human
My doctor wants me to get a bone density scan. What does this test involve?
assistant
A bone density scan is an X-ray that measures the amount of calcium in your bones. It helps doctors diagnose osteoporosis, a condition where the bones become weak and brittle. The scan is usually done by a radiologist, who will take pictures of your bones from different angles. The pictures are then analyzed to determine if you have low bone mass or osteoporosis.