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肝圆韧带起自脐,汇入门静脉左干囊部,称为脐一门静脉连接(Umbilical-portalveinjunction,简称U-PJ),内有连续性残腔,可用力学方法行人工再通,以建立一条可供临床诊治疾病的通道。在成人,U-PJ处残腔多数开放,亦见有膈膜或瓣膜样结构,可分为三型:狭窄型(44.1%)、瓣膜样型(28.8%)及膈膜型(27.1%).狭窄型U-PJ,残腔较狭窄,肝四韧带管壁较厚;膈膜型U-PJ,在肝圆韧带残腔与门静脉左于囊部管腔之间有一技厚的纤维性膈膜;瓣膜样型U-PJ.在门静脉左干翼部管壁上存在一瓣膜样结构。探针扩张可使肝圆韧带及U-PJ再通,进入门静脉左干囊部管腔内。流体静压灌注可使肝圆韧带再通,对U-PJ处常需加用探针辅助扩张,才能完成肝圆韧带的人工再通。
Liver round ligaments from the umbilical cord, into the left portal vein of the portal vein, called umbilical a portal vein connection (Umbilical-portalveinjunction, referred to as U-PJ), there are continuous residual cavity, mechanical methods can be recanalized manually to create a Available for clinical diagnosis and treatment of disease channels. In adults, most of the residual cavity at U-PJ is open, and there are also three types of diaphragm or valve-like structures: stenosis type (44.1%), valve type (28.8%) and diaphragm type (27.1%). Narrow U-PJ, the residual cavity is relatively narrow, thick wall of the liver four ligament; diaphragm U-PJ, in the liver round ligament residual cavity and the left portal vein in the capsule lumen a thick fibrous diaphragm ; Valve type U-PJ. There is a valve-like structure on the wall of the left portal vein. Expansion of the probe can make round liver ligament and U-PJ recanalization, into the left portal vein of the lumen of the lumen. Fluid hydrostatic pressure perfusion can make recanalization of the liver round, U-PJ Department often need to add probe-assisted dilation in order to complete the recanalization of the round ligament.