Ultrahigh Field Magnetic Resonance Imaging
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Ultra High Field Magnetic Resonance Imaging
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Author : Pierre-Marie Robitaille
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-12-31
Ultra High Field Magnetic Resonance Imaging written by Pierre-Marie Robitaille and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-12-31 with Medical categories.
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.
Ultra High Field Magnetic Resonance Imaging Mri Instrumentation And Clinical Implementation
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Author : Shaileshkumar B. Raval, Ph.D.
language : en
Publisher: Index of Sciences Ltd
Release Date : 2021-04-06
Ultra High Field Magnetic Resonance Imaging Mri Instrumentation And Clinical Implementation written by Shaileshkumar B. Raval, Ph.D. and has been published by Index of Sciences Ltd this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-06 with Science categories.
Magnetic Resonance Imaging“Magnetic Resonance Imaging” (MRI) is the most widely clinically used diagnostic tool for soft tissue imaging. This advanced technology and its applications are under continuous research and development, ranging from lower fields to ultra-high fields to the highest possible fields for preclinical (animal) and human imaging. Formerly known as Nuclear Magnetic Resonance Imaging (NMR), with the rising demands of clinical diagnosis requirements, it is under constant development and innovation in hospitals for populations around the world because of constant desire to go to higher fields that lead to unique research and clinical applications that aren’t achievable with other commercially and or research technologies. The basics of MRIThe human body is rich in hydrogen, when a human body is subjected to a large magnetic field, many of the free hydrogen nuclei align themselves with the direction of the magnetic field. MRI works on the principle of the directional magnetic field associated with charged particles in motion. MRI is also known as nuclear magnetic resonance imaging, a technique used to create images of parts of the human body based on the resonance of nuclei in motion under the effect of a magnetic field. Overview of the bookThis book’s lucid style makes it an easy read. It is written in a simple and comprehensible way, making it easy to followand readfor a large audience ranging from students to researchers. The areas covered include an overview of the theories and practical aspects of High-Field MRIwith each chapter Introduction, Challenges, Objectives, Methods(Materials), Results, Discussion, FutureWworks,including basic concepts, along with research-oriented and clinical concepts, technologies that are researched and developed, and implemented clinically, and published nationally and internationally recognized conferences, and publications with global awards recognition from ISMRM, TTS, and many other academic and industry organizationsthat are recognized worldwide. In this book, unexplored research theories are described along with a list of products, project developments, and completion of major and unattempted theories, which are considered to be challenging in high-field MRI. These unexplored research theories are further delved into to emerge with practical and translational products, as described in various chapters. These products are deemed to be of potential research and clinical use if implemented in clinical and hospital settings, to help thus could the patients as well as healthy populations to improve the standard of their lives. Advances in extremities and musculoskeletal imaging in patients undergoing transplants, including first-ever(never been implemented)technologies such as Ultra high field upper extremity RF coils, research publications, and intellectual properties have been explored in detail. Another major advancement discussed in this book is the Whole-body MRI RF high density transmit coil and receiver array designs(first evevr application of antenna design), published in national and international journals as intellectual properties. Various other aspects of these 4intellectual properties have been discussed such as instrumentation developed, design procedures, Electromagnetic Simulations (simulated versions), Novel whole head(Brain) MRI RF array, Innovative Visualization Techniques, Neuro and vascular flow imaging, Segmentation methods. Regenerative Imaging, Pre and post-operative (surgical) imaging, clinical implementations, pulse sequence developments and optimizations, imaging resultswith 3D volume Texture and Visualizations, also peer research and references from around the world, plus future works, and more have been entailed. This is a rather different book in terms of depth and detail in which the subject is dealt with in this book. The data is well represented with tables, equations, and nearly three hundred figures. Combining technologies, research, and clinical applications of innovations in the field of MRI, it is one of a kind and a treat for curious minds. The content is mainly focused on whole head imaging, whole-body imaging, and extremity imaging, describing their clinical applications and their implementation for high risk and high demand patient populations, healthy populations for enhanced human anatomical, biological, functional and physiological performances in a detailed manner. The research has been utilized by peers in their studies, research, publications, and learning as part of the research and clinical developments, and implementations. This book presents the author’s original research works and their applications in the real world to offer advanced innovations to the healthcare sector and improve quality and standard of life for the masses around the world and beyond as future goals as there are many aviations,Biomedical Applications and projects are in demand. The author’s research works have been publishedand awarded in various nationalllyand internationallyrecognized journals and presented in numerous conferences as well. The chapters of this book are each one of the many research publications by the author
Ultrahigh Field Magnetic Resonance Imaging
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Author : Judy Alper
language : en
Publisher:
Release Date : 2016
Ultrahigh Field Magnetic Resonance Imaging written by Judy Alper and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Magnetic resonance imaging (MRI) may be used to provide detailed images of the human body with excellent soft tissue contrast. Alongside its current widespread clinical applications for diagnosis and treatment, MRI allows researchers to measure structure and function of different tissue types in order to advance our understanding of human biology and enable new medical applications of MRI. In particular, diseases affecting nerves and vessels, such as trigeminal neuralgia, with uncertain etiology can be studied using multiple MRI modalities so that treatment planning can we more effective and patient outcomes can be improved. Ultrahigh field MRI scanners, such as those operating at 7-‐tesla (7T), provide increased signal-‐to-‐noise ratio, which can be translated to higher spatial resolution. Additional advantages of high magnetic field MRI include enhanced vascular contrast as well as improved spectral separation and quantification for MR spectroscopy. These benefits over MRI at lower field strengths make ultrahigh field MRI a powerful new tool for performing quantitative image analysis with increased accuracy. One quantitative application of MRI is the detection and visualization of cells labeled with magnetic nanoparticles. This unconventional use of the imaging modality enables very effective imaging of cells or lesions tagged with these particles. The projects explored herein consist of such quantitative image analysis using advanced imaging techniques, including ultrahigh field MRI.
Ultra High Field Neuro Mri
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Author : Karin Markenroth Bloch
language : en
Publisher: Elsevier
Release Date : 2023-08-21
Ultra High Field Neuro Mri written by Karin Markenroth Bloch and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-08-21 with Computers categories.
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
Ultra High Field Magnetic Resonance Imaging 2006
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Author :
language : en
Publisher:
Release Date :
Ultra High Field Magnetic Resonance Imaging 2006 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Ultra High Field Magnetic Resonance Imaging
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Author : Pierre-Marie Robitaille
language : en
Publisher: Springer
Release Date : 2006-10-12
Ultra High Field Magnetic Resonance Imaging written by Pierre-Marie Robitaille and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-10-12 with Medical categories.
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.
Higher Better Faster
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Author :
language : en
Publisher:
Release Date : 2020
Higher Better Faster written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Susceptibility Effects In Ultra High Field Magnetic Resonance Imaging Of The Human Brain
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Author : Trong-Kha Truong
language : en
Publisher:
Release Date : 2004
Susceptibility Effects In Ultra High Field Magnetic Resonance Imaging Of The Human Brain written by Trong-Kha Truong and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Brain categories.
Abstract: In magnetic resonance imaging (MRI), susceptibility differences between deoxygenated blood or iron and surrounding tissue induce mesoscopic static magnetic field (B0) inhomogeneities that provide a valuable contrast mechanism for imaging of the vasculature, functional MRI, and assessment of iron content. On the other hand, susceptibility differences at air/tissue interfaces induce macroscopic B0 inhomogeneities resulting in image artifacts. Ultra-high field (greater than or equal to 7 tesla) MRI benefits from an enhanced susceptibility contrast, but also suffers from more severe susceptibility artifacts. The development of methods to reduce such artifacts while maintaining susceptibility contrast is the objective of this research. Development of susceptibility artifact correction methods requires knowledge of the macroscopic susceptibility effects, which can be quantified by mapping B0, whereas optimization of methods sensitive to susceptibility contrast requires understanding of the mesoscopic susceptibility effects, which can be characterized by relaxation time measurements. We first developed various methods for B0 numerical simulations and experimental mapping. Our simulations showed that air/tissue interfaces at the shoulders induce substantial B0 inhomogeneities in the brain, and that tilting the head backwards can significantly reduce some of these inhomogeneities. We used the B0 simulations and experimental mapping as well as radiofrequency magnetic field (B1) mapping to correlate the B0 and B1 inhomogeneity with the artifacts observed on images of the human brain acquired at 8 T. We then evaluated different susceptibility artifact correction methods at ultra-high field strength using B0 maps, including passive shimming, post-processing, and gradient compensation, and found the latter to be the most effective. Finally, we developed various methods for T2 and T2* relaxation time measurements at ultra-high field strength that are faster and less sensitive to B0 and/or B1 inhomogeneity than existing methods, and demonstrated these advantages in phantom and human studies. New findings obtained in this work will be used to improve ultra-high field MRI of the human brain, particularly for imaging of the venous microvasculature and assessment of iron content.
Magnetic Resonance Imaging And Spectroscopy At Ultra High Fields
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Author : Thomas Neuberger
language : en
Publisher:
Release Date : 2008
Magnetic Resonance Imaging And Spectroscopy At Ultra High Fields written by Thomas Neuberger and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
Finite Difference Time Domain Simulations Of Ultra High Field Magnetic Resonance Imaging In Medicine
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Author : Tamer S. Ibrahim
language : en
Publisher:
Release Date : 1998
Finite Difference Time Domain Simulations Of Ultra High Field Magnetic Resonance Imaging In Medicine written by Tamer S. Ibrahim and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.