Ultrasound imaging uses soundwaves to produce pictures of muscles, tendons, ligaments and joints throughout the body. It is often the gold standard to diagnose sprains, strains, tears, and other soft tissue conditions. Ultrasound is safe, noninvasive, and does not use radiation. For orthopedic and sports injuries your pain often occurs only when you are moving. The ultrasound allows the doctor to visualize the body while you are moving the joint in real time, allowing a much more accurate and functional diagnosis.