基于CT图像的人体肝脏血管系统三维可视化的实现 The Realization of Three Dimensional Visualization of Human Liver’s Vascular Systems Based on CT Scan Images

目的：建立肝内动静脉血管的三维可视化数字模型。方法：以Visual C++为数据处理工具，对肝脏CT扫描的动态图像进行图像预处理，提取感兴趣区；采用三维面绘制技术重建感兴趣区。结果：建立了较精确且完整的肝内动脉与静脉系统，实现了三维交互式浏览应用。结论：肝脏动静脉管系统可视化模型能准确反应肝脏内部血管系统的解剖结构与空间毗邻关系，不但可以为临床诊断提供可靠的影像解剖资料，还可以为虚拟手术提供重要的指导。 Objective: To build three dimensional digitized visible models of the liver’s vascular systems. Methods: The Visual C++ software was used to preprocess the CT images to extract the region of interest (ROI). A kind of 3D surface rendering technology was used to visualize the ROI. Results: The accurate and integrated hepatic artery, portal vein, and hepatic vein were reconstructed. Three- dimensional interactive browsing was achieved. Conclusion: These visible liver’s vascular systems models show precisely complex anatomy structure and spatial relationship, which not only offer clinic diagnosis reliable anatomical data sets, but provide a good guide for virtual surgery.