中国人三维数字化肝脏模型系统的建立

Reconstruction of 3D digital human liver of Chinese

目的 建立中国人的可视化三维虚拟肝脏系统,为临床诊断、治疗提供决策依据,为肝外科虚拟手术的发展提供可视化平台.方法 选取中国可视化人的腹部断层图像资料,开发三维可视化软件,对肝脏重要结构进行精确分割,联合运用表面重建与体积重建的方法,建立数字肝脏模型系统,并赋予该系统多种交互功能.结果 三维数字肝脏模型系统成功建立.该系统具有任意移动、旋转、缩放、切割和多种显示等功能;具备多种测量功能;具备一定的虚拟手术功能.重建效果准确、逼真.结论 三维肝脏系统能真实展示肝内、外重要结构的解剖特征,功能全面,操作简便.它的建立为临床诊疗提供了有效的参照系统,为肝外科虚拟手术的发展提供了平台.

Objective To establish a 3D digitized visual model of the liver to provide anatomical structure for planning hepatic operations and creating accurate computer simulations of the liver.Methods Transverse sections of abdomen were chosen from the Chinese Visible Human dataset. The liver was reconstructed in three dimensions with surface rendering in combination with volume rendering reconstruction. Results Accurately segmented images of the main structures of liver were completed. The reconstructed structures could be displayed singly, in small groups or as a whole and could be continuously rotated in 3D space at different velocities. Conclusion The reconstructed liver is realistic and demonstrates the natural shape and exact position of hepatic structures. It provides an accurate model for the automated segmentation algorithmic study and a digitized anatomical model of the liver.