Asmall device called an ultrasound probe is used, which gives off high-frequency sound waves.
You can't hear these sound waves, but when they bounce off different parts of the body, they create "echoes" that are picked up by the probe and turned into a moving image.
This image is displayed on a monitor while the scan is carried out.
An ultrasound scan, sometimes called a sonogram, is a procedure that uses high-frequency sound waves to create an image of part of the inside of the body.
Asmall device called an ultrasound probe is used, which gives off high-frequency sound waves. You can't hear these sound waves, but when they bounce off different parts of the body, they create "echo
Before having some types of ultrasound scan, you may be asked to follow certain instructions to help improve the quality of the images produced. For example, you may be advised to: drink water and
Most ultrasound scans last between 15 and 45 minutes.Theyusually take place ina hospital radiologydepartment andare performed either by a radiologist or a sonographer. They can also be carried out in
In most cases, there are no after-effects and you can go home soon after the scan is finished. If a sedative wasn't used, you can drive, eat, drink and return to your other normal activities straight
There are no known risks from the sound waves used in an ultrasound scan. Unlike some other scans, such as computerised tomography (CT) scans , ultrasound scans don't involve exposure to radiation .