How ultrasound works to give images?

Answer 1

By creating an xray using sound waves.

Answer 2

Answer working of ultra sound

Ultra sound is a technique used to detect things which are unreachable as in the case of finding water bodies under the earths surface or the development of fetus in a mother's womb.
Ultrasound is essentially a form of sonar. You bounce sound waves off of things and by observing the reflection, you can form a picture of things that are hidden from view.

Answer 3

An imaging ultrasound is a simple, safe and routine procedure using very high frequency (ultrasonic) sound waves to "look inside" the body. In the exam room the sonographer will apply a gel to 1) aid in the conduction of the ultrasonic signal from the wand to the skin and 2) lubricate the skin to make it easier to slide the probe around. The ultrasonic probe will be placed on the skin and slid around while the sonographer looks at imaging results. Maneuvering the probe permits different "views" of a given area of interest. The interpretation of the displayed images is the real meat and potatoes of sonography. It's all about interpreting the results. A more experienced sonographer usually delivers a better interpretation or "reading" of the ultrasound. Because the procedure is non-invasive and quite benign, it is a slam dunk for many evaluations. Though there are limitations, ultrasounds ability to "see" the forms that soft tissue takes makes it a superb tool for things like prenatal checkups. Why not use the link and check out the Wikipedia article?

Answer 4

An ultrasound imaging device sends ultrasound waves into the body. Then

it detects the reflected sound waves. Different parts of the body, such as bones, muscles, the liver, or the heart, reflect sound

differently. ;).

Answer 5

Ultrasound is applied directly on

the skin of the patient using a

wand that is round headed. You

need to apply ultrasound gel on

the surface where the physical

therapy has to be done in order to reduce the friction on the

skin due to ultrasonic waves.

Generally, the frequency of the

therapeutic ultrasound in

physical therapy is in the range

of around 0.8-1.0 MHz. The ultrasonic waves are generated

due to the piezoelectric effect

caused by the crystals which

vibrate in the head of the

ultrasound wand. Ultrasound in physical therapy is

brought about by a set of

sound-waves which are produced

in the ultrasound wand. These

sound waves are then passed to

the affected area through your skin causing vibration to the

tissues. These vibrations produce

heat to the effected area but

the patient may not feel the

heat. Apart from the likely

heating effect that is produced by the ultrasound, there are

some other known effects as

well. The use of ultrasound in

physical therapy helps in the

relaxation of the tissues. They

break down the tissues on the scar and generate blood flow to

areas where it was previously

blocked.

Answer 6

An ultrasound machine sends sound waves into an object. Those sound waves bounce off of things inside the object hence creating a little image of what is there. When the waves come back they display an image on the screen.

Answer 7

A Doppler ultrasound sends sound waves through the body and it 'echos' off the insides of your body to produce the images that you normally would see on an ultrasound.