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Ultrasonic Measurement Techniques and Equipment Output Levels

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Book cover Essentials of Medical Ultrasound

Part of the book series: Medical Methods ((MM))

Abstract

The accurate measurement of the output levels of medical diagnostic and therapeutic ultrasound equipment have become important to manufacturers and users as a result of the increasing use of these devices. Such measurements are important for several reasons. First, there is the question of possible risk to health associated with diagnostic and therapeutic ultrasound. Accurate measurements of ultrasound levels used in biological effects investigations are needed so that other investigators can repeat the experiments. In addition, it is desirable that the output from equipment in clinical use be known so that it can be related to reported biological effects (Nyborg, 1977; Stratmeyer, 1977; Stewart et al., 1977; Stratmeyer and Stewart. 1979). Second, measurement procedures are necessaryfor the calibration of ultrasonic equipment (e.g., theraphy instruments) in which there is a need to provide a known exposure for various treatments. Third, it is important from the standpoint of equipment performance to know the ultrasonic output of equipment in relation to other performance parameters such as imaging capabality. Fourth , accurate measurement methods are needed if regulatory agencies are to evaluate equipment to ensure the proper calibration in compliance with performance standards (Federal Register, 1978, 1979; Repacholi and Benwell, 1979; Stewart et. al., 1980).

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  1. Bureau of Radiological Health, FDA, Rockville, Maryland, USA

    Harold F. Stewart

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  1. Harold F. Stewart
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  1. Health and Welfare Canada, Ottawa, Ontario, Canada

    Michael H. Repacholi  & Deirdre A. Benwell  & 

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Stewart, H.F. (1982). Ultrasonic Measurement Techniques and Equipment Output Levels. In: Repacholi, M.H., Benwell, D.A. (eds) Essentials of Medical Ultrasound. Medical Methods. Humana Press. https://doi.org/10.1007/978-1-4612-5805-6_3

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  • DOI: https://doi.org/10.1007/978-1-4612-5805-6_3

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