X-ray absorptiometry

Dual-energy X-ray absorptiometry (DXA) is a medical imaging technique used to measure bone mineral density. It works by comparing how two different X-ray energies are absorbed by the body, allowing for the measurement of bone mass. This method is particularly useful for assessing the mineral content of bones, making it a common tool for screening osteoporosis, a condition characterized by weakened and brittle bones. DXA scans are typically performed on the wrists, spine, and hips to estimate fracture risk. The results are interpreted using T-scores and Z-scores to compare a patient's bone density to that of healthy individuals.12