Ultrasound or sonography involves sending sound waves into the body. These sound waves are reflected off the internal organs and are then interpreted by special instruments that create an image of anatomic parts. No ionizing radiation (x-ray) is involved in ultrasound imaging. Ultrasound images are captured in real-time so they can show movement of internal tissues and organs and the flow of blood in the arteries and veins.
An ultrasound image is a useful way of examining the musculoskeletal system of the body to detect problems with muscles, tendons, ligaments, joints and soft tissue. Ultrasound images are captured in real time, so they can often show movement, function and anatomy, as well as enable radiologists to diagnose a variety of conditions and assess damage after an injury or illness.