basic underlying principles is essential. Understanding Magnetic Resonance Imaging explains the pulse sequences, imaging options, and coils used to produce MR images, providing a strong foundation for performing and interpreting imaging studies. The text is complemented by more than 100 figures and 25 photomicrographs illustrating the techniques discussed. Radiology residents, MR technologists, and radiologists should not be without Understanding Magnetic Resonance Imaging-the only single resource that explains all technical aspects of MRI, including recent advances, and presents all imaging options.

Parallel Imaging in Clinical MR Applications


Author: Stefan O. Schönberg,Olaf Dietrich,Maximilian F Reiser
Publisher: Springer Science & Business Media
ISBN: 354068879X
Category: Medical
Page: 564
View: 4269

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This book presents the first in-depth introduction to parallel imaging techniques and, in particular, to the application of parallel imaging in clinical MRI. It will provide readers with a broader understanding of the fundamental principles of parallel imaging and of the advantages and disadvantages of specific MR protocols in clinical applications in all parts of the body at 1.5 and 3 Tesla.

Physics in Medical Diagnosis


Author: T.A. Delchar
Publisher: Springer Science & Business Media
ISBN: 9780412616808
Category: Medical
Page: 360
View: 2683

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Physics has been applied to medical diagnosis for very nearly 400 years, and has now become an essential element of medical practice. This book concentrates on the theoretical basis of the physics which supports diagnostic techniques in modern clinical practice. Arising out of over a decade of teaching a course on medical physics to third year undergraduate students, the book has been structured so that individuals with a non-physics background, such as medical students or practitioners, can also benefit.

PET/CT

Essentials for Clinical Practice
Author: Ronald B. Workman,R. Edward Coleman
Publisher: Springer Science & Business Media
ISBN: 0387383352
Category: Medical
Page: 248
View: 8945

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This pocket guide provides concise discussion on the effective use of PET and PET/CT in patient management for a wide range of clinical conditions. Introductory chapters cover the fundamentals: basic science, patient preparation, and logistical considerations. The body of the guide examines the role of PET in the management of malignancies such as lymphoma, melanoma, and colorectal cancer. Additional chapters discuss use of PET for pancreatic, ovarian, and cervical cancers, sarcoma, and seminoma, and outlines cardiologic and neurologic applications. The final chapter considers the appropriateness, timing, and limitations of PET in common clinical case scenarios. Select images supplement the text.