Consulta: subjectFacets:"Quantitative computed tomography"
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Data/hora: 05/06/2024 14:47:44

Experimental investigation of bone mineral density in Thoroughbreds using quantitative computed tomography
Provedor de dados: 19
Autores: YAMADA, Kazutaka; SATO, Fumio; HIGUCHI, Tohru; NISHIHARA, Kaori; KAYANO, Mitsunori; SASAKI, Naoki; NAMBO, Yasuo.
Bone mineral density (BMD) is one of the indications of the strength and health. BMD measured by quantitative computed tomography (QCT) was compared with that measured by dual energy X-ray absorptiometry (DXA) and radiographic bone aluminum equivalence (RBAE). Limbs were removed from horses that had been euthanized for reasons not associated with this study. Sixteen limbs (left and right metacarpals and metatarsals) from 4 horses were used to compare BMD as measured by QCT with those measured by DXA and RBAE. There was a strong correlation between BMD values measured by QCT and those measured by DXA (R2=0.85); correlation was also observed between values obtained by QCT and those obtained by RBAE (R2=0.61). To investigate changes in BMD with age, 37 right...
Palavras-chave: Bone mineral density; Dual energy X-ray absorptiometry; Quantitative computed tomography; Radiographic bone aluminum equivalence; Thoroughbred.
Ano: 2015
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4182

Experimental assessment of bone mineral density using quantitative computed tomography in Holstein dairy cows
Provedor de dados: 19
Autores: MAETANI, Ayami; ITOH, Megumi; NISHIHARA, Kahori; AOKI, Takahiro; OHTANI, Masayuki; SHIBANO, Kenichi; KAYANO, Mitsunori; YAMADA, Kazutaka; 伊藤, めぐみ; 滄木, 孝弘; 芝野, 健一; 茅野, 光範; 山田, 一孝.
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&lt;0.01), and a significant correlation was found between QCT and RA measurements (r=0.50, P&lt;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.
Palavras-chave: Bone mineral density; Dairy cow; Dual-energy X-ray absorptiometry; Quantitative computed tomography; Radiographic absorptiometry.
Ano: 2016
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4321

Utilização da tomografia computadorizada quantitativa como teste de resistência para avaliação de placas ósseas
Provedor de dados: 45
Autores: Melo Filho,E.V.; Costa,L.A.V.S.; Freitas,P.M.C; Oliveira,D.C; Teixeira,M.W.; Costa,F.S.
Quantitative computed tomography was used to determine the radiodensity of bony plates. The CT scans provided information regarding radiodensity of bony plates and allowed to verify the uniformity of bone mineral density in their scope. The proposed methodology should be considered as another tool for determining the resistance of these biomaterials.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Quantitative computed tomography; Biomaterials; Bony plates; Radiodensity; Tomografia computadorizada quantitativa; Biomateriais; Placas ósseas; Radiodensidade.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000300033