Evaluation of local alterations in femoral bone mineral density measured via quantitative CT

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Tytuł:: Evaluation of local alterations in femoral bone mineral density measured via quantitative CT
Autorzy:: Sitzer A.
Aulmann L.
Wendlandt R.
Handels H.
Weyers I.
Schulz A. P.
Buzug T. M.
Temat:: bone mineral density
quantitative computed tomography
elasticity-density relationships
femur
Medicine
Źródło:: Current Directions in Biomedical Engineering, Vol 1, Iss 1, Pp 327-330 (2015)
Wydawca:: De Gruyter, 2015.
Rok publikacji:: 2015
Kolekcja:: LCC:Medicine
Typ dokumentu:: article
Opis pliku:: electronic resource
Język:: English
ISSN:: 2364-5504
Relacje:: http://www.degruyter.com/view/j/cdbme.2015.1.issue-1/cdbme-2015-0081/cdbme-2015-0081.xml?format=INT; https://doaj.org/toc/2364-5504
DOI:: 10.1515/cdbme-2015-0081
Dostęp URL:: https://doaj.org/article/cff7ec61fd1e49cd9089dec1bdbdd055 Link otwiera się w nowym oknie
Numer akcesji:: edsdoj.ff7ec61fd1e49cd9089dec1bdbdd055
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The aim of this study was to investigate the accuracy of bone mineral density (BMD) determined by quantitative computed tomography (qCT) based on in situ and ex situ scans of cadavers of variable stature. The influence of surrounding tissue on the quantification of CT images of ex situ scanned femora was investigated in air and in water and compared with the in situ scanned femora. The study showed that the surrounding tissue has an impact on the grey value-based representation of the scanned object as well as on the calibration of BMD, influencing the determination of BMD. Local differences in BMD of up to 17.5% were observed, which might originate from beam hardening artifacts.

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