【摘要】 目的探讨16排螺旋CT三维重建技术于肝动脉和肝门静脉血管成像的应用价值,比较3种三维重建方法的特点。方法100例肝癌患者,行16排螺旋CT肝双期增强扫描后,分别用SSD、VRT及MIP3种方法作三维重建,比较3种三维图像对肝动脉和肝门静脉血管成像的应用价值。结果SSD、MIP及VRT均可清楚显示肝动脉及门静脉4级以上分支,对于5级以下分支,MIP和VRT明显优于SSD;对于血管立体结构的显示,SSD和VRT无显著差异,而两者优于MIP。结论3种肝双期血管三维成像技术(SSD、MIP及VRT)各具优势,是快捷、有效而无创伤的显示肝脏动、静脉及与周围组织关系的检查方法。更多还原

【Abstract】 Objective To evaluate the 16-slice spiral CT 3D reconstruction in the imaging of hepatic artery and portal system.Methods From March to June 2005,100 patients with hepatocellular carcinoma underwent spiral CT scan.Imaging of the hepatic artery and portal system obtained via 3D reconstruction techniques including SSD,VRT and MIP were compared.Results The level I to IV of hepatic artery and portal system were displayed successfully using SSD,VRT and MIP.MIP and VRT were superior to SSD in demonstrating the details beyond level V.SSD and VRT were better than MIP in evaluating the relationship between the blood vessels and surrounding structures.Conclusion The 16-slice spiral CT 3D imaging of the hepatic artery and portal system is a non-invasive,efficient and quick modality in evaluating the hepatic vascular system as well as the relationship between blood vessels and surrounding structures.SSD,VRT and MIP have different advantages in the imaging.更多还原