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目的探讨肝尾状叶静脉分别在正常人群和Budd-Chiari患者中的显示以及测量显示的直径,并评价肝尾状叶静脉在Budd-Chiari综合征的诊断价值。方法 14例Budd-Chiari综合征MRI资料(Budd-Chiari组)和54例上腹部MRI增强检查阴性病例(正常组),在横断位上观察正常组和Budd-Chiari组肝尾状叶静脉的显示,分别计算其显示率,测量正常组和Budd-Chiari组显示肝尾状叶静脉直径,在其下腔静脉汇入口处测量,并进行比较。结果在MRI横断位上,两组病例中显示的肝尾状叶静脉都为一支,汇入下腔静脉左前壁或前壁,54例正常组显示4例,显示率为7.4%,显示直径为0.2~0.34 cm,平均0.26 cm;14例Budd-Chiari组显示9例,显示率为64%,显示宽径为0.4~1.69 cm,平均0.73 cm。Budd-Chiari组肝尾状叶静脉的显示率及显示直径大于正常组,差别有统计学意义(P<0.05)。结论在综合判断肝脏形态及血供的前提下,肝尾叶静脉显示及扩张且扩张直径≥0.4 cm,要高度怀疑Budd-Chiari综合征的可能。
Objective To investigate the appearance and measurement of the caudate lobe vein in normal and Budd-Chiari patients and to evaluate the diagnostic value of the caudate lobe vein in Budd-Chiari syndrome. Methods 14 cases of Budd-Chiari’s MRI (Budd-Chiari group) and 54 cases of negative MRI examination of the upper abdomen (normal group) were observed. The transverse venation of the Budd-Chiari group and the Budd-Chiari group were observed. , Respectively, the display rate was calculated, the normal group and Budd-Chiari group were measured to show the diameter of the caudate lobe vein in the inferior vena cava entrance measured and compared. Results In the transverse section of MRI, the caudate veins of the two groups showed one, which were introduced into the left anterior inferior wall or the anterior wall of inferior vena cava. Four of 54 normal group showed a rate of 7.4% Diameter ranged from 0.2 to 0.34 cm with an average of 0.26 cm. In the Budd-Chiari group, 9 cases were seen in 14 cases with a display rate of 64%, showing a width of 0.4 to 1.69 cm with an average of 0.73 cm. In Budd-Chiari group, the display rate and diameter of hepatic caudate lobe veins were larger than those in normal group (P <0.05). Conclusion Under the premise of comprehensively judging the morphology and blood supply of the liver, the caudate lobe veins show and dilate and expand more than 0.4 cm in diameter, and the possibility of Budd-Chiari syndrome should be highly suspected.