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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 ...
DXA scanners can be used to diagnose osteopenia or osteoporosis as well as to measure bone density over time as people age or undergo medical treatment or lifestyle changes. [23] Information from the DXA scanner creates a bone mineral density T-score by comparing a patient's density to the bone density of a healthy young person.
bone density studies for osteoporosis assessment Dual X-ray absorptiometry and laser technique (DXL) in the area of bone density studies for osteoporosis assessment is an improvement to the DXA Technique , adding an exact laser measurement of the thickness of the region scanned.
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]
Under previous guidelines, 14.3 million people in the U.S. would be eligible for screening. The new recommendation will include an additional 5 million people, Dahut said. The prognosis for people ...
Primary, or involuntary osteoporosis, can further be classified into Type I or Type II. [1] Type I refers to postmenopausal osteoporosis and is caused by the deficiency of estrogen. [1] While senile osteoporosis is categorized as an involuntary, Type II, and primary osteoporosis, which affects both men and women over the age of 70 years.
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]
It is an official journal of the International Osteoporosis Foundation and the National Osteoporosis Foundation. [3] The journal is published monthly and includes original research on all areas of osteoporosis and its related fields, alongside reviews, educational articles, and case reports. The co-editors-in-chief are J.A. Kanis and F. Cosman.