【摘要】 目的 探讨多层螺旋CT血管成像(MSCTA)与数字减影血管造影(DSA)在肝动脉成像质量有无差异。方法 对32例肝恶性肿瘤患者,先后行肝动脉MSCTA和DSA检查,两者间隔时间不超过1周,对比分析MSCTA与DSA对肝动脉的解剖类型、肝动脉各级分支显示能力。结果 与DSA相比,MSCTA对肝动脉解剖类型诊断符合率达96.9%例(31/32),正常型肝动脉为71.9%(23/32),变异型肝动脉28.1%(9/32);MSCTA与DSA在肝固有动脉、一级肝动脉的显示能力上无明显差别,在二级、三级肝动脉的显示能力上有统计学差异,DSA优于MSCTA(Wilcoxon法,P<0.0125),在四级以下肝动脉的显示上,MSCTA的显示率为0,远远不如DSA。结论 尽管MSCTA和DSA在显示二级以下肝动脉分支上存在差异,但仍不失为一种有效的方法。更多还原

【Abstract】 Objective To evaluate the ability of multi-slice spiral CT angiography(MSCTA) in comparison with digital subtraction angiography(DSA) in displaying hepatic artery.Methods MSCTA and DSA of hepatic artery were performed in thirty-two patients with malignant tumor of liver within one week.The ability of showing the anatomical type of hepatic artery and hepatic artery branches at all levels with MSCT and DSA were comparatively analyzed.Results In comparison with DSA,the diagnostic accuracy of MSCTA in showing the anatomical type of hepatic artery was 96.9%(31/32),of that,normal type of hepatic artery accounted for71.9%(23/32) and the aberrant hepatic artery accounted for 28.1%(9/32).There was no significant difference between MSCTA and DSA in the ability in showing proper hepatic artery,right hepatic artery and left hepatic artery,however,there was statistically significant difference between MSCTA and DSA in the ability in showing the level Ⅱ to Ⅲ of hepatic artery,DSA was superior to MSCTA(Wilcoxon method,P<0.0125);MSCTA was inferior to DSA in the ability in displaying hepatic artery beyond level Ⅳ,the display rate of MSCTA was zero.Conclusion MSCTA is different from DSA in the ability of displaying hepatic artery beyond grade Ⅱ,but MSCTA is still a effective way for that.更多还原