Discordance in diagnosis of osteoporosis using spine and hip bone densitometry.
Diagnostic discordance for osteoporosis is the observation that the T-score of a patient varies between skeletal sites, falling into 2 different diagnostic categories identified by the World Health Organization classification system. Densitometrists and clinicians should expect that at least 4 of every 10 patients tested by dual-energy X-ray absorptiometry (DXA) to demonstrate T-score discordance between spine and total hip measurement sites. T-score discordance can occur for a variety of reasons related to physiologic and pathologic patient factors and the performance or analysis of DXA itself.
El Maghraoui
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Rheumatology and Physical Rehabilitation Department, Military Hospital Mohammed V, Rabat, Morocco. aelmaghraoui@gmail.com
Mouinga Abayi
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Rkain
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Mounach
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D015502:Absorptiometry, Photon / Q000379:methods*; D015519:Bone Density; D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D006615:Hip / Q000000981:diagnostic imaging*; D006801:Humans; D010024:Osteoporosis / Q000000981:diagnostic imaging* / Q000453:epidemiology / Q000378:metabolism; D012307:Risk Factors; D012720:Severity of Illness Index; D013131:Spine / Q000000981:diagnostic imaging*