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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2 Basics of Ultrasound Imaging Vincent Chan and Anahi Perlas 13 14 14 14 15 18 19 19 Introduction ................................................................................................................... Basic Principles of B-Mode US...................................................................................... Generation of Ultrasound Pulses ................................................................................... Ultrasound Wavelength and Frequency ..........
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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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X-rays and Ultrasound: X-rays and ultrasound are two different modalities used for different things‚ so an ultrasound can do some things an X ray cannot‚ and vice versa‚ and so this makes them very difficult to directly compare. Ultrasound: Above: An ultrasound machine. Ultrasound is the use of energy generated by sound waves of 20‚000 or more vibrations per second. Ultrasounds are generated by a device called a transducer. Bearing in mind that sound is a mechanical energy‚ the transducer
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when I grew up. After weeks and weeks of research I finally found something that I found interesting‚ and worth doing for a living. My goal is to become an ultrasound technician. An ultrasound technician conducts sonograms to help physicians diagnose and screen medical conditions. Now‚ when most people say they want to be an ultrasound technician they automatically think they’re going to be giving sonograms of unborn babies; but in reality sonographers take sonograms of all your body’s organs. Some
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English 3B Period 2 04 February 2013 Life of Women in the 19th Century Women’s life in New England in the nineteenth century was not easy compared to life now. Women worked all day everyday‚ as well as men and kids that were old enough. There were many different jobs and duties that were part of a woman’s everyday routine. During these days women were not allowed to vote. Women were not treated equally‚ and did not have equal rights as men did. Men treated their wife’s as if they were their
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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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interested in being an ultrasound technician. I have interviewed a registered nurse and an ultrasound technician. I have also read reviews online posted by registered nurses and doctors. After reading and reviewing these interviews I have come to the conclusion that I have made a good choice. While interviewing Dr. Nowak‚ an ultrasound technician‚ I gathered a lot of information useful in choosing a career. Dr. Nowak explained to me many aspects of being an ultrasound technician. During this interview
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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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