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为给MR图像精确定位肝内占位性病变提供断面解剖学依据,利用20例腹部连续横断面标本,研究了肝段在横断面上的划分。正中裂为下腔静脉中点至肝中静脉或胆囊窝中份的连线;左叶间裂的上份为下腔静脉中点至镰状韧带的连线,门静脉左支脐部和肝圆韧带裂是其中、下份的天然标志;肝左静脉位于左段间裂中;右叶间裂为下腔静脉中点至肝右静脉的连线;肝门或门静脉右支可作为右段间裂的标志;背裂为下腔静脉右缘至门静脉或静脉韧带裂右端的连线。
In order to provide sectional anatomical basis for the accurate localization of intrahepatic space-occupying lesions in MR images, 20 segments of abdominal continuous cross-sectional specimens were used to study the segmentation of liver segments in the transverse section. The median fissure is the midpoint of the inferior vena cava to the middle of the hepatic vein or gallbladder fossa, and the upper left fissure is the connection of the inferior vena cava to the sickle ligament. The left branch of the portal vein and the liver circle Ligament rupture is one of the following, the next natural sign; left hepatic vein located in the left segment of the fissure; right lobar fissure for the inferior vena cava to the right hepatic vein connection; right hepatic portal or portal vein can be used as the right segment Cracked sign; back crack is the right edge of the inferior vena cava to the right side of the portal vein or venous ligament connection.