肝及肝内管道主支可视化研究

目的　建立中国人体肝脏及依据肝内格利森 (Glisson)系统第三级分支所划分的肝段数字化可视模型 ,为肝脏疾病的影像学诊断及肝段外科手术方案选择提供形态学依据。方法　采用我所建立的数字化可视人体数据集肝脏部位连续图像 ,观察其二维形态结构 ,并运用体数据绘制及表面绘制的重建方法 ,分别在IntelPentium 4处理器计算机和SGI工作站上对肝脏、胆囊外形及肝内管道系统主支结构进行计算机三维重建和立体显示。结果　肝脏及肝内管道数字化可视模型能够清晰显示肝脏形态结构、位置毗邻关系 ,以及肝内管道系统主支的分布特点和相互间的三维空间解剖结构关系 ,并可对三维重建模型进行任意经线和角度的适时三维测量。结论　数字化可视人体数据集能够较好地提供完整而精确的解剖学断面数据 ,肝内管道系统的三维重建可视化模型准确反映出该肝脏区域复杂的解剖学结构特点及其管道间的空间毗邻关系 ,可为肝脏疾病的影像学诊断和外科手术学治疗方案的选择提供形态学依据。

Visualization of the intrahepatic vessels of the chinese visible human

Objective To build digitized visible model of the liver and intrahepatic vessels of the Chinese visible human, providing morphological data for image diagnosis and liver surgery planning. Methods Cross sectional images of fresh tissues from the Chinese visible human dataset and the visible liver dataset were reviewed and the structures of the liver and intrahepatic vessels were confirmed on a section by section basis. Three dimensional computer reconstructions of the liver and intrahepatic vessels were generated from these data by volume rendering56mm and surface rendering on a SGI workstation and a Intel Pentium 4 personal computer. Results The quality of the computerized 3D reconstructed images was distinct and perfect. The liver and gallbladder, the intrahepatic vessels and adjacent structures were all reconstructed and displayed jointly. All reconstructed structures can be represented individually or jointly; any diameter and angle of the structures reconstructed could be measured conveniently. Conclusions The Chinese visible human dataset and the visible liver dataset can provide complete and accurate data. The digitized model of the liver and intrahepatic vessels offer unique insights into the complex hepatic anatomy, providing morphological data for image diagnosis and surgery liver surgery planning.