Densitometry techniques -- Skeletal anatomy in densitometry -- Statistical overview for the non-statistician densitometrist -- Quality control -- Radiation safety in x-ray densitometry -- Bone density data among technologies and manufacturers -- Selecting patients for bone mass measurements : clinical guidelines -- Selecting patients for bone mass measurements : self-assessment indices -- Diagnosing ostoporosis -- Predicting fracture risk -- Monitoring changes in bone density -- Secondary causes of osteoporosis -- New applications for DXA -- Reporting densitometry -- FDA-approved densitometry devices