Author: Admin (---.cu27.vnnyca.adelphia.net)
Date: 05-15-02 07:14
A gallium scan is intended to locate areas of infection and inflammation within the body
After I.V. injection of a radio-active compound, the patient is scanned at varying intervals up to 96 hours after the injection. Inflammed tissues, such as lymphoma (cancer) or infection or sarcoid, can be seen, and sometimes distinguished, on the Xray, CAT or PET scanners used to detect (scan) the emitted radiation.
There are many limitations with a "Gallium Scan'. The procedure is costly, it requires 48 to 72 hours for proper interpretation, and the uptake reverses quickly during corticosteroid therapy. New radionucleides have been used to try and overcome these limitations, with varying success.
The use of a more sensitive P.E.T. scanner can often assist in obtaining contrast, especially with weaker radionucleides and at greater times after the initial injection.
If your doctor can't figure out the presence and location of inflammation from Xrays, CAT or MRI scans then a gallium scan usually ordered. But it can be an imprecise test, and other scanning technologies are more suitable to follow the progress of the inflammation.
..Trevor..
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