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目的探讨胃左静脉(LGV)和门静脉(PV)内径与肝硬化Child-Pugh分级间的关系。资料与方法应用16层螺旋CT对100例肝硬化患者和200名正常对照者行上腹部增强扫描,采用多平面重组(MPR)、最大密度投影(MIP)和容积重组(VR)对PV和LGV进行血管重建,测量LGV和PV主干的直径并进行统计学分析。结果总体肝硬化组LGV和PV管径与正常对照组比较明显增粗(P<0.05)。Child-A级和B级组PV最大内径较正常对照组和Child-C级组显著增粗(P<0.05)。Child-C级组和正常对照组、Child-A级和B级组PV最大内径比较差异无统计学意义(P>0.05)。正常对照组、肝硬化无腹腔积液组、肝硬化有腹腔积液组LGV内径逐渐增粗且差异具有统计学意义(P<0.05)。结论多层螺旋CT血管成像(MSCTA)可以清晰显示LGV和PV整体解剖结构,并能准确测量其内径,LGV和PV内径与肝硬化程度存在一定关系,但影响LGV和PV内径因素较多,不能单纯依靠管径大小评价肝硬化程度。
Objective To investigate the relationship between gastric left ventricular (LGV) and portal vein (PV) diameters and Child-Pugh classification of cirrhosis. Materials and Methods 100 cases of cirrhosis patients and 200 normal controls were performed abdominal augmentation scan with 16-slice spiral CT. The levels of PV and LGV were measured by multiplanar reconstruction (MPR), maximum density projection (MIP) and volumetric reformation (VR) Vascular reconstructions were performed, diameters of the LGV and PV trunk were measured and statistically analyzed. Results The overall diameter of LGV and PV in cirrhotic group were significantly thicker than those in normal control group (P <0.05). The maximum diameter of PV in Child-A and B groups was significantly thicker than that in normal control group and Child-C group (P <0.05). Child-C group and normal control group, Child-A and B group PV maximum diameter was no significant difference (P> 0.05). In the normal control group, there was a significant increase in the inner diameter of LGV in patients with liver cirrhosis without ascites and cirrhosis with ascites (P <0.05). Conclusions Multi-slice spiral CT angiography (MSCTA) can clearly show the overall anatomy of LGV and PV, and can accurately measure the inner diameter of LGV. The inner diameter of LGV and PV have a certain relationship with the degree of liver cirrhosis, but there are many factors affecting the inner diameter of LGV and PV, Purely rely on the size of the assessment of liver cirrhosis.