Search results
Results From The WOW.Com Content Network
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]
Aspirin in men 45 to 79 and women 55 to 79 for cardiovascular disease; Colon cancer screening by colonoscopy, occult blood testing, or sigmoidoscopy in adults 45 to 75. [11] Low-dose CT scans for adults 55 to 80 at increased risk of lung cancer; Osteoporosis screening via bone dual-energy X-ray absorptiometry (DEXA) in women over 65
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.
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 ...
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.
In physiology and medicine, the body surface area (BSA) is the measured or calculated surface area of a human body.For many clinical purposes, BSA is a better indicator of metabolic mass than body weight because it is less affected by abnormal adipose mass.
The International Osteoporosis Foundation organises the annual World Osteoporosis Day, observed internationally on October 20. [10] The day is dedicated to raising global awareness of the prevention, diagnosis and treatment of osteoporosis and related diseases of bones, muscles and joints. [11] [12]