The value of dual-energy x-ray absorptiometry (DEXA) in the estimation of body composition

摘要: 1936 Learning Objectives 1. To provide an overview of dual-energy x-ray absorptiometry (DEXA) and its applications. 2. demonstrate specific situations that measurements varying components the body should be performed. 3. compare techniques composition analysis in different/several groups patients. Lean mass is a strong predictor outcome starvation variety acute chronic illnesses. Depletion fat-free (FFM) commonly occurs patients with obstructive pulmonary disease (COPD) renal failure (CRF). Several studies have proposed FFM significant factor respiratory function obese severe COPD, while depletion lean tissue/fat-free was prominent finding CRF. We also studied, using DEXA, relation bone mineral density exercise performance COPD. Whole DEXA (WBDEXA) can differentiate content (BMC) soft tissue surrounding by measuring amount fat tissue. This exhibit will illustrate application WBDEXA CRF COPD patients, impact accurate evaluation resulting better care improving their nutritional status. discuss superiority compared other such as anthropometry bioelectrical impedance analysis.