Electrodiagnostic Testing of the Visual System


Book Description

A guide to eletroretinography (ERG), focusing on the use of different stimuli configurations to study specific portions of the retina and visual pathway. About a third of the book introduces the basic concepts and methods. The clinical section outlines the four standard abnormal ERG recordings and their implications, then surveys diseases in groups with functional similarities. Several appendices provide technical data and details of testing. Annotation copyrighted by Book News, Inc., Portland, OR







Principles and Practice of Clinical Electrophysiology of Vision, second edition


Book Description

The long-awaited second edition of an authoritative reference on electrophysiologic vision testing, including detailed information on techniques and problems, basic physiology and anatomy, theoretical concepts, and clinical findings; with extensive new material. This authoritative text is the only comprehensive reference available on electrophysiologic vision testing, offering both practical information on techniques and problems as well as basic physiology and anatomy, theoretical concepts, and clinical correlations. The second edition, of the widely used text, offers extensive new material and updated information: 65 of the 84 chapters are completely new, with the changes reflecting recent advances in the field. The book will continue to be an essential resource for practitioners and scholars from a range of disciplines within vision science. The contributions not only cover new information—important material that is likely to become more important in the next decade—but also offer a long-range perspective on the field and its remarkable development in the last century. After discussing the history and background of clinical electrophysiology, the book introduces the anatomy of the retina and principles of cell biology in the visual pathways at the molecular, physiological, and biochemical levels. It relates these new findings to the techniques and interpretations of clinical tests, including the electro-oculogram (EOG), electroretinogram (ERG), and visual evoked potentials (VEP), which are discussed in detail, as are equipment, data acquisition and analysis, principles and protocols for clinical testing, diseases and dysfunction, and animal testing. Notable additions for this edition include chapters on the origin of electroretinogram waveforms, multifocal techniques, testing in standard laboratory animals, recent advances in analysis of abnormalities in disease, and the applications of these techniques to the study of genetic abnormalities.




Electrodiagnosis in Clinical Neurology


Book Description

Widely acknowledged as the most comprehensive book on its subject, this book offers concise, practical guidance on the use of electrodiagnostic techniques for investigating problems of both the central and peripheral nervous systems. Forty-two experts, many new to this edition, discuss the principles, scope, limitations, diagnostic importance, prognostic relevance and complications for each technique.




Visual Electrodiagnosis ...


Book Description

Visual electrodiagnosis (VED) is used to study a variety of eye diseases. Five VED tests to be used for the diagnosis of retinal disease, optic nerve damage and visual field defects were the focus of this evaluation: focal electroretinography, multifocal electroretinography, multifocal visual evoked potential, scotopic threshold response and intensity response function. As VED is non-invasive, risks to patients are expected to be minunal. Two factors were considered in determining the effectiveness of the visual electrodiagnostic tests: accuracy and usefulness in improving outcomes for patients. Accuracy is measured by diagnostic characteristics such as sensitivity and specificity. Since there is insuffident evidence of the accuracy of the tests and their usefulness in improving patient outcomes, an economic evaluation could not be undertaken. On the strength of evidence pertaining to visual electrodiagnostic tests, MSAC recommends that: 1. public funding be supported for the following well-established tests recognised by the International Society of Clinical Electrophysiology of Vision - electroretinography; pattern electroretinography; dark adaptometry; electrooculography; visual evoked responses; and 2. due to insufficient evidence, public funding should not be supported at this time for the following tests - focal electroretinography; multifocal electroretinography; multifocal visual evoked potential; scotopic threshold response; intensity response function.




Aminoff's Electrodiagnosis in Clinical Neurology E-Book


Book Description

Appropriately select, implement, and interpret electrodiagnostic tests to identify a full range of central and peripheral nervous system disorders with Aminoff's Electrodiagnosis in Clinical Neurology! Covering everything from basic principles to the latest advances in electrodiagnosis, this medical reference book helps you make optimal use of this powerful but complex diagnostic modality in compliance with regulatory and professional standards, so you can diagnose patients accurately and initiate effective treatment and management strategies. - Deepen your understanding of the principles, scope, limitations, diagnostic importance, prognostic relevance, and complications for each technique. - Visually grasp the technical and practical aspects of electrodiagnostic tests with almost 800 charts, figures, and tables. - Rely on the knowledge, experience, and perspective of renowned expert Dr. Michael J. Aminoff and an international team of contributors comprised of a virtual "who's who" of clinical neurophysiology. - Keep up with developments in the field through significant updates, including new chapters on Artifacts and Normal Variants in the Electroencephalogram; Microneurography; Clinical Applications of Nerve Excitability Testing; Ultrasound of Muscle and Nerve; The Blink Reflex and Other Brainstem Reflexes; Visual Evoked Potentials,Electroretinography and Other Diagnostic Approaches to the Visual System; and Magnetic Stimulation in Clinical Practice and Research. - Access information on the go from your laptop or mobile device via expertconsult.com, featuring fully searchable text, and links to PubMed. - Meet regulatory and professional standards and apply best practices with state-of-the-art guidance (for both non-specialists and specialists) emphasizing the clinical applications of each electrodiagnostic technique. - Get easily actionable information and avoid mistakes with electrophysiologic findings integrated into the clinical context in which they are obtained.




Visual Electrodiagnosis in Systemic Diseases


Book Description

The research workers at the Eye Clinic of the Medical Academy of Erfurt are proud of having been entrusted, for the second time, with the organization of the yearly ISCEV symposium. Twelve years ago the 6th Symposium was held in Erfurt. This time we turned to Reinhardsbrunn, an old castle situated in the vicinity of Erfurt on the fringes of the wonderful mountainscape of the Thuringian Forest. Reinhardsbrunn castle serves today as a holiday hotel and convention place. It seemed to us to be the right place for carrying on the discussions in a comfortable and informal way after the actual sessions were over. Comparing the scientific reports read at the 6th and 17th Symposium, both organized in Erfurt, one readily becomes aware of the impressive advances in our rapidly developing field of interest. The technical and, more specifically, the electronic advancements have been enormous, especially in the field of recording and processing the visually evoked cortical potentials·. Adually, the addition of this special field of study to our realm, led to the renaming of the Society some years ago. Moreover, it became more and more obvious that interdisciplinary cooperation between ophthalmologists, physiologists, physi cists, technologists and mathematicians is essential. This is also reflected in the composition of our membership.




Visual Electrodiagnostics


Book Description