Handbook of MRI Pulse Sequences

Author: Matt A. Bernstein,Kevin F. King,Xiaohong Joe Zhou

Publisher: Elsevier

ISBN: 9780080533124

Category: Mathematics

Page: 1040

View: 1283

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Magnetic Resonance Imaging (MRI) is among the most important medical imaging techniques available today. There is an installed base of approximately 15,000 MRI scanners worldwide. Each of these scanners is capable of running many different "pulse sequences", which are governed by physics and engineering principles, and implemented by software programs that control the MRI hardware. To utilize an MRI scanner to the fullest extent, a conceptual understanding of its pulse sequences is crucial. Handbook of MRI Pulse Sequences offers a complete guide that can help the scientists, engineers, clinicians, and technologists in the field of MRI understand and better employ their scanner. Explains pulse sequences, their components, and the associated image reconstruction methods commonly used in MRI Provides self-contained sections for individual techniques Can be used as a quick reference guide or as a resource for deeper study Includes both non-mathematical and mathematical descriptions Contains numerous figures, tables, references, and worked example problems

Handbook of MRI Technique

Author: Catherine Westbrook

Publisher: John Wiley & Sons

ISBN: 1118661621

Category: Medical

Page: 392

View: 9972

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The ideal clinical reference text for users of all types of MRI systems Written by international team of technologists from the USA, UK and Europe The ideal support for both for radiographers new to MRI and for regular users looking for information on alternative techniques and protocol modifications Now includes Key Points throughout for quick reference Companion website at wiley.com/go/westbrook/mritechnique with self-assessment and image flashcards

Wie funktioniert MRI?

Eine Einführung in Physik und Funktionsweise der Magnetresonanzbildgebung

Author: Victor D. Köchli,Borut Marincek

Publisher: Springer-Verlag

ISBN: 3662134357

Category: Medical

Page: 89

View: 2273

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Wie funktioniert eigentlich MRI? Diese Frage wird so oft gestellt, daß wir uns entschlossen haben, unser Modell von der Funktionsweise dieser faszinierenden und zukunftsweisenden Methode zusammen zufassen. Modell, notabene, denn in Tat und Wahrheit sind die physikali schen und technischen Hintergründe viel komplizierter, als wir sie hier darstellen. Aber dieses Skript richtet sich auch nicht an Physiker innen und Physiker, sondern an all diejenigen, die sich für MRI inter essieren, regelmäßig damit zu tun haben oder einfach sonst genauer wissen möchten, was hinter MRI steckt, also z. B. an Ärztinnen und Ärzte, MTRAs, Studentinnen und Studenten. Das Ziel ist deshalb nicht eine fundierte und exakte Abhandlung aller physikalischen Zusam menhänge und Formeln, sondern eine (hoffentlich) verständliche Einführung in die Prinzipien der MR-Bildgebung. Insbesondere werden (hoffentlich!) alle wichtigen Begriffe behan delt, die auch in der klinischen Anwendung von Bedeutung sind, und es wird versucht, die zugrundeliegenden physikalischen Vorgänge verständlich zu machen. Es geht also trotz allem nicht ohne ein bi߭ chen Physik! Wir danken allen, die uns bei der Verbesserung dieses Skripts mit Rat und Kritik geholfen haben. Besonderer Dank gebührt an dieser Stelle Herrn Constantin von Weymarn, der bei der Überarbeitung des Skripts geholfen und die physikalischen Grundlagen abgesichert hat. Außerdem danken wir Herrn Johannes Fröhlich von der Firma Guerbet AG für seine zahlreichen konstruktiven Anregungen. Wir sind auch in Zukunft froh um jede Kritik, die es uns ermöglicht, diese Ein führung zu verbessern, damit sie ihr Ziel erreichen kann.

Handbook of MRI Scanning - E-Book

Author: Geraldine Burghart,Carol Ann Finn

Publisher: Elsevier Health Sciences

ISBN: 0323170242

Category: Medical

Page: 416

View: 2581

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Ensure high-quality diagnostic images with this practical scanning reference! Designed to help you plan and acquire MRI images, Handbook of MRI Scanning, by Geraldine Burghart and Carol Ann Finn, includes the step-by-step scanning protocols you need to produce optimal images. Coverage of all body regions prepares you to perform virtually any scan. Going beyond the referencing and recognition of three-plane, cross-sectional anatomy, each chapter demonstrates appropriate slice placements, typical midline images of each plane, and detailed line drawings of the pertinent anatomy corresponding to the midline images. With this handbook, you can conceptualize an entire scan and its intended outcome prior to performing the scan on a patient. Keep the book at your console -- it’s ideal for quick reference! Consistent, clinically based layout of the sections makes scanning information easy to use with three images per page to demonstrate clinical sequences in MRI examinations. Handy, pocket size offers easy, immediate access right at the console. 600 images provide multiple views and superb anatomic detail. Suggested technical parameters are provided in convenient tables for quick reference with space to write in site-specific protocols or equipment variations.

Magnetresonanzbildgebung

Theorie und Praxis

Author: Marinus T. Vlaardingerbroek,Jacques A. Boer

Publisher: Springer-Verlag

ISBN: 3642186971

Category: Science

Page: 535

View: 1116

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Das bekannte Lehrbuch zur Physik und Technik der kernmagnetischen Resonanz liegt jetzt auch in deutscher Sprache vor. Es beschreibt den physikalischen Hintergrund der Scan-Methoden und ihren Einsatz in der medizinischen Diagnostik. In diesem Zusammenhang werden auch neue Wege und Verfahren aufgezeigt. Besondere Aufmerksamkeit gilt der Behandlung von Artefakten und ihrer mathematischen Beschreibung. Das Buch ist mit vielen Illustrationen zu Scan-Verfahren, wie z.B. RARE, GRASE, EPI, Balanced FFE und Spiralscan ausgestattet. Detaillierte Aussagen über Echoamplituden in Multi-Echosequenzen, wie TSE, FFE und BURST sind in einem besonderen Kapitel mit Hilfe der Konfigurationstheorie ausführlich abgehandelt. Eine kurze Einführung in die Geschichte der MR-Bildgebung rundet dieses Buch ab.

Handbook of Small Animal MRI

Author: Ian Elliott,Geoff Skerritt

Publisher: John Wiley & Sons

ISBN: 1118699688

Category: Medical

Page: 168

View: 4875

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Handbook of Small Animal MRI will help you make the most of one of the greatest advancements in veterinary practice in recent years, magnetic resonance imaging. Those using the services of mobile scanners dedicated to veterinary use, as well as those in practices with their own MRI machine, will benefit from this book. It provides a clear and comprehensive account of how this important diagnostic tool works. In addition this easy reference handbook provides guidance on the interpretation of images of common clinical conditions. The book includes: • An overview of the basic principles, explaining exactly how and why MRI works and how images are produced • Easy-to-understand diagrams to explain the theory of MRI • Safety procedures • A Glossary of terms • Over 100 annotated images of MRI scans to aid diagnosis • An additional atlas of normal anatomy for MRI interpretation Written by two pioneering experts in the field with a combined experience of over 20,000 MRI studies of veterinary patients. Suitable for small animal veterinarians and veterinary students. Ian Elliott trained as a Radiographer and first became involved with MRI in late 1980s. He has worked exclusively in MRI since 1991 and, following an extensive spell scanning human patients, helped pioneer the use of the technique in veterinary practice. Ian has been involved exclusively in veterinary MRI since 2000 and has scanned many thousands of cases during this time. He currently works for Burgess Diagnostics providing MRI services to veterinary surgeons throughout UK and Ireland. Geoff Skerritt is an RCVS Recognised Specialist in Veterinary Neurology, Diplomate of the European College of Veterinary Neurology and former President of the ECVN. In 1997 Geoff was one of the founders of VetMRI, the first mobile veterinary MRI facility in Europe. He is the founder and director of ChesterGates Animal Referral Hospital, a leading multi-discipline veterinary referral centre in the UK.

Handbook of Spectroscopy

Author: G¿nter Gauglitz,David S. Moore

Publisher: John Wiley & Sons

ISBN: 3527321500

Category: Science

Page: 1993

View: 4040

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This second, thoroughly revised, updated and enlarged edition provides a straightforward introduction to spectroscopy, showing what it can do and how it does it, together with a clear, integrated and objective account of the wealth of information that may be derived from spectra. It also features new chapters on spectroscopy in nano-dimensions, nano-optics, and polymer analysis. Clearly structured into sixteen sections, it covers everything from spectroscopy in nanodimensions to medicinal applications, spanning a wide range of the electromagnetic spectrum and the physical processes involved, from nuclear phenomena to molecular rotation processes. In addition, data tables provide a comparison of different methods in a standardized form, allowing readers to save valuable time in the decision process by avoiding wrong turns, and also help in selecting the instrumentation and performing the experiments. These four volumes are a must-have companion for daily use in every lab.

Klinische MR-Bildgebung

Eine praktische Anleitung

Author: P. Reimer,P.M. Parizel,F.-A. Stichnoth

Publisher: Springer-Verlag

ISBN: 3642557058

Category: Medical

Page: 631

View: 7239

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Praktische Anleitungen für effiziente und kosteneffektive MRT-Untersuchungen in der täglichen Routine einschließlich MRT in der Pädiatrie Zweite, vollständig überarbeitete Auflage mit - neuen Techniken, Pulssequenzen und Protokollen - zusätzlichem Kapitel "MRT Thorax" - zahlreichen neuen Abbildungen

MRI in Practice

Author: Catherine Westbrook,Carolyn Kaut Roth

Publisher: John Wiley & Sons

ISBN: 1118273869

Category: Medical

Page: 456

View: 344

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Since the first edition was published in 1993, MRI in Practice has become the standard text for radiographers, technologists, radiology residents, radiologists and even sales representatives on the subject of Magnetic Resonance Imaging (MRI). This text is essential reading on undergraduate and postgraduate MRI courses. Furthermore MRI in Practice has come to be known as the number one reference book and study guide in the areas of MR instrumentation, principles, pulse sequences, image acquisition, and imaging parameters for the advanced level examination for MRI offered by the American Registry for Radiologic Technologists (ARRT) in the USA. The book explains in clear terms the theory that underpins magnetic resonance so that the capabilities and operation of MRI systems can be fully appreciated and maximised. This fourth edition captures recent advances, and coverage includes: parallel imaging techniques and new sequences such as balanced gradient echo. Building on the success of the first three editions, the fourth edition has been fully revised and updated. The book now comes with a companion website at www.wiley.com/go/mriinpractice which hosts animated versions of a selection of illustrations in the book that are used on the MRI in Practice Course. These animations and accompanying text are aimed at helping the reader’s comprehension of some of the more difficult concepts. The website also hosts over 200 interactive self-assessment exercises to help the reader test their understanding. MRI in Practice features: Full color illustrations Logical presentation of the theory and applications of MRI A new page design A companion website at www.wiley.com/go/mriinpractice featuring interactive multiple choice questions, short answer questions PLUS animations of more complex concepts from the book For more information on the MRI in Practice Course and other learning resources by Westbrook and Talbot, please visit www.mrieducation.com

Ultra-Low Field Nuclear Magnetic Resonance

A New MRI Regime

Author: Robert Kraus Jr.,Michelle Espy,Per Magnelind,Petr Volegov

Publisher: Oxford University Press

ISBN: 0199347883

Category: Medical

Page: 416

View: 6592

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This book is designed to introduce the reader to the field of NMR/MRI at very low magnetic fields, from milli-Tesla to micro-Tesla, the ultra-low field (ULF) regime. The book is focused on applications to imaging the human brain, and hardware methods primarily based upon pre-polarization methods and SQUID-based detection. The goal of the text is to provide insight and tools for the reader to better understand what applications are best served by ULF NMR/MRI approaches. A discussion of the hardware challenges, such as shielding, operation of SQUID sensors in a dynamic field environment, and pulsed magnetic field generation are presented. One goal of the text is to provide the reader a framework of understanding the approaches to estimation and mitigation of low signal-to-noise and long imaging time, which are the main challenges. Special attention is paid to the combination of MEG and ULF MRI, and the benefits and challenges presented by trying to accomplish both with the same hardware. The book discusses the origin of unique relaxation contrast at ULF, and special considerations for image artifacts and how to correct them (i.e. concomitant gradients, ghost artifacts). A general discussion of MRI, with special consideration to the challenges of imaging at ULF and unique opportunities in pulse sequences, is presented. The book also presents an overview of some of the primary applications of ULF NMR/MRI being pursued.

Handbook of Medical Imaging

Processing and Analysis Management

Author: N.A

Publisher: Academic Press

ISBN: 9780080533100

Category: Technology & Engineering

Page: 901

View: 9138

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In recent years, the remarkable advances in medical imaging instruments have increased their use considerably for diagnostics as well as planning and follow-up of treatment. Emerging from the fields of radiology, medical physics and engineering, medical imaging no longer simply deals with the technology and interpretation of radiographic images. The limitless possibilities presented by computer science and technology, coupled with engineering advances in signal processing, optics and nuclear medicine have created the vastly expanded field of medical imaging. The Handbook of Medical Imaging is the first comprehensive compilation of the concepts and techniques used to analyze and manipulate medical images after they have been generated or digitized. The Handbook is organized in six sections that relate to the main functions needed for processing: enhancement, segmentation, quantification, registration, visualization as well as compression storage and telemedicine. * Internationally renowned authors(Johns Hopkins, Harvard, UCLA, Yale, Columbia, UCSF) * Includes imaging and visualization * Contains over 60 pages of stunning, four-color images

Imaging in Neurodegenerative Disorders

Author: Luca Saba

Publisher: OUP Oxford

ISBN: 0191651400

Category: Medical

Page: 640

View: 4102

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Diagnosing neurodegenerative diseases can prove particularly intimidating to clinicians, because many times the diagnosis cannot be critically "confirmed" by a simple test. New imaging modalities have advanced to the point of high resolution, morphological, metabolic and functional analysis. Computed tomography, magnetic resonance, nuclear medicine and molecular imaging have recently emerged as outstanding non-invasive techniques for the study of the neurodegenerative disorders. Imaging in Neurodegenerative Disorders covers all the imaging techniques and new exciting methods like new tracers, biomarker, metabolomic and gene-array profiling, potential for applying such techniques clinically, and offers present and future applications as applied to the neurodegenerative disorders with the most world renowned scientists in these fields. This book is an invaluable resource for researchers, clinicians, and trainees in neuroscience, neurology, psychiatry, and radiology.

MRI

Essentials for Innovative Technologies

Author: Giuseppe Placidi

Publisher: CRC Press

ISBN: 1439840628

Category: Medical

Page: 216

View: 628

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MRI: Essentials for Innovative Technologies describes novel methods to improve magnetic resonance imaging (MRI) beyond its current limitations. It proposes smart encoding methods and acquisition sequences to deal with frequency displacement due to residual static magnetic field inhomogeneity, motion, and undersampling. Requiring few or no hardware modifications, these speculative methods offer building blocks that can be combined and refined to overcome barriers to more advanced MRI applications, such as real-time imaging and open systems. After a concise review of basic mathematical tools and the physics of MRI, the book describes the severe artifacts produced by conventional MRI techniques. It first tackles magnetic field inhomogeneities, outlining conventional solutions as well as a completely different approach based on time-varying gradients and temporal frequency variation coding (acceleration). The book then proposes two innovative acquisition methods for reducing acquisition time, motion, and undersampling artifacts: adaptive acquisition and compressed sensing. The concluding chapter lays out the author’s predictions for the future of MRI. For some of the proposed solutions, this is the first time the reported results have been published. Where experimental data is preliminary or unavailable, the book presents only numerical solutions. Offering insight into emerging MRI techniques, this book provides readers with specialized knowledge to help them design better acquisition sequences and select appropriate correction methods. The author’s proceeds from the sale of this book will be entirely donated to Bambin Gesù Children’s Hospital in Rome.

Handbook of Veterinary Neurology - E-Book

Author: Michael D. Lorenz,Joan Coates,Marc Kent

Publisher: Elsevier Health Sciences

ISBN: 1437706525

Category: Medical

Page: 560

View: 6724

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Handbook of Veterinary Neurology provides quick access to vital information on neurologic conditions in a wide range of species, including canine, feline, bovine, caprine, equine, ovine, and porcine. A problem-oriented approach makes it easy to diagnose and treat neurologic problems in small and large animals. The coverage of disorders by problem, not by established disease diagnosis, emulates how animals present to the veterinary hospital and simplifies the formulation of a correct diagnosis. Within each chapter, discussions of neurologic disease include a review of the localization criteria and the diseases that can cause that problem, plus treatment and surgical techniques. Lead author Michael D. Lorenz brings decades of experience to neurologic assessment, using a diagnostic approach that requires minimal knowledge of neuroanatomy. A problem-based approach is organized by presenting sign rather than by condition, guiding you to logical conclusions regarding diagnosis and treatment. Algorithms diagram the logic necessary to localize lesions and to formulate diagnostic plans. Coverage of current diagnostic techniques includes the use of diagnostic tools, such as radiology, spinal fluid analysis, electrodiagnosis, and MR imaging. Case histories in each chapter present a problem and the results of the neurologic examination, then ask you to solve the problem by localizing the lesion, listing probable causes, and making a diagnostic plan. Answers are provided at the back of the book. A consistent format for each case history includes signalment, history, physical examination findings, and neurologic examination. A comprehensive appendix describes species and breeds that have a congenital predisposition for particular neurologic diseases. Extensive references make it easy to pursue in-depth research of more advanced topics. A companion website includes 20 narrated video clips with accompanying PowerPoint slides that correlate to the case histories in the book, covering neurologic assessment and clinical problems such as paresis of one limb, tetraparesis, stupor, seizures, ataxia of the head and limbs, and cranial nerve disorders. Two new co-authors, Jean Coates and Marc Kent, board-certified in neurology, enhance the credibility of this edition. A full-color design and numerous illustrations include enhanced images of neuroanatomy and pathology.

Heart's Vortex

Intracardiac Blood Flow Phenomena

Author: Ares Pasipoularides

Publisher: PMPH-USA

ISBN: 9781607950332

Category: Medical

Page: 927

View: 3710

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This outstanding resource provides a comprehensive guide to intracardiac blood flow phenomena and cardiac hemodynamics, including the developmental history, theoretical frameworks, computational fluid dynamics and practical applications for clinical cardiology, cardiac imaging and embryology. It is not a mere compilation of the most up-to-date scientific data and relevant concepts. Rather, it is an integrated educational means to developing pluridisciplinary background, knowledge and understanding. Such understanding allows an appreciation of the crucial, albeit heretofore generally unappreciated, importance of intracardiac blood flow phenomena in a host of multifaceted functional and morphogenetic cardiac adaptations. The book includes over 400 figures, which were prepared by the author and form a vital part of the pedagogy. It is organized in three parts. Part I, Fundamentals of Intracardiac Flows and Their Measurements Part II, Visualization of Intracardiac Blood Flows: Methodologies, Frameworks and Insights Part III contains an Appendix presenting technical aspects of the method of predetermined boundary motion, “PBM,†developed at Duke University by the author and his collaborators

MRI Handbook

MR Physics, Patient Positioning, and Protocols

Author: Muhammed Elmaoğlu,Azim Çelik

Publisher: Springer Science & Business Media

ISBN: 9781461410966

Category: Medical

Page: 318

View: 1741

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MRI Handbook presents a concise review of the physical principles underlying magnetic resonance imaging (MRI), explaining MR physics, patient positioning, and protocols in an easy-to-read format. The first five chapters of the book introduce the reader to the basics of MR imaging, including the relaxation concept, MR pulse sequences, and MR imaging parameters and options. The second part of the book (chapters 6-11) uses extensive illustrations, images, and protocol tables to explain tips and tricks to achieve optimal MR image quality while ensuring patient safety. Individual chapters are devoted to each major anatomic region, including the central nervous, musculoskeletal, and cardiovascular systems. By using annotated MR images and examples of patient positions used during scanning correlated with sample protocols and parameters, MRI Handbook is a practical resource for imaging professionals to use in the course of their daily practice as well as for students to learn the basic concepts of MR imaging.

Handbook of Imaging in Biological Mechanics

Author: Corey P. Neu,Guy M. Genin

Publisher: CRC Press

ISBN: 1466588144

Category: Medical

Page: 579

View: 6118

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Emerging imaging techniques have opened new fronts to investigate tissues, cells, and proteins. Transformative technologies such as microCT scans, super-resolution microscopy, fluorescence-based tools, and other methods now allow us to study the mechanics of cancer, dissect the origins of cellular force regulation, and examine biological specimens at the nanoscale. The Handbook of Imaging in Biological Mechanics presents the spectrum of imaging techniques used for noninvasive visualization of the morphology and mechanics of the large and small—from organs to individual macromolecules. The handbook presents optimal imaging technologies to study deformation, stress, and constitutive behavior of tissues, cells, and proteins. It also describes a suite of technologies available for probing the mechanics of surfaces, membranes, and single molecules. With chapters authored by highly recognized experts in their area, the handbook covers the entire spectrum of biomechanical and mechanobiologic imaging technologies available today.

Handbook of Functional MRI Data Analysis

Author: Russell A. Poldrack,Jeanette A. Mumford,Thomas E. Nichols

Publisher: Cambridge University Press

ISBN: 1139498363

Category: Medical

Page: N.A

View: 9841

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Functional magnetic resonance imaging (fMRI) has become the most popular method for imaging brain function. Handbook of Functional MRI Data Analysis provides a comprehensive and practical introduction to the methods used for fMRI data analysis. Using minimal jargon, this book explains the concepts behind processing fMRI data, focusing on the techniques that are most commonly used in the field. This book provides background about the methods employed by common data analysis packages including FSL, SPM and AFNI. Some of the newest cutting-edge techniques, including pattern classification analysis, connectivity modeling and resting state network analysis, are also discussed. Readers of this book, whether newcomers to the field or experienced researchers, will obtain a deep and effective knowledge of how to employ fMRI analysis to ask scientific questions and become more sophisticated users of fMRI analysis software.

Merenstein & Gardner's Handbook of Neonatal Intensive Care E-Book

Author: Sandra Lee Gardner,Brian S. Carter,Mary I Enzman-Hines,Jacinto A. Hernandez

Publisher: Elsevier Health Sciences

ISBN: 0323081134

Category: Medical

Page: 1040

View: 4511

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The leading resource for collaborative critical care for newborns, Merenstein & Gardner’s Handbook of Neonatal Intensive Care, 7th Edition provides a multidisciplinary approach and a real-world perspective. It focuses on evidenced-based practice, with clinical directions in color for easy retrieval and review. Special features help you prioritize the steps in initial care, and provide a guide to sharing information with parents. With each chapter written jointly by both physicians and nurses, this book is comprehensive enough to suit the needs of the entire team in your neonatal intensive care unit. Unique! A multidisciplinary perspective is provided by an editorial team of two physicians and two nurses, and each chapter is written and reviewed by a physician and nurse team, so information mirrors the real-world experience in a neonatal intensive care unit. Unique! Clinical content is in color, so you can quickly scan through chapters for information that directly affects patient care. Unique! Parent Teaching boxes highlight the relevant information to be shared with a patient’s caregivers. Critical Findings boxes outline symptoms and diagnostic findings that require immediate attention, helping you prioritize assessment data and steps in initial care. Coverage in clinical chapters includes pathophysiology and etiology, prevention, data collection, treatment, complications, outcomes, prognosis, and parent education. Expanded Neonatal Surgery chapter covers all of the most common procedures in neonatal surgery. Follow-up of the Neonatal Intensive Care Unit Infant chapter is expanded to include coverage of outcomes management and discharge planning. Streamlined references are updated to include only the most current or classic sources.