Download or read book Quantitative Magnetic Resonance Imaging written by Nicole Seiberlich and published by Academic Press. This book was released on 2020-11-18 with total page 1094 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantitative Magnetic Resonance Imaging is a ‘go-to’ reference for methods and applications of quantitative magnetic resonance imaging, with specific sections on Relaxometry, Perfusion, and Diffusion. Each section will start with an explanation of the basic techniques for mapping the tissue property in question, including a description of the challenges that arise when using these basic approaches. For properties which can be measured in multiple ways, each of these basic methods will be described in separate chapters. Following the basics, a chapter in each section presents more advanced and recently proposed techniques for quantitative tissue property mapping, with a concluding chapter on clinical applications. The reader will learn: The basic physics behind tissue property mapping How to implement basic pulse sequences for the quantitative measurement of tissue properties The strengths and limitations to the basic and more rapid methods for mapping the magnetic relaxation properties T1, T2, and T2* The pros and cons for different approaches to mapping perfusion The methods of Diffusion-weighted imaging and how this approach can be used to generate diffusion tensor maps and more complex representations of diffusion How flow, magneto-electric tissue property, fat fraction, exchange, elastography, and temperature mapping are performed How fast imaging approaches including parallel imaging, compressed sensing, and Magnetic Resonance Fingerprinting can be used to accelerate or improve tissue property mapping schemes How tissue property mapping is used clinically in different organs Structured to cater for MRI researchers and graduate students with a wide variety of backgrounds Explains basic methods for quantitatively measuring tissue properties with MRI - including T1, T2, perfusion, diffusion, fat and iron fraction, elastography, flow, susceptibility - enabling the implementation of pulse sequences to perform measurements Shows the limitations of the techniques and explains the challenges to the clinical adoption of these traditional methods, presenting the latest research in rapid quantitative imaging which has the possibility to tackle these challenges Each section contains a chapter explaining the basics of novel ideas for quantitative mapping, such as compressed sensing and Magnetic Resonance Fingerprinting-based approaches

Download or read book Magnetic Resonance Techniques in Clinical Trials in Multiple Sclerosis written by M. Filippi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have entered an exciting period in the study of multiple sclerosis and its treatment. Central to this progress has been the introduction of magnetic reso nance techniques. When Young and his colleagues published the first images of the brain in multiple sclerosis at the end of 1981, it was at once obvious that magnetic resonance imaging would playa major role in diagnosis. Intuitively one felt that it would also have a role in increasing our understanding of the pathogenesis of the disease and in monitoring treatment. And so it has proved. Important problems however remain, perhaps the most important of which at present is the weak predictive power of standard magnetic resonance ima ging methods in determining the possibility of progression of impairment and disability. Recently, there have been advances which promise to overcome some of these problems, but decisions about what approach to adopt in selecting patients for clinical trials and which techniques to use in monitoring treatment during their course are still difficult. In this book, Dr. Filippi and his colleagues have assembled an outstanding group of contributors whose work is central to the progress that is being made. The coverage of the issues involved in the use of magnetic resonance techniques in assessing therapeutic effect is comprehensive and, though the field is chan ging rapidly, the principles and much of the detail in the book are likely to have lasting value.

Download or read book Advances in Imaging of Multiple Sclerosis An Issue of Neuroimaging Clinics of North America E Book written by Alex Rovira and published by Elsevier Health Sciences. This book was released on 2017-04-13 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This issue of Neuroimaging Clinics of North America focuses on Imaging of Multiple Sclerosis: Diagnosis and Management, and is edited by Dr. Àlex Rovira Cañellas. Articles will include: Multiple Sclerosis: Epidemiological, Clinical and Therapeutic Aspects; Brain and Spinal Cord MR Imaging Features in Multiple Sclerosis and Variants; Neuromyelitis Optica Spectrum Disorders; Radiologically Isolated Syndrome; MRI in Monitoring and Predicting Treatment Response in Multiple Sclerosis; Cortical Grey Matter MR Imaging in Multiple Sclerosis; Brain Atrophy in Multiple Sclerosis: Technical Aspects and Clinical Relevance; Iron Mapping in Multiple Sclerosis; Microstructural MR Techniques in Multiple Sclerosis; Molecular and Metabolic Imaging in Multiple Sclerosis; Insights from Ultra-high Field Imaging in Multiple Sclerosis; Pediatric Multiple Sclerosis: Distinguishing Clinical and MRI Features, and more!

Download or read book Magnetic Resonance Imaging Advances in Multiple Sclerosis written by Rohit Bakshi and published by . This book was released on 2005 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Magnetic Resonance Spectroscopy in Multiple Sclerosis written by M. Filippi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have witnessed dramatic advances in the development and use of magnetic resonance imaging (MRI) techniques that can provide quantitative measures with some degree of pathological specificity for the heterogeneous substrates of multiple sclerosis (MS). Magnetic resonance spectroscopy (MRS) is one of the most promising of these techniques. Thanks to MRS, axonal damage is no longer considered an end-stage phenomenon typical of only the most destructive lesions and the most unfortunate cases, but rather as a major component of the MS pathology of lesions and normal-appearing white matter at all the phases of the disease. This new concept is rapidly changing our understanding of MS pathophysiology and, as a consequence, the therapeutic strategies to modify the disease course favorably. Many of the authors have pionereed the use of MRS in MS, thus contributing to the foundation of the "axonal hypothesis".

Download or read book New Frontiers of MR based Techniques in Multiple Sclerosis written by Massimo Filippi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past few years there have been impressive advances in the implementation of modern MRI techniques for the assessment of MS patients with the ultimate goal to define MRI markers of MS evolution. The authors of this volume not only review these new techniques, such as magnetization transfer (MT) MRI, diffusion-weighted (DW) MRI and proton MR spectroscopy (MRS), that are increasingly being used to monitor MS evolution, but also those, such as functional MRI (fMRI), cell-specific MRI, perfusion MRI, and microscopic imaging with ultra-high field MRI, that are emerging as additional promising tools for improving our understanding of MS pathophysiology. Strengths and weaknesses of all these modern quantitative MRI techniques for the study of MS are extensively covered in this book. The book also provides a valuable summary of the state of the art.

Download or read book Neurodegeneration in Multiple Sclerosis written by M. Filippi and published by Springer Science & Business Media. This book was released on 2008-02-01 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by world-renowned scientists, the volume provides a state-of-the-art on the most recent MRI techniques related to MS, and it is an indispensable tool for all those working in this field. The context in which this book exists is that there is an increasing perception that modern MR methodologies should be more extensively employed in clinical trials to derive innovative information.

Download or read book Multiple Sclerosis written by Donald E. Goodkin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the therapeutic developments in clinical trial design that have resulted in new treatment options for patients suffering from MS. Important ethical considerations that arise with the new treatments are included, as well as the perspective on the emergence of MS as a treatable disease.

Download or read book Magnetic Resonance Spectroscopy and Imaging in Neurochemistry written by Herman Bachelard and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Advances in Neurochemistry series was initiated for a readership of neuroscientists with a background in biochemistry. True to this concept, the present volume brings together various applications of magnetic resonance technology to advance our knowledge of how the nervous system functions. Whether at the cellular, tissue slice, or intact organism level. magnetic resonance techniques are by their nature noninvasive, and thus provide a window through which biochemical reactions can be viewed without grinding, binding, or other wise perturbing ongoing physiological processes. As technological improve ments in methodology, such as higher and more uniform magnetic fields, novel paradigms for data analysis, etc. , are made, we find increased sensitivity and improved temporal and spatial resolution for functional imaging techniques on the one hand, and better separation of signals that identify chemical properties in spectral shift studies, on the other. It is upon knowledge such as is described in the twelve chapters that follow, that further advances in scientific discovery and the biomedical applications of tomorrow will be based. We are grateful to Dr. Bachelard, the Volume Editor, and to the authors of the individual chapters for their efforts. We also note that with this volume Dr. Morris Aprison, a co-founder of the Advances in Neurochemistry series has stepped down and acknowledge with thanks his major role in its inception. In addition, we thank our past and present Advisory Editors. Bernard W. Agranoff Kunihiko Suzuki Series Editors ix CONTENTS LIST OF SYMBOLS AND GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . XXI INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Download or read book Magnetic Resonance in Multiple Sclerosis written by David H. Miller and published by Cambridge University Press. This book was released on 1997-07-17 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic resonance (MR) imaging and spectroscopy are powerful tools for demonstrating and monitoring pathological processes of the brain and spinal cord. Multiple sclerosis (MS), a common and as yet incurable disease of the brain and spinal cord, is being studied intensively using these techniques. They perform a major role in facilitating the diagnosis, understanding the mechanisms of symptoms, and monitoring the effect of new treatments. Written by experts in the field, this extensively illustrated text provides a comprehensive review of the benefits and limitations of MR in the study of MS. Coverage ranges through the contributions of MR, the variety of techniques available, diagnosis and differential diagnosis, MR as a predictor of the clinical course, MR views of pathophysiology, and finally monitoring new treatment efficacy.

Download or read book Advances in Multiple Sclerosis written by Sten Fredrikson and published by CRC Press. This book was released on 1999-09-01 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Looking at the lastest advances in research into multiple sclerosis, from genetics to the use of magnetic resonance imaging and the organization of MS care.

Download or read book MR Imaging in White Matter Diseases of the Brain and Spinal Cord written by Massimo Filippi and published by Springer Science & Business Media. This book was released on 2005-12-29 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent decades, the use of neuroimaging techniques has resulted in outstanding progress in the diagnosis and management of neurological diseases, and this is particularly true of those diseases that affect the white matter of the brain and spinal cord. This book, written by internationally acclaimed experts, comprises a series of comprehensive and up-to-date reviews on the use of MR imaging in these major neurological conditions. The diverse available MR techniques, such as magnetization transfer MRI, diffusion-weighted MRI, MR spectroscopy, functional MRI, cell-specific MRI, perfusion MRI, and microscopic imaging with ultra-high field MRI, offer an extraordinarily powerful means of gaining fundamental in vivo insights into disease processes. The strengths and weaknesses of all these techniques in the study of multiple sclerosis and other relevant diseases are extensively considered. After an introductory section on neuroimaging technology, subsequent sections address disorders of myelination, demyelinating diseases, immune-mediated disorders, and white matter disorders related to aging and other conditions. This book provides a valuable summary of the state of the art in the field, and defines important areas for future research.

Download or read book Advances in Diffusion Magnetic Resonance Imaging with Application to Multiple Sclerosis written by Diana Valdés Cabrera and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiple Sclerosis (MS) is a chronic neurodegenerative disease which is mainly characterized by inflammation, demyelination, and axonal loss. Conventional Magnetic Resonance Imaging (MRI) has become the most established imaging tool in the diagnosis and follow-up of MS in clinical practice. However, the high sensitivity of these standard MRI techniques is mainly restricted to the detection of focal demyelinating MS lesions, mainly in white matter (WM), as they fail to depict further damage in normal appearing WM (NAWM) and grey matter (GM) involvement. More advanced quantitative MRI methods, including diffusion MRI, have been applied in MS research and they have improved the detection and interpretation of heterogeneous MS pathologic features in lesions and in normal-appearing brain tissue. Abnormal diffusion tensor imaging (DTI) metrics, although not fully pathologically specific, have helped characterize the disease burden with progression and they have shown correlations with several disability and cognitive measures in MS. So far, MS DTI studies with consistent results and interpretations are still uncommon in the clinical practice. Furthermore, research diffusion MRI studies properly targeting small brain structures such as the limbic system WM and deep GM, or even areas with crossing fibers in MS are also rare and show conflicting results. This is largely because these experiments require careful considerations regarding acquisition protocols (e.g., high spatial resolution, imaging artifacts) and post-processing strategies (e.g., eddy currents correction, tensor fitting, higher order models). This thesis aims to address these MS literature gaps and limitations by using advanced diffusion MRI methods in two cross sectional datasets of individuals diagnosed with MS over four chapters, the first in cohort 1 at 4.7 T and the final three in cohort 2 at 3 T: (i) high resolution DTI tractography of limbic WM tracts, (ii) CSF-suppressed DTI tractography of the fornix, (iii) high iii resolution DTI of the hippocampus, and (iv) novel b-tensor encoding diffusion MRI in lesions and NAWM. Data presented here reveal new information on how small WM and GM structures such as the fornix and the hippocampus, which are linked to cognitive and mood disorders in several neurodegenerative diseases, appear to be affected early and consistently in MS regardless of the patient's phenotypic classification and disability status. Cross sectional analyses in the two MS cohorts studied here reveal robust reductions of fornix volume and abnormal diffusion metrics such as low fractional anisotropy (FA) and higher mean (MD), axial (AD), and radial (RD) diffusivities when compared to controls. Other affected limbic areas in terms of atrophy or microstructure include the uncinate fasciculus, thalamus and hippocampus, with fornix RD and thalamus atrophy standing out as predictors of cognitive impairment in MS. Hippocampus atrophy, abnormal diffusion metrics and long T2 values are reported in MS patients with cognitive impairment (CI), while greater regional mean diffusivity (MD), potentially indicative of demyelination, is evident in MS subjects independent of their CI status when compared to controls. This regional hippocampus analysis shows elevated MD and T2 relaxometry values, which are variable and widespread in MS, greater in patients with CI and high lesion volume, and linked with disability in the case of T2 relaxometry. In addition, b-tensor diffusion metrics complement standard metrics, and they differ between lesions and NAWM and between different WM fiber configurations in MS and controls. In conclusion, this thesis outlines a repertoire of advanced diffusion MRI methods, which has shown important insight about the limbic system microstructural changes as well as lesion and NAWM alterations in MS and their relationships with memory and behaviour.

Download or read book Magnetic Resonance Imaging of the Brain and Spine written by Scott W. Atlas and published by Lippincott Williams & Wilkins. This book was released on 2009 with total page 1976 pages. Available in PDF, EPUB and Kindle. Book excerpt: Established as the leading textbook on imaging diagnosis of brain and spine disorders, Magnetic Resonance Imaging of the Brain and Spine is now in its Fourth Edition. This thoroughly updated two-volume reference delivers cutting-edge information on nearly every aspect of clinical neuroradiology. Expert neuroradiologists, innovative renowned MRI physicists, and experienced leading clinical neurospecialists from all over the world show how to generate state-of-the-art images and define diagnoses from crucial clinical/pathologic MR imaging correlations for neurologic, neurosurgical, and psychiatric diseases spanning fetal CNS anomalies to disorders of the aging brain. Highlights of this edition include over 6,800 images of remarkable quality, more color images, and new information using advanced techniques, including perfusion and diffusion MRI and functional MRI. A companion Website will offer the fully searchable text and an image bank.

Download or read book Multiple Sclerosis written by Institute of Medicine and published by National Academies Press. This book was released on 2001-08-10 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiple sclerosis is a chronic and often disabling disease of the nervous system, affecting about 1 million people worldwide. Even though it has been known for over a hundred years, no cause or cure has yet been discovered-but now there is hope. New therapies have been shown to slow the disease progress in some patients, and the pace of discoveries about the cellular machinery of the brain and spinal cord has accelerated. This book presents a comprehensive overview of multiple sclerosis today, as researchers seek to understand its processes, develop therapies that will slow or halt the disease and perhaps repair damage, offer relief for specific symptoms, and improve the abilities of MS patients to function in their daily lives. The panel reviews existing knowledge and identifies key research questions, focusing on: Research strategies that have the greatest potential to understand the biological mechanisms of recovery and to translate findings into specific strategies for therapy. How people adapt to MS and the research needed to improve the lives of people with MS. Management of disease symptoms (cognitive impairment, depression, spasticity, vision problems, and others). The committee also discusses ways to build and financially support the MS research enterprise, including a look at challenges inherent in designing clinical trials. This book will be important to MS researchers, research funders, health care advocates for MS research and treatment, and interested patients and their families.

Download or read book Primary Progressive Multiple Sclerosis written by M. Filippi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Why are there no effective treatments for my condition? Why do researchers exclude patients with primary progressive multiple sclerosis from enrolling in clinical trials? Please let me know if you hear of studies that I might be allowed to enter or treatments that I could try for my condition. " Thus, in recent years, the sad lament of the patient with primary progressive MS (PPMS). This variant, often in the guise of a chronic progressive myelopathy or, less commonly, progressive cerebellar or bulbar dysfunction, usually responds poorly to corticosteroids and rarely seems to benefit to a significant degree from intensive immunosuppressive treatments. In recent years, most randomized clin ical trials have excluded PPMS patients on two counts. Clinical worsening devel ops slowly in PPMS and may not be recognized during the course of a 2-or 3-year trial even in untreated control patients. This factor alone adds to the potential for a type 2 error or, at the very least, inflates the sample size and duration of the trial. In addition, there is mounting evidence that progressive axonal degeneration and neuronal loss (rather than active, recurrent inflammation) may be important components of the pathology in this form of the disease. Although contemporary trials are evaluating whether PPMS patients may benefit from treatment with the ~-interferons and glatiramer acetate, preliminary, uncontrolled clinical experi ence suggests that the results may not be dramatic.

Download or read book Quantitative MRI of the Spinal Cord written by Julien Cohen-Adad and published by Academic Press. This book was released on 2014-01-16 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantitative MRI of the Spinal Cord is the first book focused on quantitative MRI techniques with specific application to the human spinal cord. This work includes coverage of diffusion-weighted imaging, magnetization transfer imaging, relaxometry, functional MRI, and spectroscopy. Although these methods have been successfully used in the brain for the past 20 years, their application in the spinal cord remains problematic due to important acquisition challenges (such as small cross-sectional size, motion, and susceptibility artifacts). To date, there is no consensus on how to apply these techniques; this book reviews and synthesizes state-of-the-art methods so users can successfully apply them to the spinal cord. Quantitative MRI of the Spinal Cord introduces the theory behind each quantitative technique, reviews each theory’s applications in the human spinal cord and describes its pros and cons, and suggests a simple protocol for applying each quantitative technique to the spinal cord. Chapters authored by international experts in the field of MRI of the spinal cord Contains “cooking recipes —examples of imaging parameters for each quantitative technique—designed to aid researchers and clinicians in using them in practice Ideal for clinical settings