Final answer:
Dual-energy X-ray absorptiometry (DXA or DEXA) measures bone mineral density, primarily focusing on the hips and spine to diagnose and manage diseases like osteoporosis. The DEXA technology is valued for its precision in determining bone density and risk of fracture.
Step-by-step explanation:
Dual-energy X-ray absorptiometry, commonly referred to as DXA or DEXA, is a diagnostic imaging technology used to measure bone mineral density (BMD). The DEXA scan is capable of measuring bone density in various parts of the body. However, it is most frequently used to assess BMD in the hips and spine. This is critical for diagnosing conditions such as osteoporosis, where bone density is lower than normal and can lead to an increased risk of fractures. The measurement helps in determining an individual's risk for fractures and is useful for monitoring the effectiveness of treatment for osteoporosis and other conditions that cause bone loss.
The appendicular skeleton, including all bones of the body trunk and limbs, is also outlined in X-ray images like those produced through other forms of X-ray imaging. However, it is the DEXA's ability to measure bone density with precision that facilitates the diagnosis and management of bone health.