Introduction to Perfusion Quantification Using Arterial Spin Labelling

Introduction to Perfusion Quantification Using Arterial Spin Labelling PDF Author: Michael Chappell
Publisher: Oxford University Press
ISBN: 0198793812
Category : Medical
Languages : en
Pages : 157

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Book Description
ASL is an increasingly popular tool to study the brain. The aim of this primer is to equip someone new to the field with the knowledge to make informed choices about ASL acquisition and analysis. While providing a stand-alone introduction to this subject, the text can be read with others in the series for a comprehensive overview of neuroimaging.

Introduction to Perfusion Quantification Using Arterial Spin Labelling

Introduction to Perfusion Quantification Using Arterial Spin Labelling PDF Author: Michael Chappell
Publisher: Oxford University Press
ISBN: 0198793812
Category : Medical
Languages : en
Pages : 157

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Book Description
ASL is an increasingly popular tool to study the brain. The aim of this primer is to equip someone new to the field with the knowledge to make informed choices about ASL acquisition and analysis. While providing a stand-alone introduction to this subject, the text can be read with others in the series for a comprehensive overview of neuroimaging.

The Cerebral Circulation

The Cerebral Circulation PDF Author: Marilyn J. Cipolla
Publisher: Biota Publishing
ISBN: 1615047239
Category : Medical
Languages : en
Pages : 82

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Book Description
This e-book will review special features of the cerebral circulation and how they contribute to the physiology of the brain. It describes structural and functional properties of the cerebral circulation that are unique to the brain, an organ with high metabolic demands and the need for tight water and ion homeostasis. Autoregulation is pronounced in the brain, with myogenic, metabolic and neurogenic mechanisms contributing to maintain relatively constant blood flow during both increases and decreases in pressure. In addition, unlike peripheral organs where the majority of vascular resistance resides in small arteries and arterioles, large extracranial and intracranial arteries contribute significantly to vascular resistance in the brain. The prominent role of large arteries in cerebrovascular resistance helps maintain blood flow and protect downstream vessels during changes in perfusion pressure. The cerebral endothelium is also unique in that its barrier properties are in some way more like epithelium than endothelium in the periphery. The cerebral endothelium, known as the blood-brain barrier, has specialized tight junctions that do not allow ions to pass freely and has very low hydraulic conductivity and transcellular transport. This special configuration modifies Starling's forces in the brain microcirculation such that ions retained in the vascular lumen oppose water movement due to hydrostatic pressure. Tight water regulation is necessary in the brain because it has limited capacity for expansion within the skull. Increased intracranial pressure due to vasogenic edema can cause severe neurologic complications and death.

Cerebrovascular Reactivity

Cerebrovascular Reactivity PDF Author: Jean Chen
Publisher: Humana
ISBN: 9781071617625
Category : Medical
Languages : en
Pages : 218

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Book Description
This volume provides a comprehensive overview of the methodology, physiology, and contemporary and novel applications of cerebrovascular reactivity (CVR) measurements. The chapters in this book cover topics such as an introduction of the neurophysiology, neuroimaging, and clinical methods for CVR measurement; the use of CVR methods in the study of aging, cerebrovascular dysfunction, dementia, and brain tumors; and recommendations for measurement protocols and future applications in clinical translation. In Neuromethods series style, chapters include the kind of detail and key advice from the specialists needed to get successful results in your research center and clinical investigation. Thorough and comprehensive, Cerebrovascular Reactivity: Methodological Advances and Clinical Applications is a valuable tool that provides researchers in neuroscience and neurology with the latest resources on the measurement, interpretation, and application of CVR measurement.

Measuring Resting Cerebral Perfusion using Magnetic Resonance Imaging (MRI)

Measuring Resting Cerebral Perfusion using Magnetic Resonance Imaging (MRI) PDF Author: James Duffin
Publisher: Frontiers Media SA
ISBN: 2832550215
Category : Science
Languages : en
Pages : 170

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Book Description
The acquisition of resting cerebral perfusion measures using magnetic resonance imaging (MRI) is one of the assessments of cerebrovascular health used to discern how well patients are coping with anatomical changes such as stenosis, and other factors impacting the supply of blood flow to the brain. Perfusion measures may be obtained using several MRI based techniques including arterial spin labeling (ASL) and dynamic contrast enhanced methods that rely on injected contrast agents such as gadolinium. Recently hypoxia-induced changes in deoxyhemoglobin have been used as a non-invasive contrast agent, measuring the resulting changes in blood oxygen dependent (BOLD) signals with MRI. With each approach, the means through which voxel-wise cerebral perfusion information is derived differs, leading to the development a variety of analysis methods in recent studies. This Research Topic is intended to attract manuscripts that advance the use of resting cerebral perfusion measures in clinical assessments of cerebrovascular health. In pursuit of this aim a better understanding of several aspects are needed.

Physiology, Psychoacoustics and Cognition in Normal and Impaired Hearing

Physiology, Psychoacoustics and Cognition in Normal and Impaired Hearing PDF Author: Pim van Dijk
Publisher: Springer
ISBN: 331925474X
Category : Medical
Languages : en
Pages : 487

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Book Description
​The International Symposium on Hearing is a prestigious, triennial gathering where world-class scientists present and discuss the most recent advances in the field of human and animal hearing research. The 2015 edition will particularly focus on integrative approaches linking physiological, psychophysical and cognitive aspects of normal and impaired hearing. Like previous editions, the proceedings will contain about 50 chapters ranging from basic to applied research, and of interest to neuroscientists, psychologists, audiologists, engineers, otolaryngologists, and artificial intelligence researchers.​

Cognitive Changes and the Aging Brain

Cognitive Changes and the Aging Brain PDF Author: Kenneth M. Heilman
Publisher: Cambridge University Press
ISBN: 1108688497
Category : Medical
Languages : en
Pages :

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Book Description
This book describes the changes in the brain and in cognitive functions that occur with aging in the absence of a neurological, psychiatric, or medical disease. It discusses aging-related changes in many brain functions, including memory, language, sensory perception, motor function, creativity, attention, executive functions, emotions and mood. The neural mechanisms that may account for specific aging-related changes in cognition, perception and behavior are explored, as well as the means by which aging-related cognitive decrements can be managed and possibly ameliorated. Consequently, this book will be of value to clinicians, including neurologists, psychiatrists, geriatricians, primary care physicians, psychologists and speech-language pathologists. In addition, researchers and graduate students who want to learn about the aging brain will find this an indispensable guide.

Hybrid PET/MR Neuroimaging

Hybrid PET/MR Neuroimaging PDF Author: Ana M. Franceschi
Publisher: Springer Nature
ISBN: 3030823679
Category : Medical
Languages : en
Pages : 848

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Book Description
This book serves as a reference and comprehensive guide for PET/MR neuroimaging. The field of PET/MR is rapidly evolving, however, there is no standard resource summarizing the vast information and its potential applications. This book will guide neurological molecular imaging applications in both clinical practice and the research setting. Experts from multiple disciplines, including radiologists, researchers, and physicists, have collaborated to bring their knowledge and expertise together. Sections begin by covering general considerations, including public health and economic implications, the physics of PET/MR systems, an overview of hot lab and cyclotron, and radiotracers used in neurologic PET/MRI. There is then coverage of each major disease/systemic category, including dementia and neurodegenerative disease, epilepsy localization, brain tumors, inflammatory and infectious CNS disorders, head and neck imaging, as well as vascular hybrid imaging. Together, we have created a thorough, concise and up-to-date textbook in a unique, user-friendly format. This is an ideal guide for neuroradiologists, nuclear medicine specialists, medical physicists, clinical trainees and researchers.

Metabolic and Vascular Imaging Biomarkers for Brain Aging and Alzheimer’s Disease

Metabolic and Vascular Imaging Biomarkers for Brain Aging and Alzheimer’s Disease PDF Author: Ai-Ling Lin
Publisher: Frontiers Media SA
ISBN: 2889639053
Category : Science
Languages : en
Pages : 242

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Book Description


Quantitative MRI of the Brain

Quantitative MRI of the Brain PDF Author: Mara Cercignani
Publisher: CRC Press
ISBN: 1315363569
Category : Science
Languages : en
Pages : 342

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Book Description
Building on the success of the first edition of this book, the winner of the 2004 British Medical Association Radiology Medical Book Competition, Quantitative MRI of the Brain: Principles of Physical Measurement gives a unique view on how to use an MRI machine in a new way. Used as a scientific instrument it can make measurements of a myriad of physical and biological quantities in the human brain and body. For each small tissue voxel, non-invasive information monitors how tissue changes with disease and responds to treatment. The book opens with a detailed exposition of the principles of good practice in quantification, including fundamental concepts, quality assurance, MR data collection and analysis and improved study statistical power through minimised instrumental variation. There follow chapters on 14 specific groups of quantities: proton density, T1, T2, T2*, diffusion, advanced diffusion, magnetisation transfer, CEST, 1H and multi-nuclear spectroscopy, DCE-MRI, quantitative fMRI, arterial spin-labelling and image analysis, and finally a chapter on the future of quantification. The physical principles behind each quantity are stated, followed by its biological significance. Practical techniques for measurement are given, along with pitfalls and examples of clinical applications. This second edition of this indispensable 'how to' manual of quantitative MR shows the MRI physicist and research clinician how to implement these techniques on an MRI scanner to understand more about the biological processes in the patient and physiological changes in healthy controls. Although focussed on the brain, most techniques are applicable to characterising tissue in the whole body. This book is essential reading for anyone who wants to use the gamut of modern quantitative MRI methods to measure the effects of disease, its progression, and its response to treatment. Features: The first edition was awarded the book prize for Radiology by the British Medical Association in 2004 Written by an authority in the field: Professor Tofts has an international reputation for quantification in MRI Gives specific ‘how to’ information for implementation of MRI measurement sequence techniques

Stroke E-Book

Stroke E-Book PDF Author: James C. Grotta
Publisher: Elsevier Health Sciences
ISBN: 032369425X
Category : Medical
Languages : en
Pages : 1552

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Book Description
Authored by the world's foremost stroke experts, this classic text brings you fully up to date with current research findings and management approaches for cerebrovascular disease. Stroke: Pathophysiology, Diagnosis, and Management, 7th Edition, covers every aspect of this fast-moving field, and is an ideal resource for stroke specialists, general neurologists, and other medical professionals with an interest in stroke. You'll find expert clinical guidance, comprehensive pathophysiology coverage, data from recent trials, advances in diagnostic tests, full-color CT images, pathology slides, and much more, for a complete picture of today's stroke medicine. - Helps you recognize the clinical manifestations of stroke, use the latest laboratory and imaging studies to arrive at a diagnosis, and generate an effective medical and surgical treatment plan. - Keeps you abreast of the overwhelming volume of studies and guidelines in this dynamic field, providing clear summaries and practical evaluations of all relevant data. - Contains updates throughout, including the latest clinical trials (thrombectomy, DAWN, DEFUSE), genetics research, prevention research, new therapies, and the new guidelines from the ASA. - Includes new slides for lectures, covering basic science, case studies, and interventional treatment overviews. - Features a Key Points summary at the beginning of each chapter so you can quickly find important information. - Provides abundant full-color CT images and pathology slides that help you make efficient and accurate diagnoses.