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  2. Dual X-ray absorptiometry and laser - Wikipedia

    en.wikipedia.org/wiki/Dual_X-ray_absorptiometry...

    The standard in bone mineral density scanning developed in the 1980s is called Dual X-ray Absorptiometry, known as DXA. The DXA technique uses two different x-ray energy levels to estimate bone density. DXA scans assume a constant relationship between the amounts of lean soft tissue and adipose tissue.

  3. Osteoporosis - Wikipedia

    en.wikipedia.org/wiki/Osteoporosis

    Dual-energy X-ray absorptiometry (DEXA scan) is considered the gold standard for the diagnosis of osteoporosis. Osteoporosis is diagnosed when the bone mineral density is less than or equal to 2.5 standard deviations below that of a young (30–40-year-old [ 4 ] :58 ), healthy adult women reference population.

  4. Dual-energy X-ray absorptiometry - Wikipedia

    en.wikipedia.org/wiki/Dual-energy_X-ray...

    Dual-energy X-ray absorptiometry is the most widely used and most thoroughly studied bone density measurement technology. The DXA scan is typically used to diagnose and follow osteoporosis, as contrasted to the nuclear bone scan, which is sensitive to certain metabolic diseases of bones in which bones are attempting to heal from infections ...

  5. Bone density - Wikipedia

    en.wikipedia.org/wiki/Bone_density

    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]

  6. Trabecular bone score - Wikipedia

    en.wikipedia.org/wiki/Trabecular_bone_score

    The trabecular bone score is a textural parameter that can be applied to DEXA, which quantifies the local variations in gray level. TBS is derived from the evaluation of the experimental variogram, obtained from the grayscale DEXA. [citation needed] It was found that TBS is a reflection of the structural condition of the bone microarchitecture.

  7. Osteopenia - Wikipedia

    en.wikipedia.org/wiki/Osteopenia

    A DXA scanner in use. The National Osteoporosis Foundation recommends use of central (hip and spine) DXA testing for accurate measure of bone density, emphasizing that peripheral or "screening" scanners should not be used to make clinically meaningful diagnoses and that peripheral and central DXA scans cannot be compared to each other. [22]

  8. Radiofrequency Echographic Multi Spectrometry - Wikipedia

    en.wikipedia.org/wiki/Radiofrequency_Echographic...

    Radiofrequency Echographic Multi Spectrometry (REMS) is a non-ionizing technology for osteoporosis diagnosis and for fracture risk assessment. REMS processes the raw, unfiltered ultrasound signals acquired during an echographic scan of the axial sites, femur and spine. The analysis is performed in the frequency domain.

  9. United States Preventive Services Task Force - Wikipedia

    en.wikipedia.org/wiki/United_States_Preventive...

    The USPSTF has changed its breast cancer screening recommendations over the years, including at what age women should begin routine screening. In 2009, the task force recommended women at average risk for developing breast cancer should be screened with mammograms every two years beginning at age 50. [ 12 ]

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