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Comparison of questionnaire and quantitative ultrasound techniques as screening tools for DXA

Comparison of questionnaire and quantitative ultrasound techniques as screening tools for DXA
Comparison of questionnaire and quantitative ultrasound techniques as screening tools for DXA
The aim of the study is to assess the sensitivity and specificity of different techniques and their ability to act as screening tools in relation to dual energy X-ray absorptiometry (DXA) in a group of 208 postmenopausal women. In this study we examined eight screening systems for the diagnosis of osteoporosis, the osteoporosis self-assessment tool (OST), the osteoporosis risk assessment instrument (ORAI), the osteoporosis index of risk (OSIRIS), a risk index derived using data from the study of osteoporotic fractures (SOFSURF), the simple calculated osteoporosis risk estimation (SCORE), patient body weight (pBW), along with two ultrasound based systems, the Sunlight Omnisense (Sunlight Medical, Rehovot, Israel) and the CUBA Clinical (McCue plc, Winchester, UK). The sensitivity and specificity of the different techniques in relation to DXA were plotted as receiver-operating characteristic (ROC) curves at three different levels (DXA T-score -2.5 osteoporosis, -2 and -1 osteopenia). The areas under the curves (AUC) were calculated and showed broadband ultrasound attenuation (BUA) at the calcaneus to provide consistently the highest AUC (0.77-0.81). The velocity of sound (VOS) of the calcaneus (AUC=0.72-0.76) was equally good, but was out-performed by some of the questionnaire systems (AUC=0.66-0.79). Both the questionnaire systems and the CUBA Clinical out-perform the Sunlight Omnisense (AUC=0.58-0.7), which showed comparable performance with body weight (AUC=0.66-0.69). The results show that QUS is capable of selecting patients with low bone density as measured by DXA. A patient displaying a low QUS value should be followed up with a DXA scan to confirm the diagnosis
0937-941X
1565-1575
Cook, R.B.
06f8322d-81be-4f82-9326-19e55541c78f
Collins, D.
2b66fd7b-6461-4290-87b0-54fe8fe7e4b6
Tucker, J.
124febb6-dc7f-4dab-b425-ff3e85c81593
Zioupos, P.
11b6158a-2969-43b4-b19b-a01b00ee65fa
Cook, R.B.
06f8322d-81be-4f82-9326-19e55541c78f
Collins, D.
2b66fd7b-6461-4290-87b0-54fe8fe7e4b6
Tucker, J.
124febb6-dc7f-4dab-b425-ff3e85c81593
Zioupos, P.
11b6158a-2969-43b4-b19b-a01b00ee65fa

Cook, R.B., Collins, D., Tucker, J. and Zioupos, P. (2005) Comparison of questionnaire and quantitative ultrasound techniques as screening tools for DXA. Osteoporosis International, 16 (12), 1565-1575. (doi:10.1007/s00198-005-1864-x). (PMID:15883661)

Record type: Article

Abstract

The aim of the study is to assess the sensitivity and specificity of different techniques and their ability to act as screening tools in relation to dual energy X-ray absorptiometry (DXA) in a group of 208 postmenopausal women. In this study we examined eight screening systems for the diagnosis of osteoporosis, the osteoporosis self-assessment tool (OST), the osteoporosis risk assessment instrument (ORAI), the osteoporosis index of risk (OSIRIS), a risk index derived using data from the study of osteoporotic fractures (SOFSURF), the simple calculated osteoporosis risk estimation (SCORE), patient body weight (pBW), along with two ultrasound based systems, the Sunlight Omnisense (Sunlight Medical, Rehovot, Israel) and the CUBA Clinical (McCue plc, Winchester, UK). The sensitivity and specificity of the different techniques in relation to DXA were plotted as receiver-operating characteristic (ROC) curves at three different levels (DXA T-score -2.5 osteoporosis, -2 and -1 osteopenia). The areas under the curves (AUC) were calculated and showed broadband ultrasound attenuation (BUA) at the calcaneus to provide consistently the highest AUC (0.77-0.81). The velocity of sound (VOS) of the calcaneus (AUC=0.72-0.76) was equally good, but was out-performed by some of the questionnaire systems (AUC=0.66-0.79). Both the questionnaire systems and the CUBA Clinical out-perform the Sunlight Omnisense (AUC=0.58-0.7), which showed comparable performance with body weight (AUC=0.66-0.69). The results show that QUS is capable of selecting patients with low bone density as measured by DXA. A patient displaying a low QUS value should be followed up with a DXA scan to confirm the diagnosis

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Published date: December 2005
Organisations: nCATS Group

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Local EPrints ID: 158613
URI: http://eprints.soton.ac.uk/id/eprint/158613
ISSN: 0937-941X
PURE UUID: c53af2c9-2f5a-4830-906b-15c5756fae08

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Date deposited: 15 Apr 2013 13:53
Last modified: 16 Jul 2019 23:55

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