An ultrasound scan performed by an ultrasonographer, obtains images of the body without the use of x-rays. It uses high frequency sound waves which pass through the skin and are reflected by the internal organs. Using a computer, the resulting ‘echoes’ are converted into pictures on the screen.
During the examination, ultrasound gel is applied to the area of interest and then a small handheld probe is placed on your skin and moved over the part of the body being examined. Depending on the type of ultrasound you are having, the scan can take between 10 minutes to an hour.
In order to prepare for some ultrasound scans you may be instructed to not eat anything, to avoid certain foods beforehand, or you may be required to drink water and attend with a full bladder. Please read your appointment letter carefully for any necessary preparation.