【摘要】目的:通过三维重建为肝门静脉的研究提供科学的手方法。方法:采用改良的羧甲基纤维素钠-明胶-氧化铅对肝门静脉进行灌注填充,16排螺旋CT下进行无间距连续薄层扫描,扫描层厚0.625mm,获得肝脏数据集,行三维重建。结果:灌注后的门静脉充盈良好,血管三维图像主干及大分支饱满清晰,边缘连续平滑,无齿状伪影;小血管显示三级以上,重建的门静脉模型边缘整齐,并可实现任意角度的空间旋转,整体显示完整清晰而准确。结论:采用门静脉羧甲基纤维素-明胶-氧化铅灌注,16排螺旋CT薄层扫描,能为门静脉的三维重建提供准确的数据集。

    【关键词】螺旋CT;肝门静脉;三维重建

    Hepatic Portal Vein Dataset Collected And 3d Reconstruction

    【Abstract】 Objective:To supply scientific method for research of hepatic portal vein through three-dimensional reconstruction.Mthods:The hepatic portal vein was perfused by modified carboxymethylcellulos sodium-gelatin - lead oxide, 16 row spacing is under the spiral CT scan continuous thin layer, 0.625 mm thick layer of scanning,obtain the liver data, And perform three dimensional imaging. Results:The hepatic portal vein infusion filled with good, blood vesselsas well their trunks and branches were clear,well-filled,smooth and continuous.There were no dentate shadow was found. Reconstruction of the portal vein model is neat and can be realized at any Angle and the rotating, whole space displays full clearly and accurately.Conclusions:It can supply accurate data for 3d reconstruction of hepatic portal vein,which is using carboxymethyl cellulose-gelatin-lead oxide infusion and then scan it with 16 rows spiral CT. ......