DEXA Bone Densitometry Scans Medical Services > Imaging Services > Services > DEXA Bone Densitometry ScansText size: A- A+ Services Ultrasound DEXA Bone Densitometry Scans Health Library Locations News, Events & Classes Photos, Videos & Tours Ultrasound DEXA Bone Densitometry Scans Dual Energy X-ray Absorptiometry (DEXA) scanning is the most accurate and comprehensive way to test bone density, diagnose osteoporosis and assess vertebral fractures. St. David’s HealthCare offers the most advanced DEXA scanner available. Are you at risk? Prevent & protect. Discover your heart's age Estimate your risk of Breast Cancer What contributes to back and neck pain?