An ultrasound scan uses high frequency sound waves to examine various structures in the body including large organs and blood vessels. High frequency sound waves are transmitted into the body when a scanning probe is placed on the skin which enables the ultrasound machine to produce live or real-time images of your internal organs.
Most people associate ultrasound scans with pregnancy. These scans can provide an expectant mother with the first view of her unborn child. However, the test has many other uses.
Your doctor may order an ultrasound if you’re having pain, swelling, or other symptoms that require an internal view of your organs.
An ultrasound can provide a view of the:
Bladder, prostate, gallbladder, kidneys, liver, ovaries, pancreas, spleen, thyroid, testes, uterus, blood vessels, muscle.
An ultrasound radiographer, called a sonographer, will apply a special lubricating gel to your skin. This prevents friction so they can glide the ultrasound transducer on your skin. The transducer has a similar appearance to a wand. The gel also helps transmit the sound waves, which then forms a picture that can be interpreted by the doctor.
Depending on the area being examined, you may need to change positions so the technician can have better access.