This technique will be familiar to many women who will have had scans done during pregnancy. The exact same technology can also be used to look at other organs of the body seeking out any abnormalities.

It is commonly used in the field of musculoskeletal and sports medicine to examine superficial soft tissues such as tendons, muscles and ligaments in real time. The advanatage being that with Ultrasound you can observe the tissues interact during movement. 

Ultrsound uses high frequency sound waves which reflect off the tissues at different rates to create images of those organs and is risk-free and painless.