L. A. Geddes – författare

Encyclopedia of Medical Devices and Instrumentation John G. Webster, Editor-in-Chief This comprehensive encyclopedia, the work of more than 400 contributors, includes 266 articles on devices and instrumentation that are currently or likely to be useful in medicine and biomedical engineering. The four volumes include 3,022 pages of text that concentrates on how technology assists the branches of medicine. The articles emphasize the contributions of engineering, physics, and computers to each of the general areas of medicine, and are designed not for peers, but rather for workers from related fields who wish to take a first look at what is important in the subject. Highly recommended for university biomedical engineering and medical reference collections, and for anyone with a science background or an interest in technology. Includes a 78-page index, cross-references, and high-quality diagrams, illustrations, and photographs. 1988 (0 471-82936-6) 4-Volume Set Introduction to Radiological Physics and Radiation Dosimetry Frank Herbert Attix provides complete and useful coverage of radiological physics. Unlike most treatments of the subject, it encompasses radiation dosimetry in general, rather than discussing only its applications in medical or health physics. The treatment flows logically from basics to more advanced topics. Coverage extends through radiation interactions to cavity theories and dosimetry of X-rays, charged particles, and neutrons. Several important subjects that have never been thoroughly analyzed in the literature are treated here in detail, such as charged-particle equilibrium, broad-beam attenuation and geometries, derivation of the Kramers X-ray spectrum, and the reciprocity theorem, which is also extended to the nonisotropic homogeneous case. 1986 (0 471-01146-0) 607 pp. Medical Physics John R. Cameron and James G. Skofronick This detailed text describes medical physics in a simple, straightforward manner. It discusses the physical principles involved in the control and functon of organs and organ systems such as the eyes, ears, lungs, heart, and circulatory system. There is also coverage of the application of mechanics, heat, light, sound, electricity, and magnetism to medicine, particularly of the various instruments used for the diagnosis and treatment of disease. 1978 (0 471-13131-8) 615 pp.

During the last two decades, many new techniques and devices have appeared for measuring blood pressure both directly and indi­ rectly. At present, there is no single source for this information; nor is there information on the accuracy and sources of error expected with these technologies. It is for this reason that the present book was written. Divided into three parts: direct measurement, indirect (noninvasive) measurement, and history, the book is directed toward a broad audience in the medical and biological sciences. Physicians, nurses, medical students, and psychologists, as well as technical persons in the health care field will find Part One of considerable practical value, because it deals with the subject of the accuracy and fidelity of reproduction of blood pressure waveforms tha t they regularly view on monitors. The definitions of systolic, mean, diastolic, and capillary wedge pressures are illustrated and discussed. The pressures and waveforms at different sites in the cardiovascular system are described in detail. Then the various types of devices for measuring blood pressure are described and thoroughly illustrated. The effect of length and internal diameter of a catheter is analyzed to illustrate how fidelity of reproduction is affected. Simple tests are described that show the reader how to determine the performance characteristics of a catheter-transducer system. The characteristics of catheter-tip transducers are presented, and Part One concludes with a discussion of the rate of change of pressure (dP/dt), what it means, and how such a recording can be calibrated.