Download or read book Progress in Brain Research written by J. P. Schadé and published by . This book was released on 1963 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of 19F Magnetic Resonance Imaging to Measure Cerebral Blood Volume written by Dongfeng Lu and published by . This book was released on 1991 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulation and Synthesis in Medical Imaging written by David Svoboda and published by Springer Nature. This book was released on 2021-09-21 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 6th International Workshop on Simulation and Synthesis in Medical Imaging, SASHIMI 2021, held in conjunction with MICCAI 2021, in Strasbourg, France, in September 2021.* The 14 full papers presented were carefully reviewed and selected from 18 submissions. The contributions span the following broad categories in alignment with the initial call-for-papers: methods based on generative models or adversarial learning for MRI/CT/ microscopy image synthesis, and several applications of image synthesis and simulation for data augmentation, image enhancement, or segmentation. *The workshop was held virtually.
Download or read book Functional Magnetic Resonance Imaging of Cerebral Blood Volume written by Bojana Stefanovic and published by . This book was released on 2004 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This dissertation describes a novel method for quantifying venous cerebral blood volume (CBVv) changes accompanying normal functional activation and employs quantitative functional magnetic resonance imaging (fMRI) methods to study the hemodynamic and metabolic changes accompanying neuronal inhibition. An in vivo occipital lobe relaxometry study was performed first to investigate the dependence of the spin-spin relaxation time constant of tissue, T2tissue , on the refocusing interval over the range of interest and thus test the basis of the proposed CBVv method. The small decrease of the apparent T2tissue with refocusing interval elongation is consistent with blood being the only significant source of refocusing interval dependence of apparent T2 in grey and white matter of the occipital lobe. In ensuing in vitro blood relaxometry studies, ensemble fitting of the entire set of T2blood estimates, obtained over an extensive range of blood oxygenation levels and refocusing intervals, was performed using both the fast chemical exchange model and the model of diffusion in weak magnetic field inhomogeneities. The results support the application of a diffusion model in describing the deoxyhemoglobin-induced enhancement in blood transverse relaxation rate at 1.5 T. Given the uniqueness of T2blood dependence on the refocusing rates over the range of interest, the novel CBVv method - venous refocusing for volume estimation (VERVE) - successfully isolates the blood signal by refocusing rate variation. A model of functional brain activation was developed and in vitro blood relaxometry data used to assess the effect of the intravascular spin-echo blood oxygenation level dependent (BOLD) contrast on the activation-induced VERVE signal change, allowing robust estimation of venous CBV changes. The method was demonstrated in a visual stimulation study of healthy young adults, where an average venous blood volume in the visual cortex increase was estimated" --
Download or read book Magnetic Resonance Imaging of the Cerebral Blood Volume written by Teodora-Adriana Perles-Barbacaru and published by LAP Lambert Academic Publishing. This book was released on 2012-06 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cerebral blood volume fraction (CBVf) mapping by magnetic resonance imaging (MRI) can provide information about tumor angiogenesis. The Rapid Steady State T1 (RSST1) MRI method, based on a two-compartment model, intra- and extravascular, and on the longitudinal relaxivity of intravascular contrast agents (CAs), is developed and validated on healthy rats at 2.35 T (CBVf: 2 to 3%) using Gd-DOTA, approved for clinical use, and the experimental CA P760. Gd-ACX and SINEREM are evaluated for their blood pool properties in two rat glioma models C6 and RG2. The CBVf measures in tumor tissue are confirmed by histologic vascular morphometric analysis and were compared with those obtained by a DeltaR2*-based steady state method using the same SINEREM injection. In case of CA extravasation, such as occurs in tumor tissue with Gd-DOTA, the CBVf along with the transfer coefficient (related to the endothelial permeability) were obtained by pharmacokinetic two-compartment analysis of dynamic RSST1 acquisitions. In conclusion, the RSST1 method in conjunction with appropriate CAs can be used for longitudinal angiogenesis studies to quantify the CBVf and the vascular permeability."
Download or read book Magnetic Resonance Neuroimaging written by John Kucharczyk and published by CRC Press. This book was released on 1993-12-21 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic Resonance Neuroimaging is a comprehensive volume that focuses on the newest fields of MRI from functional and metabolic mapping to the latest applications of neuro-interventional techniques. Each chapter offers critical discussions regarding available methods and the most recent advances in neuroimaging, including such topics as the use of diffusion and perfusion MRI in the early detection of stroke, the revolutionary advent of high-speed MRI for non-invasively mapping cortical responses to task activation paradigms, and the principles and applications of contrast agents. The chapters also discuss how these new advances are applied to problems in patients ranging in age from the newborn to the elderly, as well as disease states ranging from metabolic encephalopathy to cardiovascular disorders and stroke. Magnetic Resonance Neuroimaging will be a valuable text/reference for residents, research fellows, and clinicians in radiology, neuroradiology, and magnetic resonance imaging.
Download or read book Measurements of Cerebral Blood Volume Using Magnetic Resonance Imaging and written by Luminita Alina Tudorica and published by . This book was released on 2001 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Validation of Cerebral Blood Volume Measurements Using Magnetic Resonance Imaging written by Azim Celik and published by . This book was released on 2000 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measuring Resting Cerebral Perfusion using Magnetic Resonance Imaging MRI written by James Duffin and published by Frontiers Media SA. This book was released on 2024-07-12 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Cerebral MR Perfusion Imaging written by A. Gregory Sorensen and published by Thieme. This book was released on 2000 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will familiarize the reader with the basic principles of perfusion MR imaging. Relevant technical aspects, contrast agents, and the postprocessing of images are presented, and imaging protocols are provided. Dedicated software for personal use on the postprocessing of images is provided on a CD-ROM containing hundreds of images and movie clips that demonstrate all concepts. In addition to the technical details of acquisition and postprocessing, numerous examples of the application of these tools in the clinical setting are also shown. In particular, the book includes a discussion of the role of perfusion MRI in the current evaluation of cerebrovascular disease, including an integrative approach using diffusion in conjunction with perfusion imaging. This text covers: all relevant technical aspects of perfusion MR imaging imaging protocols application of these tools in a clinical setting integration of diffusion imaging with perfusion imaging for enhanced diagnostic capabilities Also addressed are the role of perfusion MRI in the assessment of cerebral neoplasia, challenges and opportunities for treatment that tumors present, and the particular strengths of perfusion MRI, such as its relatively high resolution and possible microvascular specificity. For both newcomers and experienced practitioners, this is a nuts-and-bolts description of an important new technique.
Download or read book Introduction to Functional Magnetic Resonance Imaging written by Richard B. Buxton and published by Cambridge University Press. This book was released on 2002-01-07 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functional Magnetic Resonance Imaging (fMRI) is now a standard tool for mapping activation patterns in the human brain. This highly interdisciplinary field involves neuroscientists and physicists as well as clinicians who need to understand the rapidly increasing range, flexibility and sophistication of the techniques. In this book, Richard Buxton, a leading authority on fMRI, provides an invaluable introduction for this readership to how fMRI works, from basic principles and the underlying physics and physiology, to newer techniques such as arterial spin labeling and diffusion tensor imaging.
Download or read book Handbook of Neuro Oncology Neuroimaging written by Herbert B. Newton and published by Academic Press. This book was released on 2022-08-21 with total page 1022 pages. Available in PDF, EPUB and Kindle. Book excerpt: With treatment approaches and the field of neuro-oncology neuroimaging changing rapidly, this third edition of the Handbook of Neuro-Oncology Neuroimaging is very relevant to those in the field, providing a single-source, comprehensive, reference handbook of the most up-to-date clinical and technical information regarding the application of neuroimaging techniques to brain tumor and neuro-oncology patients. This new volume will have updates on all of the material from the second edition, and in addition features several new important chapters covering diverse topics such as imaging for the use of Laser Interstitial Thermal Therapy, advanced imaging techniques in radiation therapy, therapeutic treatment fields, response assessment in clinical trials, surgical planning of neoplastic disease of the spine, and more. Sections first overview neuro-oncological disorders before delving into the physics and basic science of neuroimaging and great focus on CT and MRI. The book then focuses on advances in the neuroimaging of brain tumors and neuroimaging of specific tumor types. There is also discussion of neuroimaging of other neuro-oncological syndromes. This book will serve as a resource of background information to neuroimaging researchers and basic scientists with an interest in brain tumors and neuro-oncology. - Summarizes translational research on brain imaging for brain tumors - Discusses limitations of neuroimaging for diagnosis and treatment - Presents advanced imaging technologies, including CT, MRI, and PET - Contains new coverage on Laser Interstitial Thermal Therapy, radiation therapy, clinical trials, and more
Download or read book MR and CT Perfusion and Pharmacokinetic Imaging Clinical Applications and Theoretical Principles written by Roland Bammer and published by Lippincott Williams & Wilkins. This book was released on 2016-03-03 with total page 2558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Essential reading for both clinicians and researchers, this comprehensive resource covers what you need to know about the basic principles of perfusion, as well as its many clinical applications. Broad coverage outlines the overarching framework that interlinks methods such as DSC, DCE, CTP, and ASL. International experts in the field demonstrate how perfusion and pharmacokinetic imaging can be effectively used to analyze medical conditions, helping you reach accurate diagnoses and monitor disease progression and response to therapy.
Download or read book Introduction to Functional Magnetic Resonance Imaging written by Richard B. Buxton and published by Cambridge University Press. This book was released on 2009-08-27 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functional Magnetic Resonance Imaging (fMRI) has become a standard tool for mapping the working brain's activation patterns, both in health and in disease. It is an interdisciplinary field and crosses the borders of neuroscience, psychology, psychiatry, radiology, mathematics, physics and engineering. Developments in techniques, procedures and our understanding of this field are expanding rapidly. In this second edition of Introduction to Functional Magnetic Resonance Imaging, Richard Buxton – a leading authority on fMRI – provides an invaluable guide to how fMRI works, from introducing the basic ideas and principles to the underlying physics and physiology. He covers the relationship between fMRI and other imaging techniques and includes a guide to the statistical analysis of fMRI data. This book will be useful both to the experienced radiographer, and the clinician or researcher with no previous knowledge of the technology.
Download or read book Cerebral Blood Flow written by Andrea Boicelli and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NATO Advanced Study Institute on "Cerebral Blood Flow: Mathematical Models, Instrumentation, and Imaging Techniques" was held in L'Aquila, Italy, June 2-13, 1986. Contributions to this program were received from the University of L'Aquila, Consiglio Nazionale delle Ricerche, Siemens Elettra S.p.A., and Bracco S.p.A. Recent studies of the cerebral blood circulation have lagged behind analysis of other parameters such as glucose utilization, transmitter distribution, and precursors. This Advanced Study Institute tried to fill this gap by analyzing in detail different physical techniques such as Autoradiography (including Double-Tracer Auto radiography and highly specific tracers as Iodoantipyrine, Micro spheres), Single Photon Emission Computed Tomography, Nuclear Magnetic Resonance. Each method was analyzed in regards to its precision, resolution, response time. A considerable part of this Institute was devoted to the mathematics of CBF measurement, in its two aspects, i.e. the modeling of the underlying kinetic system and the statistical analysis of the data. The modeling methods proposed included the development of a differential algebra whereby the differential and integral equations involved could be solved by simple algebraic methods, including graph theoretical ones; the statistical methods proposed included the illustration of different parametrizations of possible use in the interpretation of experimental results.
Download or read book The Use of Magnetic Resonance Imaging Cerebral Blood Volume Mapping to Measure Tumor Microvasculature Change in Glioma Patients Following Radiotherapy written by Bridget Martha Hanser and published by . This book was released on 1995 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Adult Hydrocephalus written by Daniele Rigamonti and published by Cambridge University Press. This book was released on 2014-02-06 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides guidelines for managing this grossly underdiagnosed and undertreated condition, focusing on early detection and timely, effective interventions.
