A new method for quantitative ultrasound measurements at multiple skeletal sites: first results of precision and fracture discrimination.

Détails

ID Serval
serval:BIB_952363CEF65D
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
A new method for quantitative ultrasound measurements at multiple skeletal sites: first results of precision and fracture discrimination.
Périodique
Journal of Clinical Densitometry
Auteur(s)
Barkmann R., Kantorovich E., Singal C., Hans D., Genant H.K., Heller M., Glüer C.C.
ISSN
1094-6950
Statut éditorial
Publié
Date de publication
2000
Peer-reviewed
Oui
Volume
3
Numéro
1
Pages
1-7
Langue
anglais
Notes
Publication types: Comparative Study ; Journal Article
Résumé
We investigated a new multisite quantitative ultrasound device that measures the acoustic velocity in axial transmission mode along the cortex. Using a prototype of the Omnisense (Sunlight Ultrasound Technologies, Rehovot, Israel), we tested the performance of this instrument at four sites of the skeleton: radius, ulna, metacarpal, and phalanx. Intraobserver (interobserver) precision errors ranged from 0.2% to 0.3% (0.3% to 0.7%) for triplicate measurements with repositioning. Fracture discrimination was tested by comparing a group of 34 women who had previously suffered a fracture of the hip, spine, ankle, or forearm to a group of 28 healthy women who had not suffered a fracture. Age-adjusted standardized odds ratios ranged from 1.6 to 4.5. Except for the ulna the sites showed a significant fracture discrimination (p < 0.01). The areas under the receiver operating curves (ROC) curves were from 0.88 to 0.89 for radius, metacarpal, and phalanx. A combination of the results from the three sites showed a significant increase of the ROC area to 0.95 (p < 0. 05). Our results show promising performance of this new device. The ability to measure a large variety of sites and the potential to combine these measurements are promising with regard to optimizing fracture risk assessment.
Mots-clé
Aged, Bone and Bones, Evaluation Studies as Topic, Female, Fractures, Bone, Humans, Logistic Models, Observer Variation, Osteoporosis, Pilot Projects, ROC Curve, Ultrasonography
Pubmed
Web of science
Création de la notice
02/03/2009 13:33
Dernière modification de la notice
03/03/2018 19:39
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