Ultra-High Field Neuro MRI

Ultra-High Field Neuro MRI

Author: Karin Markenroth Bloch

Publisher: Elsevier

Published: 2023-08-21

Total Pages: 628

ISBN-13: 0323999530

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Ultra-High Field Neuro MRI is a comprehensive reference and educational resource on the current state of neuroimaging at ultra-high field (UHF), with an emphasis on 7T. Sections cover the MR physics aspects of UHF, including the technical challenges and practical solutions that have enabled the rapid growth of 7T MRI. Individual chapters are dedicated to the different techniques that most strongly benefit from UHF, as well as chapters with a focus on different application areas in anatomical, functional and metabolic imaging. Finally, several chapters highlight the neurological and psychiatric applications for which 7T has shown benefits. The book is aimed at scientists who develop MR technologies and support clinical and neuroscience research, as well as users who want to benefit from UHF neuro MR techniques in their work. It also provides a comprehensive introduction to the field. Presents the opportunities and technical challenges presented by MRI at ultra-high field Describes advanced ultra-high field neuro MR techniques for clinical and neuroscience applications Enables the reader to critically assess the specific UHF advantages over currently available techniques at clinical field strengths


Magnetic Resonance Imaging at Ultra High Field

Magnetic Resonance Imaging at Ultra High Field

Author: Richard Ely Burgess

Publisher:

Published: 2004

Total Pages:

ISBN-13:

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Abstract: Even before the development of magnetic resonance imaging, scientists and engineers repeatedly predicted that, despite the theoretical potential of high field, physical and engineering challenges would prevent the practical realization of gains in signal to noise. Many of the arguments used to disparage high field MRI can be divided into issues of uniform excitation, image distortion, and patient safety. In the former category lies challenges such as RF penetration limitations, dielectric resonances, coil self-resonance, coil-sample interactions, and RF power requirements, which may prevent uniform B1 can best be studied with numerical modeling techniques. Within the second category are effects such as chemical shift artifact, susceptibility distortions, and contrast convergence that can be well studied through analytic techniques and methodical manipulation of imaging parameters. In the category of safety belong RF power deposition and magnetohydrodynamic effects. In this thesis, issues of static field safety will be exhaustively explored and investigation of image contrast and quality will be undertaken to assess the potential of the 8 Tesla system for human neuroimaging. This thesis will specifically examine the theoretical risk of cardiac arrhythmia from induced currents and demonstrate the negligible cardiac, cognitive, and physiological bioeffects through animal and human studies. The extent of signal to noise ratio enhancement possible at 8 Tesla will be assessed and harnessed to obtain high resolution whole brain images. In the end, experimental results and analysis show that, despite the presence of artifact, high resolution images of the human brain with unique contrast can be safely obtained at 8 Tesla.


Looking Inside the Brain

Looking Inside the Brain

Author: Denis Le Bihan

Publisher: Princeton University Press

Published: 2014-11-30

Total Pages: 213

ISBN-13: 1400852161

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The remarkable story of how today's brain scanning techniques were developed, told by one of the field's pioneers It is now possible to witness human brain activity while we are talking, reading, or thinking, thanks to revolutionary neuroimaging techniques like magnetic resonance imaging (MRI). These groundbreaking advances have opened infinite fields of investigation—into such areas as musical perception, brain development in utero, and faulty brain connections leading to psychiatric disorders—and have raised unprecedented ethical issues. In Looking Inside the Brain, one of the leading pioneers of the field, Denis Le Bihan, offers an engaging account of the sophisticated interdisciplinary research in physics, neuroscience, and medicine that have led to the remarkable neuroimaging methods that give us a detailed look into the human brain. Introducing neurological anatomy and physiology, Le Bihan walks readers through the historical evolution of imaging technology—from the x-ray and CT scan to the PET scan and MRI—and he explains how neuroimaging uncovers afflictions like stroke or cancer and the workings of higher-order brain activities, such as language skills. Le Bihan also takes readers on a behind-the-scenes journey through NeuroSpin, his state-of-the-art neuroimaging laboratory, and goes over the cutting-edge scanning devices currently being developed. Considering what we see when we look at brain images, Le Bihan weighs what might be revealed about our thoughts and unconscious, and discusses how far this technology might go in the future. Beautifully illustrated in color, Looking Inside the Brain presents the trailblazing story of the scanning techniques that provide keys to previously unimagined knowledge of our brains and our selves.


Ultra High Field Magnetic Resonance Imaging

Ultra High Field Magnetic Resonance Imaging

Author: Pierre-Marie Robitaille

Publisher: Springer Science & Business Media

Published: 2007-12-31

Total Pages: 487

ISBN-13: 0387496483

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The foundation for understanding the function and dynamics of biological systems is not only knowledge of their structure, but the new methodologies and applications used to determine that structure. This volume in Biological Magnetic Resonance emphasizes the methods that involve Ultra High Field Magnetic Resonance Imaging. It will interest researchers working in the field of imaging.


Microstructural Parcellation of the Human Cerebral Cortex

Microstructural Parcellation of the Human Cerebral Cortex

Author: Stefan Geyer

Publisher: Springer Science & Business Media

Published: 2013-07-04

Total Pages: 260

ISBN-13: 3642378242

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Unraveling the functional properties of structural elements in the brain is one of the fundamental goals of neuroscientific research. In the cerebral cortex this is no mean feat, since cortical areas are defined microstructurally in post-mortem brains but functionally in living brains with electrophysiological or neuroimaging techniques – and cortical areas vary in their topographical properties across individual brains. Being able to map both microstructure and function in the same brains noninvasively in vivo would represent a huge leap forward. In recent years, high-field magnetic resonance imaging (MRI) technologies with spatial resolution below 0.5 mm have set the stage for this by detecting structural differences within the human cerebral cortex, beyond the Stria of Gennari. This provides the basis for an in vivo microanatomical brain map, with the enormous potential to make direct correlations between microstructure and function in living human brains. This book starts with Brodmann’s post-mortem map published in the early 20th century, moves on to the almost forgotten microstructural maps of von Economo and Koskinas and the Vogt-Vogt school, sheds some light on more recent approaches that aim at mapping cortical areas noninvasively in living human brains, and culminates with the concept of “in vivo Brodmann mapping” using high-field MRI, which was introduced in the early 21st century.


High-Resolution Neuroimaging

High-Resolution Neuroimaging

Author: Ahmet Mesrur Halefoğlu

Publisher: BoD – Books on Demand

Published: 2018-03-14

Total Pages: 176

ISBN-13: 9535138650

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Dr. Ahmet Mesrur Halefoğlu mostly deals with research fields in body imaging and neuroradiology with multidetector computed tomography and high-resolution magnetic resonance imaging. He has served as postdoctoral research fellow at Johns Hopkins Hospital. Currently, he is working as an associate professor of radiology in Istanbul, Turkey. He has more than 50 high-impact-factor publications and has written 3 book chapters. He is a member of Turkish Society of Radiology and European Society of Radiology. During the recent years, there have been major breakthroughs in MRI due to developments in scanner technology and pulse sequencing. These important achievements have led to remarkable improvements in neuroimaging and advanced techniques, including diffusion imaging, diffusion tensor imaging, perfusion imaging, magnetic resonance spectroscopy, and functional MRI. These advanced neuroimaging techniques have enabled us to achieve invaluable insights into tissue microstructure, microvasculature, metabolism, and brain connectivity.


Magnetic Resonance Neuroimaging

Magnetic Resonance Neuroimaging

Author: Michel Modo

Publisher: Humana Press

Published: 2016-08-23

Total Pages: 598

ISBN-13: 9781493957729

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The advent of non-invasive imaging technology, such as magnetic resonance imaging (MRI), has allowed biologists and clinicians to make great strides in unraveling the secrets of the brain. In Magnetic Resonance Neuroimaging: Methods and Protocols, expert researchers in the field provide a comprehensive collection of experimental MRI protocols that can be used to non-invasively interrogate the healthy and diseased brain. The chapters are divided into general techniques, such as the measurement of relaxivity, magnetic resonance spectroscopy, diffusion tensor imaging, and MR reporter genes, as well as specific applications in brain imaging, for example, phenotyping transgenic animals, detecting amyloid plaques, and fMRI in psychiatry. As a volume in the highly successful Methods in Molecular BiologyTM series, this work contains the type of detailed description and implementation advice that is crucial for getting optimal results. Thorough and cutting-edge, Magnetic Resonance Neuroimaging: Methods and Protocols serves neuroscientists, clinical neurologists, psychiatrists, and radiologists with an excellent compendium of methods easily applied to both animal and human studies and certain to be an excellent resource for translational research.


Neuroimaging in Developmental Clinical Neuroscience

Neuroimaging in Developmental Clinical Neuroscience

Author: Judith M. Rumsey

Publisher: Cambridge University Press

Published: 2009-02-19

Total Pages: 473

ISBN-13: 1139476750

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Modern neuroimaging offers tremendous opportunities for gaining insights into normative development and a wide array of developmental neuropsychiatric disorders. Focusing on ontogeny, this text covers basic processes involved in both healthy and atypical maturation, and also addresses the range of neuroimaging techniques most widely used for studying children. This book will enable you to understand normative structural and functional brain maturation and the mechanisms underlying basic developmental processes; become familiar with current knowledge and hypotheses concerning the neural bases of developmental neuropsychiatric disorders; and learn about neuroimaging techniques, including their unique strengths and limitations. Coverage includes normal developmental processes, atypical processing in developmental neuropsychiatric disorders, ethical issues, neuroimaging techniques and their integration with psychopharmacologic and molecular genetic research approaches, and future directions. This comprehensive volume is an essential resource for neurologists, neuropsychologists, psychiatrists, pediatricians, and radiologists concerned with normal development and developmental neuropsychiatric disorders.