Human response to short-term electrical exposure can be beneficial, as in the application of electrical stimulation for medical purposes, or pathological, as in unintended electric shock. This book is the first to offer a cohesive treatment of the subject, covering fundamental principles, specific human responses, and electrical safety.
Electric currents and electromagnetic fields have been applied to biological systems, particularly humans, with both therapeutic and pathological results. This text discusses biological responses to electric currents and electromagnetic fields, including medical applications and shock hazards. It covers fundamental physical and engineering principles of responses to short-term electrical exposure and emphasises human reactions, although animal responses are considered as well, and the treatment covers reactions from the just-detectable to the clearly detrimental. An important new chapter discusses standards for human exposure to electromagnetic fields and electric current and demonstrates how these standards have been developed using the principles treated in earlier chapters.
Electrotherapy Explained is an excellent research-based exploration of the major types of electrophysical agents used in clinical practice, particularly human and also animal. For the fourth edition, two new authors join the writing team, presenting the latest information for today's clinicians. The text has been completely updated with a major rewrite of the material, particularly that on electrical stimulation. This book continues to focus on evidence: clinical and biophysical evidence that affects how and which electrotherapies may be of use clinically and when. The inclusion of biophysics as well as clinical evidence and principles of application, enables clinicians to move away from traditional 'recipe-based' approaches and rely more on their own clinical reasoning. The focus remains on humans but the relevance of the principles for using and applying different modalities is explained clearly, providing guidelines for clinicians across disciplines and specialties. Up to date research detailing the evidence both supportive and deprecatory for the use of each modality Written by experts from biophysics and the clinical domains Comprehensive and well referenced Clear and well chosen illustrations elucidate the text Text boxes and summary sections help to break down what is sometimes a complex subject into manageable and memorable chunks Contraindications and risks have been updated in light of the most recent research Three books for the price of one - the website (http://booksite.elsevier.com/9780750688437) contains the entire texts of 'Physical Principles Explained' by Low and Reed, and 'Biophysical Bases of Electrotherapy' by Ward. The text directs readers to the website for further reading at relevant points.
TASER® Conducted Electrical Weapons are rapidly replacing the club for law-enforcement control of violent subjects within many countries around the globe. A TASER CEW is a hand-held device that delivers a 400-volt pulse with a duration tuned to control the skeletal muscles without affecting the heart at a distance of up to 6.5 meters over tiny wires. If necessary, it begins with an arcing voltage of 50,000 V to penetrate thick clothing; the 50,000 V is never delivered to the body itself. Due to the widespread usage of these devices and the widespread misconceptions surrounding their operation, this book will have significant utility. This volume is written for cardiologists, emergency physicians, pathologists, law enforcement management, corrections personnel, and attorneys.
Non-thermal irreversible electroporation is a new minimally invasive surgical p- cedure with unique molecular selectivity attributes – in fact it may be considered the first clinical molecular surgery procedure. Non-thermal irreversible electro- ration is a molecular selective mode of cell ablation that employs brief electrical fields to produce nanoscale defects in the cell membrane, which can lead to cell death, without an effect on any of the other tissue molecules. The electrical fields can be produced through contact by insertion of electrode needles around the undesirable tissue and non-invasively by electromagnetic induction. This new - dition to the medical armamentarium requires the active involvement and is of interest to clinical physicians, medical researchers, mechanical engineers, che- cal engineers, electrical engineers, instrumentation designers, medical companies and many other fields and disciplines that were never exposed in their training to irreversible electroporation or to a similar concept. This edited book is designed to be a comprehensive introduction to the field of irreversible electroporation to those that were not exposed or trained in the field before and can also serve as a reference manual. Irreversible electroporation is broad and interdisciplinary. Therefore, we have made an attempt to cover every one of the various aspects of the field from an introductory basic level to state of the art.
Electrostimulation is defined as the action of electrical energy on nerve and muscle OCo the two classes of excitable tissue. This cutting-edge resource offers you broad coverage of the subject, expanding the scope of electrostimulation discussions to include accidental, aversive, and possibly harmful biological effects of electrical energy. The book enables you to develop standards for human exposure to electric currents having various waveforms, determine classes of nerve fibers brought to excitation within specified regions of the body due to certain types of exposure, and quantify how harmonic distortions influence the excitability of sinusoidal extrostimulation. This practical reference also offers guidance in using the SENN (Spatially Extended Nonlinear Node) computer model that simulates the interaction of applied electric energy with myelinated neurons.Moreover, you learn how to compare efficacy and hazard potential of various stun weapons, assess unintended nerve stimulation from MRI exposure of patients with metallic implants, and compare the safety margins between electrostimulation thresholds of sensory and motor neurons relative to unintended cardiac excitation or painful sensory responses."
With an incredible 2400 illustrations, and written by a multitude of international experts, this book provides a comprehensive overview of both the physics and the clinical applications of MRI, including practical guidelines for imaging. The authors define the importance of MRI in the diagnosis of several disease groups in comparison or combination with other methods. Chapters dealing with basic principles of MRI, MR spectroscopy (MRS), interventional MRI and functional MRI (fMRI) illustrate the broad range of applications for MRI. Both standard and cutting-edge applications of MRI are included. Material on molecular imaging and nanotechnology give glimpses into the future of the field.
The fourth edition of Knight's Forensic Pathology continues to be the definitive international resource for those in training and in practice, covering all aspects of the medico-legal autopsy, including the cause and time of death, interpretation of wounds and every other facet of the investigation of a fatality.The contents are intended to lead th
