Ultrasound Ultrasound is an imaging technique that uses high frequency sound wave and echoes. There are different kinds of ultrasound they are two-dimensional image‚ 3D ultrasound imagining‚ and Doppler ultrasound. Doppler ultrasound is based on the Doppler effect. (Doppler effect is whenever relative motion exists between a source of sound and a listener and the frequency of the sound heard by the listener sounds different compared to the frequency when there is no motion.) The frequency of the
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Ultrasound Quick Project Ultrasounds are sound waves with frequency beyond the human limits‚ therefore humans are unable to hear them. It even travels at exactly the same speed as sound in any medium. Humans can hear sound within the frequency range of about 20 to 20‚000 Hz‚ so any sound above 20 kHz is ultrasound. Ultrasound or ultrasonography is a medical imaging technique that uses high frequency sound waves and their echoes. The technique is similar to the echolocation used by bats‚ whales
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Georguson Dr. Hutcheon English 1A 8 October 2014 An Ultrasound Decision “According to the U.S. Department of Labor‚ employment of diagnostic medical sonographers should grow faster than average for all occupations through 2016” (The Top 100: The Fastest-Growing Careers for the 21st Century 130). The field of ultrasound imaging is growing rapidly‚ and‚ consequently‚ the demand for certified professionals. My genuine pursuit of a career as an ultrasound technologist only began recently‚ which is why I
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to be an ultrasound technician. My step-mom and Aunt-in-law both have accomplished roles in the medical field. They are definitely two role models I want to follow. I won’t let this goal fall through the cracks. However‚ to become an ultrasound technician there are certain steps I have to take. To get started‚ an ultrasound technician (which is also called a diagnostic medical sonographer) uses high-frequency sound waves that create images of soft tissue in a patient’s body. The ultrasound waves create
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Application of Ultrasound In Medical And Industrial field The term ultrasound defines sound waves of frequencies above the threshold of human hearing‚ 20 kHz. Ultrasound may be propagated in a variety of modes through different materials and offers a wide range of both medical and industrial applications. In the medical field‚ the development of a foetus is routinely monitored by ultrasound; cardiac irregularities‚ along with kidney stones and osteoporosis may all be identified. Ultrasound also offers
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Austin Smith Technology has advanced Ultrasound Waukesha County Technical College 12/3/13 Table of Contents Abstract……………………………………………………………..page 3 Introduction…………………………………………………………page 4 3d/4D imaging………………………………………………………page 4 Pure Wave Transducer………………………………………………page 5 Color Doppler……………………………………………………….page 6 Point-of-Care………………………………………………………..page 6 Conclusion…………………………………………………………..page 7 Reference page………………………………………………………page 8 Abstract
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PHYSICS Why did humans can’t hear the ultrasound unlike the dogs? Ultrasound is a cyclic sound pressure wave with a frequency greater than the upper limit of the human hearing range. Ultrasound is thus not separated from "normal" (audible) sound based on differences in physical properties‚ only the fact that humans cannot hear it. Although this limit varies from person to person‚ it is approximately 20 kilohertz (20‚000 hertz) in healthy‚ young adults. Ultrasound devices operate with frequencies from
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CASE 28 Ultrasound Machines‚ India‚ China‚ and a Skewed Sex Ratio General Electric Co. and other companies have sold so many ultrasound machines in India that tests are now available in small towns like Indergarh‚ where there is no drinking water‚ electricity is infrequent‚ and roads turn to mud after a March rain shower. A scan typically costs $8‚ or a week’s wages. GE has waded into India’s market as the country grapples with a difficult social issue: the abortion of female fetuses by families
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Noninvasive Magnetic Resonance Imaging (MRI) Guided Focused Ultrasound (FUS) Treatment for Breast Cancer Magnetic resonance imaging guided focused ultrasound is completely noninvasive treatment for breast cancer which requires less anesthesia‚ recovery time and could avoid infections‚ scar formation and possibly reduce cost. It is the method of choice for accurate delimitation of many breast tumors‚ it can noninvasively measure ultrasound induced temperature. The combination of MRI and FUS concurrently
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TRANSDUCERS Transducers are electric or electronic devices that transform energy from one form to another. A transducer is a device that converts one form of energy to other form. It converts the measureand to a usable electrical signal. In other word it is a device that is capable of converting the physical quantity into a proportional electrical quantity such as voltage or current. Industrial uses of transducers - Temperature‚ force‚ strain‚ liquid level‚ flow rate‚ electrical conductivity
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