Use of quantitative ultrasound densitometry (QUS) in male osteoporosis

Bone densitometry is a key factor in the early diagnosis of osteoporotic bone disorders. Cut-off values for WHO classification for male osteoporosis and all densitometry techniques such as dual x-ray absorptiometry (DXA), quantitative ultrasound (QUS), and quantitative computed tomography (QCT) need to be developed. Hereby, QCT, DXA, and QUS are equivalent methods in the prospective assessment of fracture risk. Where men and women have similar BMD values, they also have similar fracture probability. QUS has several advantages compared to the radiological devices. The QUS systems, which are commercially available at present, are non-invasive methods, which are safe, simple, free of radiation, portable, and relatively inexpensive. QUS can be measured at the calcaneus and phalanges or with multi-site systems. Phalangeal ultrasound is especially useful as being easily accessible.