Dual-energy X-ray absorptiometry (DEXA or DXA) uses X-rays to quickly measure bone density and detect osteopenia.
Dual-energy X-ray absorptiometry (DEXA or DXA) is a medical imaging technique that utilizes X-rays to assess and quantify bone mineral density (BMD). Specifically designed for the diagnosis of conditions like osteopenia and osteoporosis, DEXA scans measure the absorption of X-rays by bone tissues. The denser the bone, the fewer X-rays are absorbed, resulting in a higher image contrast.
By comparing the attenuation of X-rays at different energy levels, DEXA provides accurate and quick measurements of bone density, particularly in the spine, hip, and other critical skeletal sites. This information aids in the early detection of conditions characterized by decreased bone density, such as osteopenia, allowing for timely intervention and management to prevent further bone loss and associated complications.