assessment of bone mineral density with dual energy x-ray absorptiometry in pre- and post-menopausal women

نویسندگان

m.r. salamat department of medical physics, isfahan university of medical sciences, isfahan, iran

n. rostampour department of medical physics, isfahan university of medical sciences, isfahan, iran

s. shanehsazzadeh department of medical physics, tehran university of medical sciences, tehran, iran

m.b. tavakoli department of medical physics, isfahan university of medical sciences, isfahan, iran

چکیده

background: osteoporosis is a chronic disease that contributes substantially to decrease physical activity and decline in the quality of life. osteoporosis can be diagnosed easily with the use of dual-energy x-ray absorptiometry (dxa) equipment. the aim of this study was to investigate the magnitude of bone loss on proximal femur and lumbar spine ls in pre- and post-menopausal women from isfahan osteoporosis diagnosis center (iodc) since 2005. materials and methods: bone mineral density (bmd) measurements using dxa have been performed at iodc. 185 pre-menopausal and 174 early post-menopausal women were selected randomly. a norland xr46 system was used for the investigations. the student t-test was done to find the difference between the t-scores of the femoral neck (fn) and lumbar spine (ls) in pre- and post-menopausal women. results: mean bmds for the fn and ls in pre-menopausal women were 0.859 ± 0.136 and 1.012 ± 0.161 and in post-menopausal women were 0.816 ± 0.119 and 0.919 ± 0.140, respectively. long-term bmd cvs of 1.0% and 1.2% for the ls and fn were found, respectively. the differences between the fn and ls for pre- and post-menopausal women were t = - 9.02, p < 0.05 and t = -3.50, p < 0.05, respectively. conclusion: in spite of, the reported lower bmd t-scores for the ls compared with the fn for women, we found that the fn had significantly lower t-score than ls for both pre- and post-menopausal women.

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عنوان ژورنال:
iranian journal of radiation research

جلد ۶، شماره ۲، صفحات ۱۰۳-۱۰۷

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