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Books > Medicine > Other branches of medicine > Medical imaging
This book presents a comprehensive review of the recent developments in fast L1-norm regularization-based compressed sensing (CS) magnetic resonance image reconstruction algorithms. Compressed sensing magnetic resonance imaging (CS-MRI) is able to reduce the scan time of MRI considerably as it is possible to reconstruct MR images from only a few measurements in the k-space; far below the requirements of the Nyquist sampling rate. L1-norm-based regularization problems can be solved efficiently using the state-of-the-art convex optimization techniques, which in general outperform the greedy techniques in terms of quality of reconstructions. Recently, fast convex optimization based reconstruction algorithms have been developed which are also able to achieve the benchmarks for the use of CS-MRI in clinical practice. This book enables graduate students, researchers, and medical practitioners working in the field of medical image processing, particularly in MRI to understand the need for the CS in MRI, and thereby how it could revolutionize the soft tissue imaging to benefit healthcare technology without making major changes in the existing scanner hardware. It would be particularly useful for researchers who have just entered into the exciting field of CS-MRI and would like to quickly go through the developments to date without diving into the detailed mathematical analysis. Finally, it also discusses recent trends and future research directions for implementation of CS-MRI in clinical practice, particularly in Bio- and Neuro-informatics applications.
In this issue of MRI Clinics, guest editor Dr. Luis Beltran brings his considerable expertise to the topic of Postoperative Joint MR Imaging. Postoperative imaging is key to evaluating healing, identifying postsurgical complications, and monitoring for indications of rejection. In this first-of-its-kind Clinics issue, top experts focus on postoperative imaging of the hip, knee, wrist, hand, rotator cuff, elbow, foot, and ankle. Contains 11 practice-oriented topics including technical considerations in postoperative MR joint imaging; postoperative MRI of the elbow; postoperative MRI of the hip; postoperative MRI of the knee ligaments; postoperative MRI of the ankle and foot; and more. Provides in-depth clinical reviews on postoperative joint MR imaging, offering actionable insights for clinical practice. Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.
This book aims to help candidates preparing for the Final FRCR 2B examinations held by the Royal College of Radiologists of the UK, and the Joint Final FRCR/FHKCR Part B Examination for the Fellowship of the Royal College of Radiologists and Hong Kong College of Radiologists. This book provides advice on preparation techniques, followed by dozens of practice cases and images relevant to all three sections of the examination: reporting session, rapid reporting session and oral examination/viva voce. The richly-illustrated book contains images of plain X-rays, CT, MR, US and radionuclide scans, making it particularly useful for candidates who have limited access to teaching or film libraries. A selection of both common and uncommon cases is included, giving candidates a realistic idea of the level of preparation and the breadth and depth of knowledge needed for success. Although primarily focused on the FRCR 2B examination, radiology trainees across the world facing viva and reporting sessions and candidates for American Board Examinations will find this a useful and informative book.
This book explains how diffusion weighted imaging has been incorporated in routine MRI examinations of the abdomen and pelvis: though its clinical role is still evolving, it is already considered an important tool for the assessment of rectal cancer treatment response, as was confirmed in recent ESGAR consensus statements. The standardization and clinical validation of quantitative DWI related biomarkers are still in progress, although certain efforts have been undertaken to establish imaging guidelines for different clinical indications/body parts. The book reviews the technical aspects and clinical applications of DWI in imaging of the GI tract, and provides specific technical details (imaging protocols, artefacts, optimization techniques) for each GI tract division. This volume is mainly intended for radiologists who are interested in abdominal radiology, as well as radiology residents. Given that magnetic resonance physics is complex and can be cumbersome to learn, the authors have made it as simple and practical as possible.
In this critical area of emergency care, a sound knowledge and understanding of this essential skill is of utmost importance. The authors have extensive knowledge in this field and are considered leaders in the development of point of care ultrasound, with extensive international experience of teaching in this area. The individual chapters are written by current experts in their field to create an authoritative text covering all areas of this exciting new area of medicine.
Among all the clinical indications for which radiologists, nuclear medicine phy- cians, neurologists, neurosurgeons, psychiatrists (and others examining disorders of the brain) order and read brain PET scans, demand is greatest for those pertaining to dementia and related disorders. This demand is driven by the sheer prevalence of those conditions, coupled with the fact that the differential diagnosis for causes of cognitive impairment is wide and often difficult to distinguish clinically. The conceptual framework by which evaluation and management of dementia is guided has evolved considerably during the last decade. Although we still are far from having ideal tests or dramatic cures for any of the established causes of dementia, our options have expanded with respect to both the diagnostic and the- peutic tools now available. In the first chapter of this book, the contribution and limitations of different elements of the clinical examination for diagnosis of cog- tive symptoms are described, and the roles of structural and functional neuroim- ing in the clinical workup are given context.
This reference, written by leading authorities in the field, gives basic theory, implementation details, advanced research, and applications of RF and microwave in healthcare and biosensing. It first provides a solid understanding of the fundamentals with coverage of the basics of microwave engineering and the interaction between electromagnetic waves and biomaterials. It then presents the state-of-the-art development in microwave biosensing, implantable devices -including applications of microwave technology for sensing biological tissues - and medical diagnosis, along with applications involving remote patient monitoring. this book is an ideal reference for RF and microwave engineer working on, or thinking of working on, the applications of RF and Microwave technology in medicine and biology. Learn: The fundamentals of RF and microwave engineering in healthcare and biosensing How to combine biological and medical aspects of the field with underlying engineering concepts How to implement microwave biosensing for material characterization and cancer diagnosis Applications and functioning of wireless implantable biomedical devices and microwave non-contact biomedical radars How to combine devices, systems, and methods for new practical applications
Rapid acquisition and interpretation of radiographs, portable ultrasound (US) and computed tomography (CT) are now the mainstay of initial successful management of sick and traumatized patients presenting to Accident and Emergency Departments. The ABC of Emergency Radiology is a simple and logical step-by-step guide on how to interpret radiographs, US and CT. It incorporates all the latest technological advances, including replacing plain radiographs with digital radiographs, changes in imaging protocols and the role of portable US and multidetector CT. With over 400 illustrations and annotated radiographs, this thoroughly revised third edition provides more images, new illustrations, and new chapters on emergency US and CT that reflect current practice. Each chapter starts with radiological anatomy, standard and then additional views, a systematic approach to interpretation (ABC approach) and followed by a review of common abnormalities. The ABC of Emergency Radiology is an invaluable resource for accident and emergency staff, trainee radiologists, medical students, nurses, radiographers and all medical personnel involved in the immediate care of trauma patients. This title is also available as a mobile App from MedHand Mobile Libraries. Buy it now from iTunes, Google Play or the MedHand Store.
This book provides a state-of-the-art review of the technical and clinical aspects of the vascular interventional radiological (IR) procedures currently employed in obstetrics and gynaecology. A particular focus is on uterine artery embolisation for fibroid disease, which is contrasted with the main alternative uterus-conserving surgical approach of myomectomy, and with ablation therapy. Detailed consideration is also given to the role of embolisation in a variety of other less common conditions, including arteriovenous malformations, post-partum haemorrhage, abnormal placentation and pelvic congestion syndrome. IR procedures are examined from a critical gynaecological perspective and with regard to surgical alternatives. The authors include leading interventional radiologists and gynaecologists from the United Kingdom, Europe and North America.
This state-of-the-art book reviews key issues and methods in medical image perception research through associated techniques, illustrations and examples. Written by key figures in the field, the book covers a range of topics including the history of medical image perception research, the basics of vision and cognition, and dedicated application areas, especially those concerned with the interface between the clinician and the display of medical image data. It summarizes many of the basic techniques used to conduct and analyze medical image perception and observer performance research, allowing readers to understand basic research techniques so they can adopt them for use in their own studies. Written for both newcomers to the field and experienced researchers, this book provides a broad overview of medical image perception, and will serve as a reference volume for years to come.
Reflecting the latest change to the examination, the introduction of single best answer questions (SBAs), this book is completely up-to-date and offers a valuable insight into the new examination format. Providing candidates with a wealth of practice questions and organised by subject matter in the module format, this comprehensive collection of practice SBAs is designed to help candidates test and assess their own knowledge, aiding thorough preparation for the exam. The book opens with an introduction to the exam and includes advice on how to prepare for it and information on what to expect. It also offers helpful advice on question comprehension and answer strategies to help candidates achieve exam success. Written by practising specialist registrars and junior consultants in radiology, and supplemented with detailed explanatory text referenced to major radiology journals and specialist textbooks, Get Through Final FRCR Part A: SBAs is the ideal revision tool for all specialist registrars taking the final FRCR examination.
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Selected as a Doody's Core Title for 2021! Widely regarded as the cornerstone text in the field, the successful series of editions continues to follow the tradition of a clear and comprehensive presentation of the physical principles and operational aspects of medical imaging. The Essential Physics of Medical Imaging, 4th Edition, is a coherent and thorough compendium of the fundamental principles of the physics, radiation protection, and radiation biology that underlie the practice and profession of medical imaging. Distinguished scientists and educators from the University of California, Davis, provide up-to-date, readable information on the production, characteristics, and interactions of non-ionizing and ionizing radiation, magnetic fields and ultrasound used in medical imaging and the imaging modalities in which they are used, including radiography, mammography, fluoroscopy, computed tomography, magnetic resonance, ultrasound, and nuclear medicine. This vibrant, full-color text is enhanced by more than 1,000 images, charts, and graphs, including hundreds of new illustrations. This text is a must-have resource for medical imaging professionals, radiology residents who are preparing for Core Exams, and teachers and students in medical physics and biomedical engineering.
Short compute times are crucial for timely diagnostics in biomedical applications, but lead to a high demand in computing for new and improved imaging techniques. In this book reconfigurable computing with FPGAs is discussed as an alternative to multi-core processing and graphics card accelerators. Instead of adjusting the application to the hardware, FPGAs allow the hardware to also be adjusted to the problem. Acceleration of Biomedical Image Processing with Dataflow on FPGAs covers the transformation of image processing algorithms towards a system of deep pipelines that can be executed with very high parallelism. The transformation process is discussed from initial design decisions to working implementations. Two example applications from stochastic localization microscopy and electron tomography illustrate the approach further. Topics discussed in the book include:* Reconfigurable hardware* Dataflow computing* Image processing* Application acceleration
Since the advent of cross-sectional imaging methods, few works have been devoted to pediatric musculoskeletal imaging, and information is especially limited on the skeletally immature joint. Furthermore, reduced emphasis on pediatric training means that general radiologists are increasingly unfamiliar with normal and abnormal imaging findings in children and adolescents. Knowledge of the imaging appearances of the immature joint is, however, crucial for correct image interpretation. This book covers key selected topics in the imaging evaluation of the skeletally immature joint. The opening chapters consider the current role, advantages, and limitations of each modality in pediatric assessment and present the imaging appearances of anatomic and developmental peculiarities of the growing skeleton. Findings in a wide range of important conditions are then described in a series of richly illustrated chapters that document appearances on diverse imaging studies, from conventional radiography through to modern high-tech modalities. By presenting the essential information on imaging of the immature joint, the authors hope to provide radiologists (musculoskeletal specialists and generalists alike) with a new tool that will assist greatly in overcoming the daily challenges posed by interpretation of pediatric examinations in the twenty-first century. The book will also be of interest to all other specialists involved in the diagnosis and treatment of children and adolescents with articular complaints.
This book describes the roles magnetic resonance imaging (MRI) can play in deep brain stimulation (DBS). DBS therapeutically modulates aberrant neural circuits implicated in a broad range of neurological disorders. Following surgical insertion, an electrode placed into the desired brain target generates constant electricity, analogous to a cardiac pacemaker. Most commonly employed in movement disorders such as Parkinson's disease, dystonia, and tremor, DBS is also being investigated for use in psychiatric and cognitive disorders, including depression and Alzheimer's disease. It is estimated that more than 230,000 patients have undergone DBS surgery worldwide. Imaging techniques, specifically MRI, have played key roles in the preoperative and postoperative aspects of DBS. This book focuses on the established as well as the innovative roles of MRI in DBS. MRI and DBS are first introduced from an historical perspective and a review of the clinical aspects of DBS is performed. Then, the preoperative and postoperative applications of MRI in DBS are covered. The crucial aspect of MRI safety in these patients is also discussed. Finally, possible upcoming MRI applications for patients with DBS are discussed in a future directions chapter. Chapters are written by experts from the University of Toronto, a world leader in the field of DBS, alongside international co-authors to ensure a thorough review of the topics. This is an ideal guide for both clinicians (neurosurgeons, neurologists, psychiatrists, and neuroradiologists) and researchers as well as trainees interested in neuroimaging for DBS.
Sitting an accreditation examination is a daunting prospect for many trainee echocardiographers. And with an increasing drive for the accreditation of echocardiography laboratories and individual echocardiographers, there is a need for an all-encompassing revision aid for those seeking accreditation. The editors of this unique book have produced the only echocardiography revision aid based on the syllabus and format of the British Society of Echocardiography (BSE) national echocardiography accreditation examination and similar examinations administered across Europe. Written by BSE accredited members, fully endorsed by the BSE, and with a foreword by BSE past-president, DR. Simon Ray, this indispensable guide provides a valuable insight into how echocardiography accreditation exams are structured. Crucially, to support students with the more challenging video section of the exam, a companion website provides video cases, and with clear and concisely-structured explanations to all questions, this is an essential tool for anyone preparing to sit an echocardiography examination.
Motion Correction in MR: Correction of Position, Motion, and Dynamic Changes, Volume Eight provides a comprehensive survey of the state-of-the-art in motion detection and correction in magnetic resonance imaging and magnetic resonance spectroscopy. The book describes the problem of correctly and consistently identifying and positioning the organ of interest and tracking it throughout the scan. The basic principles of how image artefacts arise because of position changes during scanning are described, along with retrospective and prospective techniques for eliminating these artefacts, including classical approaches and methods using machine learning. Internal navigator-based approaches as well as external systems for estimating motion are also presented, along with practical applications in each organ system and each MR modality covered. This book provides a technical basis for physicists and engineers to develop motion correction methods, giving guidance to technologists and radiologists for incorporating these methods in patient examinations.
An accessible and user-friendly introduction to using magnetoencephalography (MEG) in neuroscience research. Covers the background to MEG technology, how to use it and how to read results. Provides examples of commonly used applications of MEG. Can be used by students or early career researchers looking for a simple guide to a new method. Packed with illustrative figures including examples of MEG scans. Includes glossary of key terms.
This book will enable practicing physicians and trainees to learn, in a clinically relevant and intellectually stimulating way, guidelines for appropriate ordering of imaging exams. The new edition provides more than 460 clinical case scenarios, organized into subspecialty modules (breast, cardiac, thoracic, gastrointestinal, urologic, women's, pediatric, vascular, musculoskeletal, and neurologic imaging). Each scenario is presented as a quiz in which the reader is invited to select the best option from various imaging modalities. All choices are given ratings of appropriateness and is consistent with the American College of Radiology (ACR) Appropriateness Criteria. Furthermore, a brief solution to each case is included. Finally, over 500 radiologic images are included each associated with a clinical case to illustrate the diagnostic capabilities of the imaging exam. This second edition incorporates new content and revisions to remain consistent with the updated ACR Appropriateness Criteria since the original publication in 2012. It will be an ideal tool both for self-study and for quantitative evaluation of students' knowledge.
Neutron capture therapy (NCT) is based on the ability of the non-radioactive isotope boron-10 to capture thermal neutrons with very high probability and immediately to release heavy particles with a path length of one cell diameter, which in principle allows for tumor cell-selective high-LET particle radiotherapy. This book provides a comprehensive summary of the progress made in NCT in recent years. Individual sections cover all important aspects, including neutron sources, boron chemistry, drugs for NCT, dosimetry, and radiation biology. The use of NCT in a variety of malignancies and also some non-malignant diseases is extensively discussed. NCT is clearly shown to be a promising modality at the threshold of wider clinical application. All of the chapters are written by experienced specialists in language that will be readily understood by all participating disciplines.
This book is an indispensable reference for pediatric and musculoskeletal radiologists, as well as orthopedic surgeons. It offers in depth analysis of pediatric orthopedic imaging, covering normal and aberrant development as well as both common and unusual pediatric disorders. Chapters on the spine, shoulder, elbow, hand and wrist, hip and pelvis, lower extremity, and foot and ankle address site-specific congenital and acquired lesions. Subsequent chapters cover generalized orthopedic diseases such as neurofibromatosis and osteogenesis imperfecta, infectious processes, neuromuscular diseases, musculoskeletal tumors, trauma, and orthopedic procedures. The chapters review associated epidemiology, clinical presentation and evolution, treatment, and differential diagnoses, with in-depht analysis of imaging characteristics. With more than 1800 images, high-quality MRI, CT, and US examples complement the radiographs of a broad variety of musculoskeletal disorders.
E-FAST (extended focused assessment by sonograpy for trauma) represents the basic ultrasonographic approach to any trauma patient. Identification or exclusion of free fluid and air in the abdominal and thoracic cavities plays a pivotal role in deciding the immediate diagnostic and therapeutic path. Learning E-FAST is mandatory for all acute care surgeons and all physicians involved in trauma management. The structure of the book and its practical approach will make it an easy-to-consult and quick reference tool for beginners and a useful support for more experienced professionals.
Modern Oncology, first published in 2001, offers a concise and accessible guide to the key terms in oncology, defining essential terminology and important concepts in a didactic and highly readable style for a wide audience. Extensive use is made throughout of cross-referencing, to aid rapid access to topics of interest and the broad coverage includes such subjects as physics, radiation biology, clinical pharmacology, statistics and clinical epidemiology, tumour biology and molecular biology. Wherever possible, clinically relevant examples and real-world data are included to help the trainee or busy clinician to quickly place their findings in a broad clinical context. The book will be an essential tool to any healthcare professional with a need to understand oncology when seeing patients, reading medical reports or interpreting scientific papers.
"Emergency Musculoskeletal Imaging in Children" is a practical, concise, and easy-to-read guide to the radiologic workup of acute musculoskeletal injuries and conditions in children. The book is conveniently organized by anatomic site and covers all acute injuries and conditions of the upper and lower extremities encountered in the emergency room, outpatient clinic, and office. Close attention is also given to normal findings and anatomic variants that can mimic pathology. More than 600 MR, CT, ultrasound, and radiographic images complement the text. |
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