Dual energy X-ray absorptiometry (DXA) is used to determine bone mineral density in the central skeleton; spine, hip, and total body. It is very precise and is considered the “gold standard” in determining bone density for diagnosis and treatment follow-up for osteoporosis.
Bone mass measurements predict a patient’s future risk of fracture.
Clinical circumstances in which bone density measurement is appropriate
For risk assessment in perimenopausal or postmenopausal women who are concerned about osteoporosis and willing to accept intervention.
In women with X-ray findings that suggest the presence of osteoporosis.
In women beginning or receiving long-term steroid therapy.
For perimenopausal or post menopausal women with asymptomatic hyperparathyroidism, in whom evidence of skeletal loss would result in hyperparathyroidectomy.
In women undergoing treatment for osteoporosis as a tool for monitoring the therapeutic response.