What is a bone scan primarily used for?

A bone scan is primarily used for visualizing bone infections or abnormalities. This imaging technique allows healthcare professionals to obtain detailed information about the metabolic activity of bones, which is particularly useful in identifying areas with increased bone turnover or inflammation. These areas may signal conditions such as infections, tumors, or certain types of arthritis. The process typically involves the injection of a small amount of radioactive material that is attracted to areas of high bone activity, providing a clear picture of bone health and assisting in accurate diagnosis.

Other imaging techniques, such as MRI or ultrasound, tend to be more suitable for assessing soft tissue injuries, like ligament injuries or muscle tears, and may provide better information for conditions like joint effusions. Therefore, while those other options may be relevant to musculoskeletal injuries, they do not align with the primary purpose of a bone scan.