肝硬化患者肾动脉管径变化的MSCT检测和评价

Changes of the renal artery diameters in liver cirrhosis patients:evaluation with MSCTA

目的利用CTA进行肾动脉成像并测量肾动脉各级分支的血管管径,研究肝硬化患者肾动脉各级血管管径变化情况。方法对47例经B超、CT、生化、肝穿刺等确诊为肝硬化患者及36例对照组病例进行CTA扫描,并测量、对比肾动脉主干、第一级分支的血管管径,比较两组中肾动脉一级分支与主干比值的差异性。结果肝硬化组与对照组相比:左肾动脉主干、第一级分支的管径的平均值均略小,但经独立两样本t检验,两组间动脉管径无显著差异。肾动脉一级分支与主干比值在两组间也无统计学差异(P>0.05)。肝硬化组内随着肝硬化程度的加重,左肾动脉主干、第一级分支的管径的平均值呈略递减趋势,但经方差分析,Child A、Child B与Child C比较差异均无统计学差异(P>0.05);肾动脉一级分支与主干比值在Child A、Child B、Child C组间对比无统计学差异(P>0.05)。结论肝硬化时肾动脉主干、第一级分支的血管管径改变不明显,血管管径也没有随着肝硬化程度加深而出现明显变窄。

Objective To investigate the changes of renal artery diameters in liver cirrhosis patients by using 16-slice spiral computed tomography angiography（MSCTA）.Methods Forty-seven patient with ultrasonography,CT,biochemistry and biopsy confirmed liver cirrhosis and thirty-six age-matched normal subjects who were taken as control group underwent MSCTA to measure the diameters of left renal arteries which comprised artery trunks and one lever branches and to calculate the ratio of artery trunk diameters and one level branch diameters.All data obtained from the both groups were statistically analyzed and compared each other.Results The diameters of left renal artery tranks and one level branches in liver cirrhosis patients were slightly smaller than those in control group but there were not statistic difference between the both groups（P 〉0.05）.The ratio of artery trunk diameters and one level branch diameters,which was analyzed by Child A,Child B and Child C either in liver cirrhosis patients or in control group was also not statistic difference（P 0.05）.Conclusion In liver cirrhosis patients,the diameters of renal artery trunks and one level branches are not obviously changed with deterioration of liver cirrhosis,these renovascular diameters are also not significantly stenosed.