Abstract
Broadband ultrasound attenuation (BUA) was investigated as an inexpensive, simple and radiation-free method of screening for low perimenopausal bone density. A total of 587 women (50–54 years), invited for screening had bone mineral density (BMD) measured at the femoral neck and the lumbar spine by dual-energy X-ray absorptiometry (DXA). At the same visit the BUA of the calcaneus was measured. The correlation between BUA and BMD was approximately 0.4 compared with 0.67 between femoral neck and spinal BMD. Receiver operating characteristic (ROC) curve analysis demonstrated BUA to have the same ability for discriminating between low BMD at either the femoral neck or lumbar spine. BUA with a cut-off for normality at the median (BUA=80) had a sensitivity of 68% and specificity of 67% for low bone density identified by a BMD less than the 25th centile at the femoral neck or lumbar spine. The correlation between BUA and BMD was insufficient to allow identification of the same groups as having low bone density.
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Young, H., Howey, S. & Purdie, D.W. Broadband ultrasound attentuation compared with dual-energy X-ray absorptiometry in screening for postmenopausal low bone density. Osteoporosis Int 3, 160–164 (1993). https://doi.org/10.1007/BF01623278
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DOI: https://doi.org/10.1007/BF01623278