An analysis of the effect of impact loading on the destruction of vascular structures in the brain

• Autorzy: Ratajczyk M. , Sąsiadek M. , Będziński R.

Identyfikatory

DOI

10.5277/ABB-00552-2016-02

• Języki publikacji: EN

Abstrakty

EN

Subdural hematomas are one of the frequent complications of head injuries. Such hematomas result from exceeding the border strength values of bridging veins. Subdural haemorrhages are life-threatening and are a frequent cause of considerable pathologies. Traffic participants and also soldiers who participate in armed conflicts are the most vulnerable to head injuries. Although hematomas have been studied for many years the mechanism of hematoma formation has not been fully clarified as yet. In the paper, the effort of brain tissue structures due to the propagation of shock wave was analyzed. Particular attention was paid to the deformation ability and changes in the energy of bridging veins. This research was concerned with changes in mechanical properties of these veins in the frontal, parietal and occipital regions of the brain. For the present research the authors have constructed finite element models of brain tissue fragments and conducted numerical studies taking into account the boundary conditions arising from violent overloads that result from combat operations. As a result of the numerical analysis conducted, critical values of strain and stress have been obtained. The analysis showed high diversity in the properties of the different regions of the brain tissue. The studies carried out by the authors rendered it possible to assess the effort of the tissue structures of veins in connection with mechanical parameters, including geometrical parameters, in particular in relation to the likelihood of hematoma formation.

Słowa kluczowe

EN

bridging vein rupture; subdural haematoma; biomechanical properties; cerebrovascular system; FEM; impact loading; dynamic model

PL

mózg; system naczyyniowo-mózgowy; właściwości mechaniczne; FEM; model dynamiczny

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2016
• Tom: Vol. 18, no. 3
• Strony: 21--31
• Opis fizyczny: Bibliogr. 27 poz., rys., wykr.

Twórcy

autor

Ratajczyk M.

• University of Zielona Góra, Faculty of Mechanical Engineering, Zielona Góra, Poland
• University of Zielona Góra, Faculty of Computer, Electrical and Control Engineering, Zielona Góra, Poland

autor

Sąsiadek M.

• Wrocław Medical University, Department of Radiology, Wrocław, Poland

autor

Będziński R.

• University of Zielona Góra, Faculty of Mechanical Engineering, Zielona Góra, Poland

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.