Totally Accessible Mri

This practical guide offers an accessible introduction to the principles of MRI physics. Each chapter explains the why and how behind MRI physics. Readers will understand how altering MRI parameters will have many different consequences for image quality and the speed in which images are generated. Practical topics, selected for their value to clinical practice, include progressive changes in key MRI parameters, imaging time, and signal to noise ratio. A wealth of high quality illustrations, complemented by concise text, enables readers to gain a thorough understanding of the subject without requiring prior in-depth knowledge.

This practical guide offers an accessible introduction to the principles of MRI physics. Each chapter explains the why and how behind MRI physics. Readers will understand how altering MRI parameters will have many different consequences for image quality and the speed in which images are generated. Practical topics, selected for their value to clinical practice, include progressive changes in key MRI parameters, imaging time, and signal to noise ratio. A wealth of high quality illustrations, complemented by concise text, enables readers to gain a thorough understanding of the subject without requiring prior in-depth knowledge.

This fifth edition of the most accessible introduction to MRI principles and applications from renowned teachers in the field provides an understandable yet comprehensive update. Accessible introductory guide from renowned teachers in the field Provides a concise yet thorough introduction for MRI focusing on fundamental physics, pulse sequences, and clinical applications without presenting advanced math Takes a practical approach, including up-to-date protocols, and supports technical concepts with thorough explanations and illustrations Highlights sections that are directly relevant to radiology board exams Presents new information on the latest scan techniques and applications including 3 Tesla whole body scanners, safety issues, and the nephrotoxic effects of gadolinium-based contrast media

This book covers all aspects of low field MRI, describing its advantages, problems and prerequisites. Individual chapters are devoted to site planning, safety considerations, coils, imaging technique, image quality optimization, the imaging of different anatomic regions and likely future developments. The factors that must be borne in mind when selecting a low field system are clearly identified and detailed attention is paid to the applications for which such a system is adequate. The focus on high field systems has led to a situation where only a few systems with field strengths lower than 0.5 T survive. Some of these systems possess high field features such as multichannel coils and strong gradients; furthermore, sequence technology and image processing techniques taken from higher field strength systems have resulted in impressive imaging capabilities. While 1.5-T systems will probably continue to remain the standard, low field systems offer advantages such as the feasibility of dynamic joint examinations, improvement of T1 contrast, reduction of “missile effects” and decreased radiofrequency exposure. Low field strength MRI consequently has the potential to contribute to optimal patient management and given comparable image quality, its application may become an issue of patient safety. This book will be an invaluable asset to all who are involved in planning and/or running a low field strength MRI facility.

Since the first edition of MRI in Practice was published in 1993, the book has become the standard text for radiographers, technologists, radiology residents, radiologists and even sales representatives on the subject of magnetic resonance imaging. This text is essential reading on postgraduate 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 maximized. This third edition captures recent advances, and coverage includes: parallel imaging techniques, functional imaging techniques and new sequences such as balanced gradient echo. Building on the success of the first two editions, the authors have now re-conceptualized the design of the book. The third edition contains a wealth of additional illustrations and chapter enhancements draw on the depth of the authors' experience in delivering MRI education and training. To promote accessibility of difficult concepts, extended analogies have been developed to relate the complexities of MRI physics to everyday phenomena. Learning points are clearly articulated, and frequent summaries are included to assist the reader in digesting the information.

MRI provides the best means of imaging the bone marrow directly and of non-invasively assessing its composition. Normal age-related bone marrow changes, alterations related to red marrow reconversion, and pathological bone marrow processes generally conform to certain patterns that reflect the underlying marrow changes and can be clearly recognized on MR images. In addition to conventional pulse sequences, advanced MRI techniques such as Dynamic Contrast-Enhanced MRI and Diffusion-Weighted Imaging depict marrow changes at the microvascular and cellular level respectively. This book provides radiologists with in-depth information on the MRI appearances of normal, abnormal and treated marrow following a structured, pattern-based approach. MRI findings for various diseases that affect the bone marrow, particularly those of a malignant nature, are presented in detail. MRI pattern recognition not only offers a systematic approach to image interpretation and diagnosis but also has prognostic implications with regard to some disease entities. Each chapter includes a wealth of high-quality images, together with Key Points summarizing the most important information. In addition to radiologists, practitioners with an interest in hematology and oncology will find this textbook-atlas to be a valuable resource for the latest, clinically relevant advances in bone marrow imaging.

Lung diseases are leading causes of death and disability globally, with about 65 million people suffering from COPD, and 334 million from asthma. Each year, tens of millions of people develop and can die from lung infections such as pneumonia and TB. Systemic inflammation may induce and exacerbate local inflammatory diseases in the lungs, and local inflammation can in turn cause systemic inflammation. There is increasing evidence of the coexistence of systemic and local inflammation in patients suffering from asthma, COPD, and other lung diseases, and the co-morbidity of two or more local inflammatory diseases often occurs. For example, rheumatoid arthritis frequently occurs together with, and promotes the development of, pulmonary hypertension. This co-morbidity significantly impacts quality of life, and can result in death for some patients. Current treatment options for lung disease are neither always effective, nor condition-specific; there is a desperate need for novel therapeutics in the field. Additionally, the molecular and physiological significance of most major lung diseases is not well understood, which further impedes development of new treatments, especially in the case of coexistent lung diseases with other inflammatory diseases. Great progress has been made in recent years in many areas of the field, particularly in understanding the molecular geneses, regulatory mechanisms, signalling pathways, and cellular processes within lung disease, as well as basic and clinical technology, drug discovery, diagnoses, treatment options, and predictive prognoses. This is the first text to aggregate these developments. In two comprehensive volumes, experts from all over the world present state-of-the-art advances in the study of lung inflammation in health and disease. Contributing authors cover well-known as well as emerging topics in basic, translational, and clinical research, with the aim of providing researchers, clinicians, professionals, and students with new perspectives and concepts. The editors hope these books will also help to direct future research in lung disease and other inflammatory diseases, and result in the development of novel therapeutics.

This comprehensive encyclopedia provides a thorough overview of the human brain and nervous system—the body's "CPU and data network." It covers basic anatomy and function, diseases and disorders, treatment options, wellness concepts, and key individuals in the fields of neurology and neuroscience. Written to be accessible to high school and college students and general readers, this three-volume encyclopedia provides a sweeping overview of the brain, nervous system, and their diseases. Bringing together contributions from leading neuroscientists, neurologists, family physicians, psychologists, and public health professionals, the work covers both brain anatomy and function and neurological disorders, addressing how underlying processes—whether biological, developmental, environmental, or neurodegenerative—manifest themselves. Roughly a third of the entries are about neuroscience and how neurons "talk" to each other in brain circuits to provide normal function. Another group of entries discusses abnormalities or dysfunctions of the brain that develop into disorders or diseases, while a third group focuses on research and experimental procedures commonly used to study the nervous system. The encyclopedia also explores its subject from a wellness perspective, explaining actions that can prevent neurological disorders and injuries and promote general nervous system health. By addressing both ends of the spectrum, the work presents a holistic perspective that will appeal to a broad range of readers.