肝门静脉右支的临床解剖

Clinical anatomy of the portal branches of right

目的探讨肝门静脉右支的形态特征和分支分布规律。方法 50例肉眼观察无病变的成人尸肝进行剥离解剖,对肝门静脉右支的形态结构进行观察,测量主干及主要分支的相关数据并进行统计学分析。结果 82.0%肝门静脉分为左﹑右两支,其成角(105.59±13.82)°,依据右支主干分支将其分为5型,其中65.8%右支主干分为右后叶支和右前叶支。右后叶支主干的分支情况亦可分为6型,主要供应Couinaud 6、7段,然6.0%的6段部分血供可来自右前叶支,2.0%全部来自右前叶支的分支。右前叶支主干,主要供应5、8段,但有36.0%的5段血供来自于右后叶支,而6.0%右前叶支发出血管走行至4段。结论肝门静脉右支主干及主要分支的类型变化较大,其分支分布直接影响到右半肝各肝段的界定,肝脏外科术前必须对其进行详细而准确的评估。

Objective To provide the morphological data for diagnosis and treatment of the liver diseases by observation of the anatomical properties and embranchment of the right portal branches. Methods Fifty non-illness by visual study adult cadaveric livers were anatomied, embrancbment of the right portal branches was observed, the main trunk of right portal branches and correlated data were measured and analyzed statistically. Results Totally 82% appeared right and left branch distribution of the portal vein, the angnlation was（ 105.59 ~ 13.82） o, there were 5 types for right portal vein,65.8% there were posterior segmental and anterior segmental branch of right stems. There are 6 types for posterior segmental branch of right stems which provide Couinaud 6,7 segment, but 6.0% portion of 6 segment provided by anterior segmental branch, 2.0% the whole come from anterior segmental branch. The anterior segmental trunk provide 5,8 segment, 36.0% 5 segment provided by posterior segmental, 6.0% anterior segmental branch to 4 segment. Conclusion There are many types for right branch of hepatic portal and influence segmenting of right herniliver, the branching directly impacts on right sublobe and segmenting, so detailed and accurate evaluation before surgery of liver should be maken.