Bone Density & Tissue Composition
Dual-energy X-ray absorptiometry (Dexa) is a method employing spectral imaging to measure bone mineral density. DEXA enables the radiologist to assess the bone mineral status of the spine, hip and other skeletal sites to confirm bone loss. This scan is most often used for Osteoporosis Screening.
Two X-ray beams, with different energy levels, are passed through the bones and the difference in value is used to calculate bone density, mineral levels and bone loss. A lower than average bone density is an indicator for osteoporosis susceptibility and increased risk for fracture.
There is no special preparation required for this type of imaging.
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