Comparison of an imaging heel quantitative ultrasound device (DTU-one) with densitometric and ultrasonic measurements.

Détails

ID Serval
serval:BIB_8239885E63DA
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Comparison of an imaging heel quantitative ultrasound device (DTU-one) with densitometric and ultrasonic measurements.
Périodique
British Journal of Radiology
Auteur(s)
Diessel E., Fuerst T., Njeh C.F., Hans D., Cheng S., Genant H.K.
ISSN
0007-1285
Statut éditorial
Publié
Date de publication
2000
Peer-reviewed
Oui
Volume
73
Numéro
865
Pages
23-30
Langue
anglais
Notes
Publication types: Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
Résumé
The purpose of this study was to evaluate a new imaging ultrasound scanner for the heel, the DTU-one (Osteometer MediTech, Denmark), by comparing quantitative ultrasound (QUS) results with bone mineral density (BMD) of the heel and femur from dual X-ray absorptiometry (DXA), and by comparing the DTU-one with another QUS device, the UBA 575+. The regions of interest in the DXA heel scan were matched with the regions evaluated by the two QUS devices. 134 healthy and 16 osteoporotic women aged 30-84 years old were enrolled in the study. In vivo short-term precision of the DTU-one for broadband ultrasound attenuation (BUA) and speed of sound (SOS) was 2.9% and 0.1%, respectively, and long-term precision was 3.8% and 0.2%, respectively. Highest correlations (r) between QUS and BMD measurements were achieved when comparing DTU-one results with BMD in matched regions of the DXA heel scan. Correlation coefficients (r) were 0.81 for BUA and SOS. Highest correlations with the UBA 575+ were 0.68 and 0.72, respectively. The comparison of BMD in different femoral sites with BUA and SOS (DTU-one) varied from 0.62 to 0.69 when including the entire study population. The correlation between BMD values within different sites of the femur tended to be higher (from r = 0.81 to 0.93). When comparing BUA with BUA and SOS with SOS on the two QUS devices, the absolute QUS values differed significantly. However, correlations were relatively high, with 0.76 for BUA and 0.82 for SOS. In conclusion, the results of the new quantitative ultrasound device, the DTU-one, are highly correlated (r = 0.8) with results obtained using the UBA 575+ and with BMD in the heel. The precision of the DTU-one is comparable to other QUS devices for BUA and is high for SOS.
Mots-clé
Absorptiometry, Photon, Adult, Aged, Aged, 80 and over, Evaluation Studies as Topic, Female, Heel, Humans, Middle Aged, Osteoporosis, Postmenopausal, Sensitivity and Specificity, Ultrasonography
Pubmed
Web of science
Création de la notice
02/03/2009 13:33
Dernière modification de la notice
03/03/2018 18:49
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