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Dual-energy X-ray absorptiometry (DXA, or DEXA [1]) is a means of measuring bone mineral density (BMD) with spectral imaging. Two X-ray beams, with different energy levels, are aimed at the patient's bones. When soft tissue absorption is subtracted, the bone mineral density (BMD) can be determined from the absorption of each beam by bone. Dual ...
A scanner used to measure bone density using dual energy X-ray absorptiometry. Bone density, or bone mineral density, is the amount of bone mineral in bone tissue.The concept is of mass of mineral per volume of bone (relating to density in the physics sense), although clinically it is measured by proxy according to optical density per square centimetre of bone surface upon imaging. [1]
At the hip, a DXA-equivalent T-score may be calculated for comparison to the WHO classification at the proximal femur as normal, osteopenia (T-Score < -1.0 and > -2.5) or osteoporosis (T-Score < -2.5). [17] This T-Score may also be used for fracture risk probability calculation in the WHO FRAX tool [18] with "T-Score" as the appropriate DXA ...
About 22 million women and 5.5 million men in the European Union had osteoporosis in 2010. [15] In the United States in 2010, about 8 million women and between 1 and 2 million men had osteoporosis. [13] [16] White and Asian people are at greater risk. [3] The word "osteoporosis" is from the Greek terms for "porous bones". [17]
Human body weight is a person's mass or weight.. Strictly speaking, body weight is the measurement of mass without items located on the person. Practically though, body weight may be measured with clothes on, but without shoes or heavy accessories such as mobile phones and wallets, and using manual or digital weighing scales.
In 2018, HHS released an update to the first set of guidelines. This 2018 edition provides guidelines for people aged three years and older and summarizes the new knowledge gained from studies that were conducted since the first edition was released in 2008. These Guidelines can be tailored to meet individual interests, lifestyles, and goals.
The waist-to-height ratio (WHtR, [a] or WSR: waist-to-stature ratio) is the waist circumference divided by body height, both measured in the same units.. WHtR is a measure of the distribution of body fat.
The Gay and Lesbian Teachers and Students Association (GaLTaS) was an Australian LGBT organisation active from 1991 to 1998 that was established during a wave of gay gang murders, to publicise widespread problems of anti-gay bullying and violence in Australian schools, as well as to offer support and a path to redress for its victims.