| 梁颖,蒋涛,王亚杰,翟小力,翟仁友.螺旋CT评价门静脉海绵样变性及其侧支循环的特点[J].中国医学影像技术,2008,24(7):1076~1079 |
| 螺旋CT评价门静脉海绵样变性及其侧支循环的特点 |
| Collateral circulation in cavernous transformation of the portal vein with spiral CT |
| 投稿时间：2007-09-13 修订日期：2008-04-27 |
| DOI： |
| 中文关键词: 门静脉 海绵样变性 侧支循环 体层摄影术,X线计算机 |
| 英文关键词:Portal vein Cavernous transformation Collateral circulation Tomography, X-ray computed |
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| 中文摘要: |
| 目的 探讨门静脉海绵样变性(CTPV)不同CT分型及门静脉病变范围的侧支循环特征。方法 收集门静脉海绵样变性83例进行回顾性分析, 所有病例均行标准化上腹部螺旋CT双期增强扫描,其中40例原始数据进行重建,分别行VR、MIP和MPR重组。Ⅰ型:门静脉原因不明的管腔狭窄或消失;Ⅱ型:门静脉管腔正常或增粗,内可见栓子形成;Ⅲ型:门静脉走行区病变推挤侵犯门静脉,门静脉管腔狭窄或闭塞。观察CTPV侧支血管的CT表现,对比分析不同CT分型的年龄及门静脉不同病变范围侧支血管的特点。结果 Ⅰ型与Ⅱ型和Ⅲ型的年龄间统计学差异有显著性(P<0.05)。与肝内门静脉病变比较,肝内外门静脉病变的胰十二指肠后上静脉的显示率高(P<0.05)。CTPV中的胆支、胃支是参与门-门短路和门体分流的最常见的侧支血管,显示率分别为100％、81.9％。73.5％胆支、8.4％胃支、18.1％胆支和胃支共同参与门-门短路的侧支循环。结论 不同CT分型的CTPV,Ⅰ型患者年龄小于Ⅱ型和Ⅲ型。门静脉病变范围广的CTPV中,胰十二指肠后上静脉的显示率高。胆支是构成CTPV门-门短路的主要侧支血管,部分胃支也形成侧支参与门-门短路侧支循环。 |
| 英文摘要: |
| Objective To investigate the composition and the spiral CT appearances of the collateral vessels in various CT patterns of CTPV and involved location of portal vein. Methods Eighty-three patients with CTPV, scanned with spiral CT and standardized 2 phases, were retrospectively collected; forty patients of which were reconstructed with VR, MIP and MPR. Based on various CT findings of involved portal vein, all patients were classified into 3 groups: agnogenic narrow or obliteration of lumen, normal or distention of lumen with thrombi, displaced and infiltrated lumen. The patients’ age and collateral vessels morphologic changes of 3 groups, and the characteristics of the collateral vessels in different involved location of portal vein were compared. Results The patients’ age of the first group was younger (P<0.05). All biliary branches and 81.9% gastric branches were displayed in CTPV. Statistical significant difference in displaying posterior superior pancreaticoduodenal vein was noted in different involved location of the portal vein (P<0.05). The portoportal collateral route were composed of 73.5％ biliary branches, 8.4％ gastric branches, 18.1％ biliary branches＋gastric branches. Conclusion In three groups patients, the first group patients are younger than the other two. The CTPV involved the intrahepatic and extrahepatic portal vein has the higher rate of posterior superior pancreaticoduodenal veins than the intrahepatic portal vein. The biliary branches are the major portoportal collateral vessels. Part of gastric branches composed proto-systematic route participate portoportal collateral circulation. |
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