It is an imaging test used to examine bones that may have been affected / damaged due to cancer/any other disease. It is also known as scintigraphy.
The patient will be asked to remove any metal objects or jewelry that he may be wearing. A hospital gown will be given to wear.
If you have recently taken medications that contain bismuth or if you have undergone an x ray where barium meal was given, then doctor must be informed because barium and bismuth affect the test results.
If the radiotracer moves evenly through the bones, there is no anomaly and the result is considered normal.
If certain areas show increased or decreased accumulation of radiotracer material as compared to the surrounding areas, then the scan findings are abnormal in respect to those areas.
Areas that absorb little amount of tracer, will appear dark and are called as cold spots. This is also indicative of lack of blood supply to the bone and this is seen in cases of cancer.
Areas that absorb more amount of tracer are seen bright and are called as hot spots. They are seen in cases of fracture/ infection/trauma.
What will a bone scan show?
A bone scan will show areas of metabolism: increased/ decreased or normal bone metabolism.
How much time does a bone scan take?
A bone scan can take about an hour. Who must not undergo this test?
A pregnant woman should not undergo this test as there is use of radiations. A lactating mother is also not recommended a bone scan.
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