Download or read book Evaluation of Cerebral Hemodynamics by Quantitative Perfusion MRI written by Matthias Johannes Paulus Osch and published by . This book was released on 2002 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Quantitative Measurements of Cerebral Hemodynamics Using Magnetic Resonance Imaging written by Amit Mehndiratta and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book MRI Methods for Cerebrovascular Hemodynamics Assessment written by Leonardo A. Rivera and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intracranial vascular hemodynamics and vascular architecture are modified in a wide array of diseases, including tumors, stroke, and varying forms of dementia. Non-invasive methods capable of quantitatively assessing cerebrovascular disease are highly desirable. Magnetic resonance imaging (MRI) enables non-invasive quantitative assessment of cerebral hemodynamics and structure. Within this framework, the work in this thesis describes and applies innovative approaches to characterize hemodynamics in the cerebral vasculature using quantitative MRI. Additionally, these methods are validated and exhibited in-vivo. To assess vascular hemodynamics in relatively large arteries and veins a 4D flow MRI approach was used. This method enables both volumetric angiographic and quantitative assessment of blood flow velocities in a single acquisition with full volumetric coverage and sub millimeter resolution. 4D flow MRI was applied to healthy and pathological populations of individuals including: healthy younger and older adults, Alzheimer's disease (AD), mild cognitively impaired (MCI) and dural arteriovenous fistula (DAVF) patients. Targeted blood flow derived measurements, such as blood flow rates, pulsatility and resistivity, area, flow directionality, and pressure gradients were quantified. To assess small vessels and brain parenchyma tissue hemodynamics T1 and T2* mapping techniques were explored using ferumoxytol enhanced MRI. In addition, time-resolved T2* ferumoxytol enhanced MRI was implemented. With these approaches small vessel pulsatility and cerebral blood volume (CBV) were successfully characterized in gray and white matter tissues in a cohort of healthy volunteers.
Download or read book Implementation and Assessment of Novel Functional Hemodynamic MRI Measurements in the Brain for Evaluation of Disease and Treatment written by Adam Martin Winchell and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The characterization and quantification of cerebral hemodynamics can provide critical biological information of current physiology. Divergent hemodynamic processes can provide integral knowledge into different pathophysiologies and aid in the diagnosis and evaluation of treatment. A variety of different magnetic resonance (MR) imaging techniques were implemented to quantify cerebral hemodynamics in a diverse set of neurological conditions. The first study investigated the association of blood flow and blood volume of a diffuse intrinsic pontine glioma tumor by arterial spin labeling (ASL) and dynamic susceptibility weighted contrast MR as a predictive marker of survival. Higher tumor blood flow and maintenance of higher blood flow was associated with longer progression free survival. In the following study, ASL was used to evaluate the association of resting state perfusion and neurocognitive impairment in long-term survivors of pediatric acute lymphoblastic leukemia and Hodgkin lymphoma. Systematic differences in resting state perfusion and neurocognitive performance was observed between the cancer survivor groups. In the last few studies, a variety of different MR techniques were implemented to investigate the hemodynamic properties of Sickle cell disease (SCD). Susceptibility weighed imaging (SWI) was used to investigate difference in the cerebral venous vascular system integrity between SCD patients and healthy controls. A segmentation procedure was introduced to quantify the normalized visible venous volume (NVVV). The study showed that SCD effects SWI venous conspicuity by having a lower NVVV with a global isointense venous contrast. A follow-up study improved the accuracy of the NVVV quantification by removing hypointese arterial vessel contamination. This new segmentation framework combined information from SWI and MR angiography. In the final study, intracranial blood velocity measurements made by MRI and transcranial Doppler ultrasound were compared in a cohort of SCD patients. Excessive intracranial blood velocity is a clinical indicator of elevated stroke risk in SCD patients. Blood velocities correlated well between the different modalities, however, MR systematically underestimated the blood velocity. The ability to noninvasively image, quantify, and monitor biological processed represents a powerful diagnostic toolkit for physiological evaluation. Characterizing cerebral hemodynamics only represents a small but vital tool for the future of medicine.
Download or read book Acute Ischemic Stroke written by R. Gilberto González and published by Springer Science & Business Media. This book was released on 2010-10-05 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated second edition of Acute Ischemic Stroke: Imaging and Intervention provides a comprehensive account of the state of the art in the diagnosis and treatment of acute ischemic stroke. The basic format of the first edition has been retained, with sections on fundamentals such as pathophysiology and causes, imaging techniques and interventions. However, each chapter has been revised to reflect the important recent progress in advanced neuroimaging and the use of interventional tools. In addition, a new chapter is included on the classification instruments for ischemic stroke and their use in predicting outcomes and therapeutic triage. All of the authors are internationally recognized experts and members of the interdisciplinary stroke team at the Massachusetts General Hospital and Harvard Medical School. The text is supported by numerous informative illustrations, and ease of reference is ensured through the inclusion of suitable tables. This book will serve as a unique source of up-to-date information for neurologists, emergency physicians, radiologists and other health care providers who care for the patient with acute ischemic stroke.
Download or read book Cerebrovascular Reactivity written by Jean Chen and published by Humana. This book was released on 2021-11-06 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Oxford Textbook of Neurocritical Care written by Martin Smith and published by Oxford University Press. This book was released on 2016 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Oxford Textbook of Neurocritical Care provides an authoritative and up-to-date summary of the scientific basis, clinical techniques and management guidelines in this exciting clinical discipline. Authored by an international team of expert practitioners this textbook reflects world-wide practice.
Download or read book Functional MRI written by Scott H. Faro and published by Springer Science & Business Media. This book was released on 2006-11-22 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functional magnetic resonance imaging (fMRI) measures quick, tiny metabolic changes that take place in the brain, providing the most sensitive method currently available for identifying, investigating, and monitoring brain tumors, stroke, and chronic disorders of the nervous system like multiple sclerosis, and brain abnormalities related to dementia or seizures. This overview explores experimental research design, outlines challenges and limitations of fMRI, provides a detailed neuroanatomic atlas, and describes clinical applications of fMRI in cognitive, sensory, motor, and pharmacological cases, translating research into clinical application.
Download or read book The Stroke Book written by Michel T. Torbey and published by Cambridge University Press. This book was released on 2013-07-18 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: An essential companion for busy professionals seeking to navigate stroke-related clinical situations successfully and make quick informed treatment decisions.
Download or read book Multislice CT written by M.F. Reiser and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The introduction of multidetector spiral CT into clinical practice is without any doubt one of the most important technical developments in the field of computed tomography in general, and spiral CT in particular, in recent years. Indeed, multislice CT technology, based on the spiral CT technique invented by W. Kalender almost 20 years ago, has opened immense and totally new perspectives for better utilisation of contrast medium during the examination, for optimal multiplanar reconstruction and for increased patient throughput. The potential applications, more specifically in the area of CT angiography of the brain and the heart and vessels, are most interesting and definitely contribute to better patient care as well as to more effi cient utilisation of equipment. These exciting new clinical applications explain the keen desire of radiologists and other clinicians to hear and learn more about the first results obtained with this new equipment in daily clinical practice. This book will satisfy their needs. Professor Maximilian F. Reiser was among the first to install multidetector CT in his department in Munich and to gain experience with this new radiological tool. He was also able to organise a very successful and well attended international meeting on this hot topic as early as z 2000 in Starnberg, Germany.
Download or read book Intravoxel Incoherent Motion IVIM MRI written by Denis Le Bihan and published by CRC Press. This book was released on 2018-11-05 with total page 651 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intravoxel incoherent motion (IVIM) refers to translational movements which within a given voxel and during the measurement time present a distribution of speeds in orientation and/or amplitude. The concept was introduced in 1986 together with the foundation of diffusion MRI because it had been realized that flow of blood in capillaries (perfusion) would mimic a diffusion process and impact diffusion MRI measurements. IVIM-based perfusion MRI, which does not require injection of any tracer or contrast agent, has been first investigated in the brain, but is now experiencing a remarkable revival for applications throughout the body, especially for oncologic applications, from diagnosis to treatment monitoring. This book addresses a number of highly topical aspects of the field from leading authorities, introducing the concepts behind IVIM MRI, outlining related methodological issues, and summarizing its current usage and potential for clinical applications. It also presents future research directions, both in terms of methodological development and clinical application fields, extending to new, non-perfusion applications of IVIM MRI, such as virtual MR elastography.
Download or read book Quantitative Perfusion MRI written by Hai-Ling Margaret Cheng and published by Elsevier. This book was released on 2023-08-22 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantitative Perfusion MRI: Techniques, Applications, and Practical Considerations, Volume 11 clearly and carefully explains the basic theory and MRI techniques for quantifying perfusion non-invasively in deep tissue, covering all aspects of perfusion imaging, from acquisition requirements to selection of contrast agents and appropriate pharmacokinetic models and for reliable quantification in different diseases and tissue types. Specifically, this book enables the reader to understand what microvascular functional parameters can be measured with perfusion MRI, learn the basic techniques to measure perfusion in different organs, apply the appropriate perfusion MRI technique to the organ of interest, and much more. This complete reference on quantitative perfusion MRI is highly suitable for both early and experienced researchers, graduate students and clinicians wishing to understand how quantitative perfusion MRI can apply to their application area of interest. - Provides a one-stop resource for students and early and experienced researchers on all aspects of quantitative perfusion MRI as written by experts in the field - Explains basic theory and MRI techniques - Presents a strong focus on the practical considerations that can make or break perfusion MRI - Includes applications in oncology, cardiology, neurology and body imaging
Download or read book Imaging of Ischemic Stroke An Issue of Neuroimaging Clinics E Book written by Pamela W. Schaefer and published by Elsevier Health Sciences. This book was released on 2011-07-22 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics include: Imaging of Ischemic Stroke; Hemorrhagic Stroke and Non-traumatic Intracranial Hemorrhage; Acute Neuro-Interventional Therapies; Orbital and Intracranial Complications of Sinusitis; Traumatic Brain Injury; Central Nervous System Infections; Facial Trauma: What the Surgeon Wants to Know; Intracranial Hypo- and Hypertension; Seizures; Pediatric Central Nervous System Emergencies; Spine Emergencies; Infections and Inflammatory Processes of the Neck.
Download or read book Comprehensive Overview of Modern Surgical Approaches to Intrinsic Brain Tumors written by Kaisorn Chaichana and published by Academic Press. This book was released on 2019-02-28 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Overview of Modern Surgical Approaches to Intrinsic Brain Tumors addresses limitations in the scientific literature by focusing primarily on surgical approaches to various intrinsic neoplasms using diagrams and step-by-step instructions. It provides the advantages and disadvantages of these approaches, controversies, and technical considerations and discusses topics such as anatomy, pathology and animal models, imaging, open brain tumor approaches and minimally invasive approaches. Additionally, it discusses controversial treatments and the pros and cons of each. This book is a valuable source for medical students, neurosurgeons and any healthcare provider who has an interest in brain tumors and techniques to treat them. - Provides a comprehensive review of different approaches, explaining them step-by- step - Includes diagrams that show surgical approaches - Presents the advantages and disadvantages of each approach to aid in decision-making
Download or read book Functional Neuroradiology written by Scott H. Faro and published by Springer Science & Business Media. This book was released on 2011-09-08 with total page 1015 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functional Neuroradiology: Principles and Clinical Applications, is a follow-up to Faro and Mohamed’s groundbreaking work, Functional (BOLD)MRI: Basic Principles and Clinical Applications. This new 49 chapter textbook is comprehensive and offers a complete introduction to the state-of-the-art functional imaging in Neuroradiology, including the physical principles and clinical applications of Diffusion, Perfusion, Permeability, MR spectroscopy, Positron Emission Tomography, BOLD fMRI and Diffusion Tensor Imaging. With chapters written by internationally distinguished neuroradiologists, neurologists, psychiatrists, cognitive neuroscientists, and physicists, Functional Neuroradiology is divided into 9 major sections, including: Physical principles of all key functional techniques, Lesion characterization using Diffusion, Perfusion, Permeability, MR spectroscopy, and Positron Emission Tomography, an overview of BOLD fMRI physical principles and key concepts, including scanning methodologies, experimental research design, data analysis, and functional connectivity, Eloquent Cortex and White matter localization using BOLD fMRI and Diffusion Tensor Imaging, Clinical applications of BOLD fMRI in Neurosurgery, Neurology, Psychiatry, Neuropsychology, and Neuropharmacology, Multi-modality functional Neuroradiology, Beyond Proton Imaging, Functional spine and CSF imaging, a full-color Neuroanatomical Brain atlas of eloquent cortex and key white matter tracts and BOLD fMRI paradigms. By offering readers a complete overview of functional imaging modalities and techniques currently used in patient diagnosis and management, as well as emerging technology, Functional Neuroradiology is a vital information source for physicians and cognitive neuroscientists involved in daily practice and research.
Download or read book Youmans and Winn Neurological Surgery E Book written by H. Richard Winn and published by Elsevier Health Sciences. This book was released on 2022-01-21 with total page 7439 pages. Available in PDF, EPUB and Kindle. Book excerpt: Widely regarded as the definitive reference in the field, Youmans and Winn Neurological Surgery offers unparalleled, multimedia coverage of the entirety of this complex specialty. Fully updated to reflect recent advances in the basic and clinical neurosciences, the 8th Edition covers everything you need to know about functional and restorative neurosurgery, deep brain stimulation, stem cell biology, radiological and nuclear imaging, and neuro-oncology, as well as minimally invasive surgeries in spine and peripheral nerve surgery, and endoscopic and other approaches for cranial procedures and cerebrovascular diseases. In four comprehensive volumes, Dr. H. Richard Winn and his expert team of editors and authors provide updated content, a significantly expanded video library, and hundreds of new video lectures that help you master new procedures, new technologies, and essential anatomic knowledge in neurosurgery. - Discusses current topics such as diffusion tensor imaging, brain and spine robotic surgery, augmented reality as an aid in neurosurgery, AI and big data in neurosurgery, and neuroimaging in stereotactic functional neurosurgery. - 55 new chapters provide cutting-edge information on Surgical Anatomy of the Spine, Precision Medicine in Neurosurgery, The Geriatric Patient, Neuroanesthesia During Pregnancy, Laser Interstitial Thermal Therapy for Epilepsy, Fetal Surgery for Myelomeningocele, Rehabilitation of Acute Spinal Cord Injury, Surgical Considerations for Patients with Polytrauma, Endovascular Approaches to Intracranial Aneurysms, and much more. - Hundreds of all-new video lectures clarify key concepts in techniques, cases, and surgical management and evaluation. Notable lecture videos include multiple videos on Thalamotomy for Focal Hand Dystonia and a video to accompany a new chapter on the Basic Science of Brain Metastases. - An extensive video library contains stunning anatomy videos and videos demonstrating intraoperative procedures with more than 800 videos in all. - Each clinical section contains chapters on technology specific to a clinical area. - Each section contains a chapter providing an overview from experienced Section Editors, including a report on ongoing controversies within that subspecialty. - Enhanced eBook version included with purchase. Your enhanced eBook allows you to access all of the text, figures, and references from the book on a variety of devices.
