Power Doppler Sonography: Applications in Musculoskeletal Imaging.

Power Doppler sonography (PDS) is a recently developed technique that depicts moving blood volume within tissues. The enhanced sensitivity of PDS makes it possible to depict soft tissue vascularity, facilitating its role in the evaluation of musculoskeletal inflammatory diseases. A broad range of new and potential applications of PDS in the musculoskeletal system will be described including its use in the setting of bursal, tendon, articular, and muscle diseases, and in the evaluation of fluid collections and soft tissue masses.