多层螺旋CT血管造影在肝动脉成像中的应用价值  

Piagnosis value of muti-slice CT perfusion imaging in small metastatic liver cancer

作　　者：丛也彤[1] 张可名 

机构地区：[1]吉化集团公司总医院CT科,吉林吉林市132021

出　　处：《中国实验诊断学》2009年第9期1207-1209,共3页Chinese Journal of Laboratory Diagnosis

摘　　要：目的探讨64层螺旋CT肝脏多期血管成像方法及其临床价值。方法对66例肝脏多期增强扫描患者,行肝动脉期血管成像,采用最大密度投影(MIP)、容积再现技(VRT)、表面遮盖显示(SSD)重建技术,分析三种重建方法对肝动脉以及肝肿瘤血管性病变(HTVPC)显示情况。结果肝动脉期CT血管造影术(CTA)对二级肝动脉、三级分支以下肝动脉、显示率分别约90%6、8%。MIP与VRT对二级肝动脉分支及肿瘤供血动脉显示的差异无统计学意义(P>0.05),对三级以下肝动脉分支及肿瘤血管的显示有显著性差异(P<0.05),以MIP显示率为高。结论64层螺旋CT肝血管成像是了解肝动脉系统状况及肝肿瘤血管性病变的无创性血管成像技术,可为外科手术及介入术前供重要信息及指导作用。Objective Study of the liver artery in Multi-slice spiral CT angiographyMethods To discuss the feasibility and clinical value of multi-phase angiography of the liver with 64-slice spiral CT. Results The hepatic arterial phase and angiography were performed in 66 patient s. Maximum intensity projection （MIP）, volume reconst ruction technique （VRT） and surface shaded display （SSD） were used to reconstruct the liver vessels, and the displaying status of hepatic artery. Conclusion In hepatic artery phase CT angiography （CTA）, the displayingTates of the grade22 hepatic arterial branches （HABs）, grade23 and sub2grade2,3 were 90%, 68% .Between MIP and VRT,there were no significant differences （ P 〉 0.05） in displaying grade22 HABs and TBFA ; but there were significant differences （ P 〈 0.05） in displaying sub2grade23 HABs and ITTVs, and MIP was superior to VRT. Conclusion spiral CTA is a non invasive technique for obscrving hepatic arteries, which can provide important information and guidance effect for surgical operation and interventional therapy.

关 键 词：肝脏 血管造影术 断层摄影术 X线计算机 

分 类 号：R575[医药卫生—消化系统] R816.5[医药卫生—内科学]