螺旋CT肝脏分区容积研究

目的　观察正常肝脏、肝硬化肝脏和肿瘤肝脏各分区容积的变异性。方法　收集行CT扫描的住院肝硬化病人 5 0例 ,正常对照组 4 0例 ,异常对照组 (肝右叶巨块型肝癌 ) 2 9例。分别测量正常肝、肝硬化肝的 4个分区容积和异常对照组的左外区容积 ,比较三组各值和差异。结果　正常肝和肝硬化肝左外区 ,左内区 ,右前区 ,及右后区的构成比分别为 [(16 .8± 2 .6 ) %、(15 .5± 3.3) %、(30 .5± 3.2 ) %、(31.9± 3.0 ) % ]和[(13.9± 6 .8) %、(2 0 .0± 7.95 ) %、(31.35± 5 .9) %、(30 .4± 5 .8) % ];肝硬化组、正常对照组和异常对照组三组所测的左外区容积分别为 15 9.0 0ml、15 8.97ml和 2 4 7.76ml,异常对照组与其它两组差异显著 (P <0 .0 5 )。结论　肝硬化时 ,左外区容积变化无差异 ,左内区、右前区和右后区均有明显缩小。右半肝巨大肝癌时 ,左外区容积代偿性增大。

Research on volume of liver segment in liver cirrhosis

Objective:To research the difference of hepatic segment in cirrhosis liver,normal liver and hepatocarcinoma liver.Methods:The study included 119 subjects in total divided into 3 groups,the cirrhosis study group of 50 cases,the normal control group of 40 cases and the abnormal control group (large hepatocarcinoma in right lobe of liver) of 29 cases.The liver volumes and the component volumes of 4 liver segments both in the study group and in the normal group were measured with CT measuring software.Comparison was made for the volume of left lateral segment of the abnormal control group with those of the other two groups combined.Results:The composed ratios of left lateral liver segment,left internal segment,right front segment and right back segment in the two gcoups were [(16.8±2.6)%,(15.5±3.3)%,(30.5±3.2)%,(31.9±3.0)%] and [(13.9±6.8)%,(20.0±7.95)%,(31.35±5.9) %,(30.4±5.8) %] respectively.The volumes of left lateral liver segment in cirrhosis group,normal group and abnomrmal group were 159.00 ml,158.97 ml and 247.76 ml respectively.The difference between the abnormal group and others was significant in statistics ( P＜0.05).Conclusions:The volume of left lateral segment is not enlarged in cirrhosis and becomes enlarged when other liver segment are invaded by large tumors.The volumes of other 3 segments are atrophied in cirrhosis.