首页> 外国专利> METHOD FOR THE REPRESENTATION OF THREE-DIMENSIONAL FLOW DATA AND WALL LOADINGS IN FLUID-CHANNELING VESSELS, IN PARTICULAR, BLOOD VESSELS USING THE LATTICE-BOLTZMANN METHOD

METHOD FOR THE REPRESENTATION OF THREE-DIMENSIONAL FLOW DATA AND WALL LOADINGS IN FLUID-CHANNELING VESSELS, IN PARTICULAR, BLOOD VESSELS USING THE LATTICE-BOLTZMANN METHOD

机译:格-博尔兹曼法表示流体交换容器,尤其是血管中三维流数据和壁面载荷的方法

摘要

Three-dimensional (3D) grey-value data from MRT or CT (X-ray tomography) are binary segmented with versions of suitable algorithms for medicinal and general imagery. 3D vessel shapes produced are used for a resolved numeric simulation of flow in cubic calculated grids with lattice-Boltzmann flow resolution. The required boundary conditions are taken from data banks or individual non-invasive measurements. When wall dynamics are important these are also simulated. Implants, vasal grafts extant plaques etc. are identified in patients and included in the simulation geometry. In addition virtual geometry changes (not yet present in patients), for example, implants for introduction, vessel parts of removal etc. are also included in the geometry description for calculation, in order to permit a prior precise estimation of the effects thereof for the medical planning of the relevant operative procedures. Implants, the fine structure of which cannot be resolved on the calculated grid, are modelled as elastic porous bodies.
机译:来自MRT或CT(X射线断层扫描)的三维(3D)灰度值数据用适用于医学和普通图像的合适算法版本进行了二进制分割。产生的3D容器形状用于对具有格-玻尔兹曼流分辨率的立方计算网格中的流进行解析的数值模拟。所需的边界条件来自数据库或单独的非侵入式测量。当墙体动力学很重要时,也可以对它们进行模拟。在患者中可以识别出植入物,血管移植物的现存斑块等,并将其包括在模拟几何体中。另外,虚拟几何形状变化(患者尚不存在),例如,用于引入的植入物,切除的血管部分等也包括在几何形状描述中以进行计算,以允许对其作用的事先精确估计。医疗计划的相关手术程序。无法在计算的网格上解析其精细结构的植入物被建模为弹性多孔体。

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