Experimental assessment of bone mineral density using quantitative computed          tomography in holstein dairy cows

Ayami MAETANI; Megumi ITOH; Kahori NISHIHARA; Takahiro AOKI; Masayuki OHTANI; Kenichi SHIBANO; Mitsunori KAYANO; Kazutaka YAMADA

doi:10.1292/jvms.15-0642

Surgery

Experimental assessment of bone mineral density using quantitative computed tomography in holstein dairy cows

Ayami MAETANI, Megumi ITOH, Kahori NISHIHARA, Takahiro AOKI, Masayuki OHTANI, Kenichi SHIBANO, Mitsunori KAYANO, Kazutaka YAMADA

Author information

Ayami MAETANI
Nippon Beet Sugar Manufacturing Co., Ltd., Obihiro, Hokkaido 080–0831, Japan
Megumi ITOH
Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080–8555, Japan
Kahori NISHIHARA
Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080–8555, Japan
Takahiro AOKI
Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080–8555, Japan
Masayuki OHTANI
Nippon Beet Sugar Manufacturing Co., Ltd., Obihiro, Hokkaido 080–0831, Japan
Kenichi SHIBANO
Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080–8555, Japan
Mitsunori KAYANO
Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080–8555, Japan
Kazutaka YAMADA
Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080–8555, Japan

Keywords: bone mineral density, dairy cow, dual-energy X-ray absorptiometry, quantitative computed tomography, radiographic absorptiometry

JOURNAL FREE ACCESS

2016 Volume 78 Issue 7 Pages 1209-1211

DOI https://doi.org/10.1292/jvms.15-0642

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Abstract

The aim of this study was to assess the measurement of bone mineral density (BMD) by quantitative computed tomography (QCT), comparing the relationships of BMD between QCT and dual-energy X-ray absorptiometry (DXA) and between QCT and radiographic absorptiometry (RA) in the metacarpal bone of Holstein dairy cows (n=27). A significant positive correlation was found between QCT and DXA measurements (r=0.70, P<0.01), and a significant correlation was found between QCT and RA measurements (r=0.50, P<0.01). We conclude that QCT provides quantitative evaluation of BMD in dairy cows, because BMD measured by QCT showed positive correlations with BMD measured by the two conventional methods: DXA and RA.

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