Download or read book Neurosurgical Applications of Transcranial Doppler Sonography written by A. Harders and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1981, the Norwegian physiologist and cyberneticist, Rune Aaslid, developed a device which made it possible to apply the transcranial Doppler sonographic technique in man. In 1983, Dr. Albrecht Harders took on the project of working out a clinically practicable method that would allow atraumatic measurements to be made of the blood flow velocity in the large branches ofthe circle of Willis. The technique has now become a competitor of the conventional methods of measuring the intracranial hemodynamics, including angiography and the xenon method of cerebral blood flow measurement. Harders proceeded from the assumption that the measurement of the blood flow velocity is more relevant for clinical diagnoses than the usual volume flow measurements. He stresses the very valuable application of the technique in detecting cerebral vasospasm before and after aneurysm surgery. The changes in the blood flow velocities measured by transcranial Doppler sonography in the individual vessel segments of the circle of Willis are interpreted with respect to the various factors that can effect such changes (collateral circulation in the circle of Willis, diameter of the vessel, vascular resistance, the general cardiovascular situation, arterial partial CO pressure, autoregulatory factors, position of body). The rate of 2 complications associated with angiography has thus been reduced, since the best time both for angiography and for surgery can be determined, and continuous TCD examinations show when the patient is out of a critical phase of cerebral vasospasm.
Download or read book Neurosurgical Applications of Transcranial Doppler Sonography written by Albrecht Harders and published by Springer Verlag. This book was released on 1986 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transcranial Doppler Ultrasonography written by Viken L. Babikian and published by Butterworth-Heinemann. This book was released on 1999 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Second Edition of this highly regarded text provides a current reference source on the clinical and research applications of Transcranial Doppler (TCD) ultrasonography. All of the chapters have been updated to reflect the rapid evolution that has taken place in the field. New information has been included on the increased use of TCD in the operating room, the introduction of contrast media, and the development of new softwares that permit the detection of microemboli.
Download or read book Transcranial Doppler Sonography written by Rune Aaslid and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every few years a dissertation comes to the area of clinical application of medical technology which carries us forward as on a magic carpet into new regions of understanding and patient care. This book is such a magic carpet. It brings together, in a clear and incisive fashion, important hemodynamic principles with a simple noninvasive method of application to a part of the cerebral vasculature which has been relatively inaccessible. To the lucky and perceptive person who reads this book, a feeling of excitement and hope for progress is engendered. The diligent application of the potentials of transcranial Doppler ultrasound brings new power to our efforts in understanding the cerebral circulation and the causes, treatment and prevention of cerebrovascular disorders. Merrill P. Spencer, M. D. Director Institute of Applied Physiology and Medicine Seattle, Wash. , July 1986 Acknowledgements I am greatly indebted to Prof. He1ge Nornes, Oslo, who introduced me to the fascinating study of cerebral hemodynamics in the early 1970's and since then continually encouraged my interest in this field. It was through his pioneering work on the cerebral circulation-using peroperative electromagnetic flowmetry and Doppler techniques-that the basis was laid for the noninvasive trans cranial approach to the circle of Willis described in this book. I also gratefully acknowledge the stimulating case discussions with Prof. Peter Huber, Berne, at the very early introduction of trans cranial Doppler, the inspiring exchange of ideas with Dr. Merrill P.
Download or read book Pediatric Applications of Transcranial Doppler Sonography written by Harald Bode and published by . This book was released on 2014-09-01 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Transcranial Doppler written by John P. McCartney and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transcranial Doppler (TCD) ultrasound, first introduced more than a decade ago, has steadily evolved into a dynamic, reliable, reproducible, and practical diagnostic tool. Clinical neuroscientists have found TCD to be an indispensable technique in the management of many types of patients. This book is designed to provide basic instruction in the perfor mance and interpretation of transcranial Doppler ultrasonography for technologists, nurses, and physicians. The information included in the text is critical for the development of a strong knowledge base. It is not intended to be all inclusive, and the TCD novice is likely to use it as the platform upon which to build his/her experience in the application of TCD. This book is organized as a step-guided approach for the performance of TCD, and it includes specific guidelines for interpretation of the TCD save forms. We hope that the reader finds it useful during what we think is the most difficult phase of this technique-the learning curve. John P. McCartney, R.V.T. Kathleen M. Thomas-Lukes, R.N., M.N.
Download or read book Intraoperative Ultrasound IOUS in Neurosurgery written by Francesco Prada and published by Springer. This book was released on 2016-03-08 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended as a practical manual on the use of intraoperative ultrasound (IOUS) as a tool for imaging guidance during cranial and spinal neurosurgical procedures. Full account is taken of the emergence of novel clinical applications and recent technical advances, with extensive coverage of the impact of developments such as improved probe technology, fusion imaging and virtual navigation, 3D ultrasound imaging, contrast-enhanced ultrasound, and elastosonography. Basic principles of ultrasound are elucidated in order to assist in the optimal use of IOUS and clear guidance is provided on the interpretation of imaging findings in various pathologies. Informative comparisons are also made of the use of techniques such as fusion imaging and contrast-enhanced ultrasound in general radiology and neurosurgery. The aim of the authors is to enhance the general knowledge regarding intra-operative ultrasound brain imaging, standardizing its use and exploring new techniques, leading in some way toward compensating the lack of specific training in the application of ultrasound among the neurosurgical community. IOUS is a sensitive tool that can improve surgical precision and help to reduce morbidity.
Download or read book Handbook on Neurovascular Ultrasound written by Ralf W. Baumgartner and published by Karger Medical and Scientific Publishers. This book was released on 2006-01-01 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neurovascular ultrasound increases the reliability of assessing occlusive cerebrovascular disease, including the detection of instable carotid plaques, the delineation of cerebral perfusion and therapeutic options such as ultrasound-enhanced sonothrombolysis. Written by international experts, this publication provides the reader with the present knowledge and future research directions of diagnostic and therapeutic neurovascular ultrasound. The first chapters deal with physical and technical principles of ultrasound, arterial wall imaging, endothelial function testing and modern assessment of atherosclerotic obstruction of the carotid and vertebro-basilar systems. Subsequently, typical ultrasound findings in cervical artery dissection, dural fistula, glomus tumor and vasculitis are reported. The book concludes with the description of diagnostic and therapeutic transcranial ultrasound and clinical applications of transcranial Doppler monitoring as well as the presentation of future developments. Neurologists, angiologists and radiologists will find a valuable source of up-to-date information on this fascinating, essentially non-invasive technique, which allows real-time assessment of the human cerebral vessels.
Download or read book Neurovascular Imaging written by Luca Saba and published by Springer. This book was released on 2016-01-25 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vascular Neurology, Vascular Neurosurgery and Interventional Neuroradiology are independent fields with dedicated Training Programs. Neuroimaging, and in particular what we call "Neurovascular Imaging" is a unifying factor which can be considered the intersection of these three medical specialties. With this book we aim to cover thoroughly the imaging techniques, potentialities, and present and future applications as applied to all the vascular diseases of the central nervous system from the imaging point of view. This book will comprise eight main sections: (1) The Basics, (2) Arteries of the Head and Neck (3) The basics of Intracranial Arteries (4) Diseases of the vessels (5) Stroke Imaging (6) Veins Imaging (7) Spine Imaging (8) Pediatrics.
Download or read book Neurosonology in Critical Care written by Camilo N. Rodríguez and published by Springer Nature. This book was released on 2021-11-19 with total page 1143 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook addresses the classical use of Transcranial Doppler (TCD) and Transcranial Color-Coded Duplex Sonography (TCCS), focusing on the usefulness of neurological monitoring beyond classical acute brain injuries present in the daily intensive care medical practice. It encompasses a wide range of critical pathologies where neurological impact is part of clinical evolution, offering practical approaches for managing, application and interpretation of neurosonology to assist the physician to making real-time individualized decisions at bedside. It is an academic guide developed and edited by international experts being a very useful resource in daily practice for intensivists, neurologists, neurosurgeons and other specialists involving in critical care.
Download or read book Intraoperative Doppler Sonography in Neurosurgery written by J.M. Gilsbach and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is written by an author whose knowledge of the subject is based on vast surgical experience. A reliable assessment of the success or failure of a micro vascular anastomosis or an aneurysm operation has until now been possible only postoperatively by angiography and transcutaneous Doppler sonography. Of particular impor tance are the stenoses and occlusions which can occur dur ing the operation, but which are frequently not detected un til after surgery. This induced the neurosurgeons in Freiburg, as well as those in several other hospitals, to carry out a rou tine control with postoperative transcutaneous Doppler fol lowing extracranial-intracranial bypass operations and an giography while still under anesthesia following aneurysm operations. The stenoses and occlusions detected were often not apparent intraoperatively. The reasons for this are that from the outside we see only the surface - and not the lu men - of a v~ssel, and that stenoses caused by thrombosis, indentation of the vessel wall during anastomosis or by plaque on the vessel wall are not externally obvious. Even arterial pulsation is no guarantee of patency. The necessity to be able to detect stenoses during the op eration is obvious. The microvascular Doppler sonography adopted by Dr. Gilsbach provides an expedient and safe method of recognizing such lumen narrowings.
Download or read book Transcranial Doppler written by Rune Aaslid and published by Lippincott Raven. This book was released on 1992 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important reference provides complete and current information on the applications of transcranial Doppler ultrasound in the evaluation of cerebrovascular diseases. The book gives practical instructions for performing examinations, explains how to interpret results, provides essential data on normal values, and describes the use of the technique in specific clinical situations such as stroke, head injury, subarachnoid hemorrhage and vasospasm, arteriovenous malformations, and monitoring during carotid surgery. Coverage includes thorough discussions on recent clinical studies, new refinements in transcranial Doppler sonography, and new applications such as monitoring of critically ill patients and detection of cerebral emboli in patients with suspected transient ischemic symptoms. The book also offers comprehensive guidelines on the pediatric applications of transcranial Doppler. More than 200 illustrations, including 20 in full color, complement the text.
Download or read book Cerebrovascular Ultrasound written by Michael G. Hennerici and published by Cambridge University Press. This book was released on 2001-10-25 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive text covers the fundamentals and clinical applications of cerebrovascular ultrasound in all ages.
Download or read book The Role of Transcranial Doppler Sonography in the Management of Pediatric Hydrocephalus written by Branislav Kolarovszki and published by BoD – Books on Demand. This book was released on 2019-11-06 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Negative influence of cerebral circulation with the emergence of cerebral hypoperfusion plays a significant role in the pathophysiology of pediatric hydrocephalus. Transcranial Doppler sonography is a non-invasive method for indirectly measuring intracranial pressure and decreasing intracranial compliance by assessing changes of cerebral circulation. This book discusses the cerebral circulation and intracranial dynamics in pediatric hydrocephalus. It also focuses on evaluating the impact of various intracranial factors on Doppler parameters of cerebral circulation, especially in neonates with hydrocephalus. The ambition of this work is to improve indication and timing of drainage procedure in children with hydrocephalus by applying scientific results and clinical experience.
Download or read book Manual of Neurosonology written by László Csiba and published by Cambridge University Press. This book was released on 2016-04-28 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neurosonology is non-invasive, portable, and has excellent temporal resolution, making it a valuable and increasingly popular tool for the diagnosis and monitoring of neurological conditions when compared to other imaging techniques. This guide looks beyond the use of neurovascular ultrasound in stroke to encompass a wide range of other neurological diseases and emergencies. It offers a practical approach to the examination of patients, interpretation of ultrasound studies, and the application of neurosonology to the development of management and treatment strategies. Each chapter incorporates a thorough and clear procedural methodology alongside scanning tips for trainees; this step-by-step approach is further enhanced by example images and focused diagnostic questions. Authored and edited by international experts, this practical manual of neurosonology is an invaluable resource for neurologists, neurosurgeons, intensivists, radiologists, and ultrasonographers.
Download or read book Neuromonitoring Techniques written by Hemanshu Prabhakar and published by Academic Press. This book was released on 2017-11-13 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neuromonitoring Techniques: Quick Guide for Clinicians and Residents provides a quick and easy guide to understanding various neuromonitoring equipment. Chapters include intracranial pressure monitoring, EEG-based monitors, evoked potentials and transcranial doppler. This book is written for trainees, clinicians and researchers in the fields of neurosurgery, neurocritical care, neuroradiology, neuroanesthesia and neurology. As specialized neuromonitoring is now routinely done in neurosurgical cases, it provides an important resource for neurologists, neurophysiologists, anesthesiologists and residents who are expected to have theoretical and practical knowledge on different systems. Each monitoring system is discussed separately, with examples, images, reference values and their interpretations. Provides a quick and easy guide to understanding various neuromonitoring techniques Presents information on each monitoring system, with examples, images, reference values and their interpretation Useful for trainees, clinicians and researchers in the fields of neurosurgery, neurocritical care, neuroradiology, neuroanasthesia and neurology
Download or read book Emergency Point of Care Ultrasound written by James A. Connolly and published by John Wiley & Sons. This book was released on 2017-10-23 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Featuring contributions from internationally recognized experts in point-of-care sonography, Emergency Point-of-Care Ultrasound, Second Edition combines a wealth of images with clear, succinct text to help beginners, as well as experienced sonographers, develop and refine their sonography skills. The book contains chapters devoted to scanning the chest, abdomen, head and neck, and extremities, as well as paediatric evaluations, ultrasound-guided vascular access, and more. An entire section is devoted to the syndromic approach for an array of symptoms and patient populations, including chest and abdominal pain, respiratory distress, HIV and TB coinfected patients, and pregnant patients. Also included is expert guidance on administering ultrasound in a variety of challenging environments, such as communities and regions with underdeveloped healthcare systems, hostile environments, and cyberspace. Each chapter begins with an introduction to the focused scan under discussion and a detailed description of methods for obtaining useful images. This is followed by examples of normal and abnormal scans, along with discussions of potential pitfalls of the technique, valuable insights from experienced users, and summaries of the most up-to-date evidence. Emergency Point-of-Care Ultrasound, Second Edition is a valuable working resource for emergency medicine residents and trainees, practitioners who are just bringing ultrasound scanning into their practices, and clinicians with many years of sonographic experience.
