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Medical ultrasound

en.wikipedia.org/wiki/Medical_ultrasound

Medical ultrasound is a diagnostic imaging technique based on the application of ultrasound. It is used to see internal body structures such as tendons, muscles, joints, ... Ultrasound is sound wave...

An ultrasound system can produce images of body structures ...

www.answers.com/Q/An_ultrasound_system_can_produce_images_of_body_structures_because_sound_waves

travel at different speeds through materials of different densities. ... An ultrasound system can produce images of body structures because sound waves?

Medical Imaging > Ultrasound Imaging

www.fda.gov/Radiation-EmittingProducts/RadiationEmittingProductsandProcedures/MedicalImaging/ucm115357.htm

Dec 16, 2014 ... Because ultrasound images are captured in real-time, they can show ... Ultrasound imaging (sonography) uses high-frequency sound waves to view inside the body. ... based on the reflection of the waves off of the body structures. ... as X-rays or other types of imaging systems that use ionizing radiation.

Fundamentals of Ultrasound Imaging - Dynamic Ultrasound Group

dynamicultrasound.org/dugphysics.html

The ultrasound image is created by first transmitting sound waves into the body and ... This is achieved using a hand held probe which contacts the body via a water based gel. ... in ultrasound imaging has a profound effect on how structures appear. ... Shorter pulses can be achieved using higher frequency, so the highest  ...

ultrasound Facts, information, pictures | Encyclopedia.com articles ...

www.encyclopedia.com/topic/ultrasound.aspx

ultrasound or sonography, in medicine, technique that uses sound waves to study ... sound waves at tissues in the body to generate images of anatomical structures. ... A technique called Doppler imaging ultrasonography can also be used to view .... Because air acts as such a strong reflector of an ultrasonic wave, gel or ...

83.07.05: The Basic Concepts of Diagnostic Ultrasound1

www.yale.edu/ynhti/curriculum/units/1983/7/83.07.05.x.html

The human ear can hear sound waves that have a frequency of 20-20,000 ... Section I: Diagnostic Ultrasound and Section II: A Little Math Here and There ... Because of this interface, some of the sound wave will be reflected back and ... Ultrasound medical imaging produces readable images of inner body structures and ...

How Ultrasound Works

www.physics.utoronto.ca/~jharlow/teaching/phy138_0708/lec04/ultrasoundx.htm

In this edition of How Stuff Works, we will look at how ultrasound works, what type of ... a medical imaging technique that uses high frequency sound waves and their echoes. ... The sound waves travel into your body and hit a boundary between tissues (e.g. ... The transducer probe is the main part of the ultrasound machine.

Tutorial 1 - Basic physics of ultrasound and the Doppler ...

www.criticalecho.com/content/tutorial-1-basic-physics-ultrasound-and-doppler-phenomenon

While the term ultrasound generally refers to sound waves with frequencies above 20,000 ... albeit lower resolution and can be used to image deeper structures. ... because parts of it are reflected, scattered, absorbed, refracted or diffracted. ... Typically in soft tissues, the amplitude of an echo produced at a boundary is only a ...

Basics of Ultrasound Imaging - Springer

www.springer.com/cda/content/document/cda_downloaddocument/9781441916792-c1.pdf?SGWID=0-0-45-1061051-p174073264

Ultrasound has been used to image the human body for over half a century. .... Sound waves can be described in terms of their frequency (measured .... of a structure on an ultrasound image. Because the speed of sound is low in fat ... multiple scattered echoes produced within the volume of the incident ultrasound pulse.2.

Ultrasound scan - Better Health Channel

www.betterhealth.vic.gov.au/health/conditionsandtreatments/ultrasound-scan

An ultrasound scan uses high-frequency sound waves to make an image of a ... The ultrasound machine directs high-frequency sound waves at the internal body structures ... Sometimes, doctors will use ultrasound scanning to monitor and guide ... easily by ultrasound because air prevents the transfer of the sound waves ...

More Info

Ultrasound (Sonography) - RadiologyInfo.org

www.radiologyinfo.org

Ultrasound is safe and painless, and produces pictures of the inside of the body using sound waves. ... Because ultrasound images are captured in real-time, they can show the structure and movement of the body's internal organs, as well as .... In an ultrasound examination, a transducer both sends the sound waves and ...

Ultrasound Production and Interactions

www.sprawls.org

This is because sound waves are actually vibrations passing through a material. ... Some of the pulses will be reflected by internal body structures and send ... Echoes, which show up as bright or white spots in the image are produced by ... The basic functional components of an ultrasound imaging system are shown below.

How ultrasound imaging works explained simply.

www.howequipmentworks.com

Mar 18, 2015 ... The sound waves bounce on objects such as the strawberry. .... That is one reason why it is more difficult to image deeper structures. ... An ultrasound machine scanning in “A scan” mode can be used. .... might think that using the lowest frequency is the best because it gives a longer depth of penetration.