Computer aided diagnostic of risky state in human pelvic bone

• Autorzy: John A. , Wysota P.
• Języki publikacji: EN

Abstrakty

EN

Purpose: of this paper is to raise the issue of recognition of dangerous states in human pelvic bone. These states can lead to damages of bone. Design/methodology/approach: consist of using the images from quantitative computed tomography (QCT). On the base of obtained data the numerical model of pelvic bone was created. Very important stage it was determination the values of material parameters. In the paper two methods were described. The first method directly basis on the data from radiology. In regard to difficulties with tomography data the second method was applied - the numerical simulations. The computer program was developed to obtain distribution of material parameters in numerical model of pelvic bone on the base of decreasing of bone mass. Findings: of the paper is that when decreasing of bone mass occurs in whole bone the stresses grow up continuously at the time. When decreasing of bone mass appears in individual region only the stresses decrease at the beginning and next increase while the bone mass still decrease. It could be one of the reason of lack of the symptoms in primary stage of osteoporosis. Research limitations/implications: are connected with accessibility of data from QCT. During QCT the bone system as well as density phantom are X-rayed simultaneously. On the base of standard density coming from the phantom the calibration curve is drown. Practical implications: it is the proposed procedure which facilitate the detection of risky state in pelvic bone. Originality/value: of researches consist in complex approach to problem of osteoporosis in human pelvic bone and applying the numerical simulations to create the numerical model of pelvic bone with osteoporotical changes.

Słowa kluczowe

EN

risky state; pelvic bone; material parameters; numerical simulation; osteoporosis

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2011
• Tom: Vol. 49, nr 2
• Strony: 313--322
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

John A.

• Faculty of Mechanical Engineering, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

autor

Wysota P.

• Faculty of Mechanical Engineering, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

Bibliografia

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• [6] A. John, P. Wysota, Computer system to aid diagnosis of osteoporotical changes on the base of QCT data, Proceedings of the International Conference “Computational Modeling and Advanced Simulations”, Bratysława, 2009, 51-60.
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• [14] W.R. Webb, W.E. Brant, N.M. Major, Fundamentals of body CT, Elsevier Urban & Partner, Wroclaw, 2007 (in Polish).