Dual-energy X-ray absorptiometry (DXA) is a safe and quick technique,
and requires little cooperation from the patient. DXA has therefore be
en introduced progressively in paediatrics and neonatology to study bo
ne mineral content and body composition. The limits of DXA are related
mainly to accuracy, and it is too early to claim that DXA is a 'gold
standard' technique for body composition research. However, DXA appear
s to be an adequate tool for measuring bone mass and body composition
in the clinical setting, and it represents the best technical choice f
or paediatric use to date.