Definition Dual X Ray Absorptiometry
Compared to a regular x ray scan a dexa scan is much more sensitive to changes in bone density.
Definition dual x ray absorptiometry. How to use dual energy x ray absorptiometry in a sentence. Dual energy x ray absorptiometry dxa previously dexa is a means of measuring bone mineral density bmd using spectral imaging two x ray beams with different energy levels are aimed at the patient s bones when soft tissue absorption is subtracted out the bone mineral density bmd can be determined from the absorption of each beam by bone. Dxa is also increasingly used to measure body composition in terms of fat and fat fre. This review describes the advantages and limitations of dual energy absorptiometry dxa a technique that is widely used clinically to assess a patient s risk of osteoporosis and to monitor the effects of therapy.
Dual energy x ray absorptiometry definition is absorptiometry in which the density or mass of a material such as bone is measured by comparing the material s absorption of x rays of two different energies and which is used especially for determining the mineral content of bone abbreviation dexa dxa. Mittels dexa können messungen der knochendichte am ganzen körper bevorzugt an wirbelsäule oberschenkel schenkelhals und anderen speziellen regionen bestimmt werden. Dual energy x ray absorptiometry synonyms dual energy x ray absorptiometry pronunciation dual energy x ray absorptiometry translation english dictionary definition of dual energy x ray absorptiometry. Dual x ray absorptiometry synonyms dual x ray absorptiometry pronunciation dual x ray absorptiometry translation english dictionary definition of dual x ray absorptiometry.
It focuses on two main areas your hip and your spine. These areas can give your doctor a good idea of whether you re. Dxa dū ăl eks rā ăb sorp shē om ĕ trē use of low dose x radiation of two different energies to measure bone mineral content and fat lean ratios at different anatomic sites. Define dual x ray absorptiometry.
Used to evaluate osteoporosis at very low dosage. Measurement of bone mineral density by calculation of the absorptiometry at two different photon energies. Dual energy x ray absorptiometry. Dual energy x ray absorptiometry is the most.