Article (Scientific journals)
Third metacarpal bone mineral density assessment in the standing horse by dual X-ray absorptiometry - Suitability, precision and accuracy
Donabedian, M.; Delguste, Catherine; Perona, G. et al.
2005In Veterinary and Comparative Orthopaedics and Traumatology, 18 (1), p. 26-30
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Keywords :
DXA; accuracy; precision; horse; in-vivo
Abstract :
[en] Bone mineral density (BMD) is correlated to mechanical properties of bone. In the horse, dual energy X-ray absorptiometry (DXA) has yet only been performed ex-vivo, but a new portable DXA device would be ideal for in-vivo BMD measurement. We explored field suitability, precision and accuracy of this device for in-vivo third metacarpal density assessment. Precision was analysed by calculating measurement variation under repeated measurement tests with (reproducibility) and without (repeatability) limb repositioning. Repeatability and reproducibility were tested ex-vivo, at the some time that intra- and inter-operator reproducibility were assessed in-vivo. In order to test accuracy, bone mineral content (BMC) of several bone samples determined by DXA and ashing were compared. Repeatability was 1.47% and reproducibility 1.69% ex-vivo. In-vivo reproducibility varied between 2.91 and 4.06% for intraoperator test and between 3.13 and 5.53% for interoperator test. BMC measured by DXA and ash weight were highly correlated (R-2 > 0.99). In conclusion, under described conditions this DXA device is usable, accurate and precise. Its sensitiveness reaches 8.23% in an individual longitudinal monitoring. Using the third metacarpal bone as an example, we have shown that this device is suitable for experimental or clinical monitoring.
Disciplines :
Veterinary medicine & animal health
Zoology
Author, co-author :
Donabedian, M.
Delguste, Catherine ;  Université de Liège - ULiège > Département de sciences fonctionnelles > Pharmacologie, pharmacothérapie et toxicologie
Perona, G.
Lebecque, P.
Duboeuf, F.
Lepage, O.
Martin-Rosset, W.
Language :
English
Title :
Third metacarpal bone mineral density assessment in the standing horse by dual X-ray absorptiometry - Suitability, precision and accuracy
Publication date :
2005
Journal title :
Veterinary and Comparative Orthopaedics and Traumatology
ISSN :
0932-0814
eISSN :
2567-6911
Publisher :
Schattauer Gmbh-Verlag Medizin Naturwissenschaften, Stuttgart, Germany
Volume :
18
Issue :
1
Pages :
26-30
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 20 June 2011

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