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DeCS
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Descriptor English:
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Absorptiometry, Photon
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Descriptor Spanish:
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Absorciometría de Fotón
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Descriptor Portuguese:
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Absorciometria de Fóton
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Synonyms English:
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Absorptiometry, X-Ray
Dual-Photon Absorptiometry
Photodensitometry, X-Ray
Photon Absorptiometry
Single-Photon Absorptiometry
X-Ray Absorptiometry
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Tree Number:
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E01.370.350.700.024
E05.196.712.224.187
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Definition English:
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A noninvasive method for assessing BODY COMPOSITION. It is based on the differential absorption of X-RAYS (or GAMMA RAYS) by different tissues such as bone, fat and other soft tissues. The source of (X-ray or gamma-ray) photon beam is generated either from radioisotopes such as GADOLINIUM 153, IODINE 125, or Americanium 241 which emit GAMMA RAYS in the appropriate range; or from an X-ray tube which produces X-RAYS in the desired range. It is primarily used for quantitating BONE MINERAL CONTENT, especially for the diagnosis of OSTEOPOROSIS, and also in measuring BONE MINERALIZATION. |
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History Note English:
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90; was see RADIONUCLIDE IMAGING 1985-1989; for DUAL-ENERGY RADIOGRAPHIC ABSORPTIOMETRY use DENSITOMETRY, X-RAY
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Allowable Qualifiers English:
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Record Number:
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24502
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Unique Identifier:
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D015502
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Occurrence in VHL:
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Similar:
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DeCS CID-10 SciELO LILACS LIS
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