摘要
目的:探讨 TIPSS 分流道狭窄的影像特征及狭窄的形成机制。材料与方法:58例 TIPSS 术后病人行89人次的血管造影复查,除对分流道的造影表现及其伴随改变进行描述外,对分流道狭窄者按其形态、位置及程度进行分组统计和分析。结果:58例门脉造影复查者中,22例分流道通畅,21例分流道狭窄(分流道直径<50%),15例分流道闭塞。累积狭窄与闭塞者36例(62.1%)。分流道狭窄的好发部位为引流肝静脉和分流道内。引流肝静脉狭窄多呈偏心性,分流道内狭窄呈向心性。结论:1)TIPSS 分流道狭窄以引流肝静脉与分流道内为多见,且引流肝静脉狭窄多呈偏心性,分流道内狭窄呈向心性。2)分流道狭窄与分流道血栓形成、支架末端刺激以及异常血流效应有关。
Purpose:To study the angiographic characteristics and mechanism of shunt stenosis-occlusiion after TIPSS.Materials and methods:Eighty-nine portal venograms were obtained in 58 patients.Venograms analysis had been performed according to shape,position and degree of shunt stenosis.Results:Thirty-six shunt abnormaloties were found in the portal venograms of 58 patients,Shunt stenosis(diameter <50%)was shown in 21 patients and occlusion in 15 patients,whereas the other 22 patients had well functioning shunts.The position of shunt stenosis was often seen at the outflow hepatic vein and parenchymal tract,and the pattern of the former was mostly centrifugal,but the that of the latter was centripetal.Conclusion:1)The posi- tion of shunt stenosis is often seen at the outflow hepatic vein and parenchymal tract.2)The eti- ology of shunt tract stenosis be related to thrombosis and abnormal hemodynamic factors.
出处
《介入放射学杂志》
CSCD
1998年第4期203-206,共4页
Journal of Interventional Radiology
关键词
门腔分流术
血管造影
分流道狭窄
Portal Shunt
Angiograpy
Vascular disease
Liver Intervention radiology
