Dual-energy X-ray absorptiometry
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 DEXA assessment of bone mineral density of the femoral neck (A) and the lumbar spine (B): T scores of - 4.2 and - 4.3 were found at the hip (A) and lumbar spine (B), respectively in a 53 year-old male patient affected with Fabry disease. |
Dual-energy X-ray absorptiometry (DXA, previously DEXA) is a means of measuring bone mineral density (BMD). Two X-ray beams with different 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.
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| Non-invasive testing of bone density explained Non-invasive testing of bone density explained www.osteoporosisadvice.com/testing-bone-density.php - Web |
| Information for patients Information for patients www.radiologyinfo.org/content/dexa.htm - Web |
| Bone Densitometry explained Bone Densitometry explained courses.washington.edu/bonephys/opbmd.html#tz - Web |
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