What does DEXA stand for in medical imaging?

DEXA stands for Dual-Energy X-ray Absorptiometry, which is a specific type of imaging technique used primarily to measure bone mineral density. This method employs two different energy levels of X-rays to assess the absorption of radiation through bone tissue, allowing for the calculation of bone density. This is particularly important in diagnosing conditions such as osteoporosis, as it helps evaluate the risk of fractures and monitor changes in bone density over time.

The use of dual-energy X-rays enhances the accuracy of the measurements by distinguishing bone mass from soft tissue, reducing the influence of variations in body composition on the results. The technology is widely recognized and utilized in both clinical and research settings for its precision and efficiency in assessing skeletal health.