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为给肝内占位性病变的ＣＴ定位提供解剖学依据，利用２０例腹部连续横断层标本和１０例活体正常肝的ＣＴ图像，研究了Ｃｏｕｉｎａｕｄ肝段在ＣＴ图像上的划分。正中裂为下腔静脉左前壁至肝中静脉或胆囊的连线；左叶间裂的上部为左叶间静脉至下腔静脉左前壁的连线，门静脉左支脐部和肝圆韧带裂是其中、下部的天然标志；肝左静脉行于左段间裂内；右叶间裂为肝右静脉至下腔静脉左前壁的连线；肝门或门静脉右支是右段间裂的标志；背裂为下腔静脉右缘至静脉韧带裂右端或门静脉的连线。本文还探讨了易致错分肝段的一些因素。
In order to provide anatomical basis for the CT localization of intrahepatic space-occupying lesions, CT images of 20 cases of abdomen continuous cross-sectional specimens and 10 cases of normal living liver were used to study the segmentation of Couinaud’s hepatic segments on CT images. The median fissure is the connection of the left anterior inferior wall of the inferior vena cava to the middle hepatic vein or gallbladder. The upper part of the left interlobular fissure is the connection of the left interlobular veins to the left anterior wall of the inferior vena cava, Split is the middle of the lower part of the natural mark; left hepatic vein in the left intercostal fissure; right lobar fissure for the right hepatic vein to the left inferior vena cava anterior commissure; right portal or portal vein right mesenchyme Of the sign; back crack is the right inferior vena cava to the right vena cava or left ventricular line connection. This article also explores some of the factors that can lead to the wrong liver segment.