UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

X-ray dual-photon absorptiometry: a new method for the measurement of bone density.

Cullum, ID; Ell, PJ; Ryder, JP; (1989) X-ray dual-photon absorptiometry: a new method for the measurement of bone density. Br J Radiol , 62 (739) pp. 587-592. 10.1259/0007-1285-62-739-587.

Full text not available from this repository.

Abstract

A recently introduced method (dual-photon X-ray absorptiometry, DEXA) capable of measuring skeletal density in man (at present in the spine and hips, but ultimately for the whole body) has been evaluated in terms of its ability to perform long-term assessment of bone density changes. The method, which uses X rays rather than gamma rays as its photon source, represents a significant improvement over present systems both in image quality and precision (reproducibility) of results, which is better than 1% in vivo. Scanning time is approximately halved compared with present techniques and the radiation dose is reduced by 25%. First data on long-term drift of results and effects of changes in patient composition (i.e. thickness and fat content) are given and show the new method to be superior to present radionuclide systems. It is likely that this new method will become the standard for bone density measurements.

Type: Article
Title: X-ray dual-photon absorptiometry: a new method for the measurement of bone density.
Location: England
DOI: 10.1259/0007-1285-62-739-587
Keywords: Bone and Bones, Densitometry, Humans, Minerals, Radionuclide Imaging
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Medicine
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Medicine > Metabolism and Experi Therapeutics
URI: http://discovery.ucl.ac.uk/id/eprint/1487852
Downloads since deposit
0Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item