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Bone densitometry, using an advanced technology called DXA (short for dual-energy x-ray absorptiometry), safely, accurately and painlessly measures bone mineral density. During a comprehensive examination with DXA, the patient lays comfortably still on a padded table while the DXA unit scans two or more areas, usually the fracture-prone hip and spine.
Unlike typical x-ray machines, radiation exposure during bone densitometry is extremely low - less than the radiation exposure during a coast-to-coast airline flight. The entire process takes only minutes to complete, depending on the number of sites scanned. It involves no injections or invasive procedures, and patients remain fully clothed.