真实心脏模型上兴奋时序图仿真数据的可视化

L FX虚拟心脏模型采用具有真实几何形状的三维心脏、躯体模型进行仿真研究 ,但在仿真输出结果上基本上以二维的形式给出。针对这一问题 ,提出了一种体元映射算法 ,将 L FX虚拟心脏模型的关键仿真数据之一兴奋时序图 (EIM)从真实几何形状的心脏模型映射到真实人体心脏模型 ,并在 4 DView三维医学图像实时可视化平台上对映射前后的 EIM仿真数据进行了三维可视化 ,从而将 L FX虚拟心脏模型的 EIM仿真数据的输出从二维拓展到了四维、从真实几何形状的心脏模型拓展到了真实人体的心脏模型。映射前后 EIM仿真数据的可视化结果表明 L FX虚拟心脏模型具有了更为直观有效的仿真特性 ,更为接近真实的人体心脏

Visualization of EIM Simulation Data on Real Cardiac Model

Although 3D heart and torso model with realistic geometry are the basis of simulation computation in LFX Virtual Cardiac Model, the simulation results are mostly output in 2D format. Voxel mapping method is presented to solve this problem and extend the function of LFX Virtual Cardiac Model. Excitation Isochrone Map (EIM), one of the most important simulation results, was mapped from cardiac model with realistic geometry to real Visible Man cardiac model, then the EIM simulation data before and after mapping were visualized in the 4DView which is a real-time 3D medical image visualization platform. With this method, the output format of EIM simulation data of LFX Virtual Cardiac Model was extended from 2D to 4D (time is the 4 th dimension) and from cardiac model with realistic geometry to real cardiac model. According to the EIM simulation data visualization results before and after mapping, the LFX virtual cardiac model shows its characteristics with more realistic and effective simulation.