Details.
Ultrasound uses high frequency sound waves to form images of internal organs, blood vessels, muscles and soft tissues. Ultrasound guidance can also be used for procedures such as biopsies and joint injections. Preparation depends on the area being scanned and will be explained when booking. You may need to remove clothing and wear a gown. A water soluble gel is applied, and the examination may be uncomfortable as pressure is applied with the transducer.