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High Quality Content by WIKIPEDIA articles! Dual energy X-ray absorptiometry (DXA, previously DEXA) is a means of measuring bone mineral density (BMD). Two X-ray beams with differing energy levels are aimed at the patient's bones. When soft tissue absorption is subtracted out, the BMD can be determined from the absorption of each beam by bone. Dual energy X-ray absorptiometry is the most widely used and most thoroughly studied bone density measurement technology. The DEXA scan is typically used to diagnose and follow osteoporosis. It is not to be confused with the nuclear bone scan which is…mehr

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High Quality Content by WIKIPEDIA articles! Dual energy X-ray absorptiometry (DXA, previously DEXA) is a means of measuring bone mineral density (BMD). Two X-ray beams with differing energy levels are aimed at the patient's bones. When soft tissue absorption is subtracted out, the BMD can be determined from the absorption of each beam by bone. Dual energy X-ray absorptiometry is the most widely used and most thoroughly studied bone density measurement technology. The DEXA scan is typically used to diagnose and follow osteoporosis. It is not to be confused with the nuclear bone scan which is sensitive to certain metabolic diseases of bones in which bones are attempting to heal from infections, fractures, or tumors.