Sodium bromide acts as a contrast material on DEXA scanning.
Subjects undergoing a series of procedures to determine body composition, including dual-energy x-ray absorptiometry (DEXA) scanning and extracellular water volume determination by bromide dilution, demonstrated abnormal DEXA scans in some cases. Oral doses of sodium bromide in the stomach were detected on total body DEXA scanning as contrast material. The physical principles that cause bromide to be imaged in a manner similar to calcium by the DEXA scanner are discussed so that other investigators may be aware of this potential pitfall in body composition analysis.
Chaisson
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TG
Internal Medicine Residency Training Program, LSU Unit, Earl K. Long Medical Center, Baton Rouge.
Ryan
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DH
D015502:Absorptiometry, Photon / Q000379:methods*; D001965:Bromides; D003287:Contrast Media; D006801:Humans; D017670:Sodium Compounds
D001965:Bromides; D003287:Contrast Media; D017670:Sodium Compounds; C027938:sodium bromide