A bone scan is a nuclear imaging test that helps diagnose and track several types of bone disease. Your doctor may order a bone scan if you have unexplained skeletal pain, a bone infection or a bone injury that can't be seen on a standard X-ray. A bone scan can also be an important tool for detecting cancer that has spread (metastasized) to the bone from the tumor's original location, such as the breast or prostate.
If you have unexplained bone pain, a bone scan might help determine the cause. The test is very sensitive to any difference in bone metabolism. The ability to scan the entire skeleton makes a bone scan very helpful in diagnosing a wide range of bone disorders.
A bonescan is done for diagnosis of following conditions:
Paget's disease of bone
Cancer originating in bone
Cancer that has metastasized to bone from a different site
Infection of the joints, joint replacements or bones (osteomyelitis)
Impaired blood supply to bones or death of bone tissue (avascular necrosis)
The Cost of Bone Scan is normally in range of INR 3500 to 12000 depending upn the area sacnned.
You'll be asked to lie still on a table while an arm-like device supporting a tracer-sensitive camera passes back and forth over your body. The scan itself can take up to an hour. The procedure is painless.
A doctor who specializes in reading images (radiologist) will look for evidence of abnormal bone metabolism on the scans. These areas appear as darker "hot spots" and lighter "cold spots" where the tracers have or haven't accumulated.
Although a bone scan is very sensitive to abnormalities in bone metabolism, it's less helpful in determining the exact cause of the abnormality. If you have a bone scan that shows hot spots, more testing may be needed to determine the cause.