猪肺支气管树三维可视化模型的构建及意义

摘要

目的：探讨构建猪肺支气管树三维可视化模型的方法及意义。方法采用改良环氧树脂混合液-氧化铅填充剂对新鲜完整猪肺标本进行灌注并铸型，并在铸型基础上行CT扫描获取原始二维断层图像数据集，利用Mimics 15.0软件构建猪肺支气管树三维可视化模型。结果构建猪肺支气管树三维可视化模型的三维效果逼真，不但清晰地显示肺支气管树的各叶分支走行及分布，而且可以在三维空间内任意缩放、平移及以任意轴为中心行任意角度旋转。此外，还可以对各叶支气管管径和距离进行测量。结论基于CT数据集，利用三维重建技术构建猪肺支气管树三维可视化模型，为解剖学教学提供形态学参考和后期的虚拟手术奠定基础。%Objective To explore the method and significance for constructing three-dimensional visual model in bronchial tree of pig lung. Methods A set of pig lung specimen was infused with epoxy resin-lead oxide through the trachea,and then casted. The Mimics 15. 0 was used to construct three-dimensional visual model in bronchial tree of pig lung by utilizing CT data of the cast specimen. Results In the reconstructed three-dimensional visual model of bronchial tree,the three-dimensional effect was realistic. This model not only clearly showed each lobar direction and distribution of bronchial tree,but also allowed three-dimensional arbitrary scaling,shifting or rotating at any angle, and the diameter and distance of each lobar bronchus could be measured with the sofeware. Conclusion The three-dimensional visual model in bronchial tree of pig lung can be successfully reconstructed from the CT dataset by using related sofeware like Mimics,which can bring morphological reference to anatomical teaching and will be helpful to the development of virtual operation.