Musculoskeletal ultrasonography can be used to determine the tendon thickness, character, and presence of a tear. It works by sending extremely high frequencies of sound through the body. Some of these sounds are reflected back off the spaces between interstitial fluid and soft tissue or bone. These reflected images can be analyzed and computed into an image. These images are captured in real time and can be very helpful in detecting movement of the tendon and visualising possible injuries or tears. This device makes it very easy to spot structural damages to soft tissues, and consistent method of detecting this type of injury. This imaging modality is inexpensive, involves no ionizing radiation and, in the hands of skilled ultrasonographers, may be very reliable.