摘要
目的:利用计算机辅助肝脏CT影像解读分析系统对肝内门静脉和肝静脉进行三维解读分析,观察分析门静脉和肝静脉解剖和变异。方法:收集200例行上腹部64-MSCT增强扫描并排除存在可能改变血管解剖结构的病理状态检查者。利用IQQA-Liver肝脏CT解读软件对门静脉和肝静脉进行三维定量分析、显示及分支标记,并对其解剖和变异进行分析。结果 :IQQA-Liver分割及标记门静脉和肝静脉耗时短,且个体化门静脉和肝静脉3D定量模型形态逼真,立体感强,真实反映了门静脉和肝静脉的解剖结构和变异。正常门静脉解剖71.5%(143/200),解剖变异28.5%(57/200)。148例(74%)肝中、肝左静脉合并汇入下腔静脉。大于3 mm右后下肝静脉的显示率为36.5%(73/200)。大于5 mm的引流SⅧ段至中肝静脉的属支静脉的显示率为30%(60/200)。结论:肝内门静脉和肝静脉变异并不少见。IQQA-Liver三维定量分析及显示可真实反映门静脉和肝静脉的形态结构,为肝脏的虚拟手术设计提供了可实时交互的血管解剖变异各种3D模型,为上腹部脏器介入插管治疗提供了活体解剖学数据。
Objective： To investigate 3D interpretation and analyse the data of anatomical variation of hepatic vessels using enhanced CT on 64-MSCT.Methods： 200 cases performed on 64-MSCT were examined.3D display and marking of the hepatic vessels and branches were performed using IQQA-Liver software.The anatomic variation was evaluated.Results： The adopted method of vessel segmentation,marking and analysis was time-efficient,and resulted in individualized real-time interactive 3D vascular models representing true structures verified on original 2D DICOM images.Normal type of portal vein accounted for 71.5%（143/200）,and the variants 28.5%（57/200）.The left hepatic vein shared a common trunk with the middle one in 148 subjects（74%）.Visualization rate of right inferior hepatic vein with diameter larger than 3 mm was 36.5%（73/200）.The presence rate of a significant segment Ⅷ vein（5 mm） draining to MHV was 30%（60/200）.Conclusion： Variation of the hepatic vessels is not rare.The individualized 3D vascular models from CT data analysis in this study represented the anatomic variations of hepatic vessels well,and provided sufficient real-time interaction to various types of anatomical variations for surgery and interventional planning.
出处
《中国临床医学影像杂志》
CAS
2013年第5期338-340,356,共4页
Journal of China Clinic Medical Imaging
