A low-dose X-ray test that measures bone mineral density.
Also known as: DXA, dual-energy X-ray absorptiometry, bone density scan
A DEXA (dual-energy X-ray absorptiometry) scan is a quick, low-radiation imaging test that measures bone mineral density, usually at the hip and spine.
Results are expressed as a T-score, which is used to diagnose osteopenia and osteoporosis.