The Cerebral Blood Flow Project
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The Cerebral Blood Flow Project
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Author : Robin Nijs
language : nl
Publisher:
Release Date : 2002
The Cerebral Blood Flow Project written by Robin Nijs and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
The Cerebral Circulation
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Author : Marilyn J. Cipolla
language : en
Publisher: Biota Publishing
Release Date : 2016-07-28
The Cerebral Circulation written by Marilyn J. Cipolla and has been published by Biota Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-07-28 with Medical categories.
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.
Cerebral Blood Flow Clinical And Experimental Results
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Author : mainz International symposium on the clinical applications of isotope clearance measurement of cerebral blood flow
language : en
Publisher:
Release Date : 1969
Cerebral Blood Flow Clinical And Experimental Results written by mainz International symposium on the clinical applications of isotope clearance measurement of cerebral blood flow and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with categories.
Cerebral Blood Flow
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Author : Andrea Boicelli
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Cerebral Blood Flow written by Andrea Boicelli 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 2012-12-06 with Medical categories.
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.
The Cerebral Circulation
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Author : Marilyn Cipolla
language : en
Publisher: Biota Publishing
Release Date : 2009-11-01
The Cerebral Circulation written by Marilyn Cipolla and has been published by Biota Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-11-01 with Science categories.
This presentation 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 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. This chapter will review these special features of the cerebral circulation and how they contribute to the physiology of the brain. Table of Contents: Introduction / Anatomy and Ultrastructure / Perivascular Innervation / Regulation of Cerebrovascular Tone / Control of Cerebral Blood Flow / Barriers of the CNS / Summary / References
Cerebral Blood Flow And Metabolism
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Author : Lars Edvinsson
language : en
Publisher:
Release Date : 2002
Cerebral Blood Flow And Metabolism written by Lars Edvinsson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Science categories.
Written and edited by the world's foremost authorities, the Second Edition of this landmark work is a current, comprehensive reference on cerebral blood flow and metabolism. The book covers the entire field in a systematic and coherent way and synthesizes the diverse body of basic science and clinical literature. The reader will gain a complete understanding of the anatomical, physiological, and pharmacological bases of the cerebral circulation, its regulation in health and disease, and the pathophysiological disturbances occurring in cerebrovascular disorders. Coverage includes stimulating discussions of future directions for research and therapeutic intervention.
Cerebral Blood Flow
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Author : Mario Brock
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Cerebral Blood Flow written by Mario Brock 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 2012-12-06 with Medical categories.
This book is a survey of some aspects of current knowledge on regional Cerebral Blood Flow (rCBF), mainly as studied by the isotope clearance method. Although both theoretical and methodological problems are discussed, attention is mainly dedicated to data obtained from clinical studies. The papers which make up this book were presented at the International Symposium on the Clinical Applications of Isotope Clearance Measurement of Cerebral Blood Flow, held in Mainz, Western Germany, on April 10-12, 1969. The previous meetings on Cerebral Blood Flow, held in Lund in 1964* and in Lund and Copenhagen 1968**, had shown that the moment had come to concentrate on the possibilities of introducing rCBF measurements into clinical routine. This is why in the Mainz Symposium attention was initially focused on methodological aspects. This is also why theoretical problems of physiology of CBF were not emphasized. Finally, this explains why such topics as cerebrovascular disease, head trauma, coma, carotid surgery, brain tumors and intracranial pressure were given pride of place. However a survey of the clinical aspects of rCBF measurements would not be complete without an account of the application of such measurements to monitor cerebral circulatory changes during anesthesia and therapeutic procedures like, for instance, hyperventilation and hyperbaric treatment. Furthermore, it is now possible to obtain data from correlative rCBF studies per formed before, during and after surgical operations on the human brain.
Cerebral Blood Flow
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Author : James H. Wood
language : en
Publisher: McGraw-Hill Companies
Release Date : 1987
Cerebral Blood Flow written by James H. Wood and has been published by McGraw-Hill Companies this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Medical categories.
Cerebral Blood Flow Clinical And Experimental Results Ed
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Author : International Symposium on the Clinical Applications of Isotope Clearance Measurement of Cerebral Blood Flow, Mainz, 1969
language : en
Publisher:
Release Date :
Cerebral Blood Flow Clinical And Experimental Results Ed written by International Symposium on the Clinical Applications of Isotope Clearance Measurement of Cerebral Blood Flow, Mainz, 1969 and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Brain categories.
Cerebral Blood Flow And Metabolism
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Author : Stephen John Payne
language : en
Publisher: World Scientific Publishing Company
Release Date : 2017-05-12
Cerebral Blood Flow And Metabolism written by Stephen John Payne and has been published by World Scientific Publishing Company this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-05-12 with Brain categories.
Physiology of blood flow and metabolism -- Models of blood flow and metabolism -- Global control of blood flow -- Local control of perfusion -- Externally-based measurements -- Internally-based measurements -- Global changes in cerebral blood flow and metabolism -- Local changes in cerebral blood flow and metabolism -- Conclusions