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ARUP; ISBN: 978-0-9562121-5-3 - CMBBE 2012 - Cardiff University

ARUP; ISBN: 978-0-9562121-5-3 - CMBBE 2012 - Cardiff University

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4. PARALELLIZATION OF THE MESH GENERATION PROCEDURE<br />

In case of bone the input information concerning the tissue geometry is based on<br />

medical imaging. It means, that the object is described by collection of 2-dimensional<br />

subsequent images. In addition, the remodeling scenario assumes the SED discussion on<br />

the surface of the structure. So the mesh generator must to recognize the surface of the<br />

structure.<br />

Fig. 1. Cosmoprojector - the detailed scheme of the mesh generation procedure during<br />

the remodeling simulation.<br />

For these reasons the own mesh generator called Cosmoprojector has been developed.<br />

Digital images e.g. Computer Tomography of tissue slices are directly used for the<br />

building of the 3-dimensional finite element mesh. The 2 dimensional image is first<br />

translated into the bitmap, where '0' represents void and '1' the tissue. On the bitmap the<br />

initial step of discretization is executed. The aim of this first step is to describe the areas<br />

with tissue. The discretization procedure produces a 2 dimensional network of<br />

tetragonal elements, according to the tissue image shape. The discretized 2 dimensional

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