3.0 T MR LAVA技术在肝硬化胃左静脉显示的应用价值  

The Value of LAVA 3.0 T MRI in Left Gastric Vein with Liver Cirrhosis

作　　者：牛建栋[1] 郭玉林[2] 丁伟伟[1] 黄婷婷[1] 蔡磊[2] 赵建国[2] 朱力[2] 来彦博[2] 

机构地区：[1]宁夏医科大学,750004 [2]宁夏医科大学附属医院放射科,750004

出　　处：《临床放射学杂志》2011年第4期516-519,共4页Journal of Clinical Radiology

基　　金：宁夏医科大学"博士学位建设学科"资助项目(编号:KF2010-38)

摘　　要：目的用3.0 T MR肝脏加速容积采集(liver acceleration volume acquisition,LAVA)技术显示胃左静脉(LGV),探讨LGV扩张程度与肝硬化损害程度的关系。资料与方法对40例肝硬化患者及20名正常自愿者行上腹部检查,采用最大密度投影(MIP)对LGV显示,并测量其直径。结果 40例肝硬化患者及20名正常自愿者LGV显示清晰。Child-Pugh A级组及Child-Pugh B、C级组的LGV直径较正常组明显增宽(P<0.05);上消化道出血组较不出血组的LGV直径增宽,两者之间差异有统计学意义(P<0.05);肝硬化患者LGV直径≥6 mm组比其直径<6 mm组上消化道出血的风险增大,差异有统计学意义(P<0.05)。结论应用LAVA技术可以清晰显示LGV;测量LGV的直径可以间接评估肝功能损害程度;LGV直径明显增宽是上消化道出血的风险因素,当LGV直径≥6 mm,上消化道出血的风险性增加。Objective To discuss the demonstration of left gastric vein with liver cirrhosis using the LAVA technology of 3.0T MR,and assess the relationship between the level of liver cirrhosis and the dilated degree of left gastric vein（LGV）.Materials and Methods 40 liver cirrhosis and 20 volunteers received upper abdominal examination using the LAVA of 3.0T MRI technique to display the left gastric veins and measure its diameter with maximum intensity projection（MIP）.Results LGV of 40 liver cirrhosis and 20 volunteers were clearly depicted.LGV of Child Pugh A class group and Child Pugh B,C-level group was noticeably widen in diameter than that of the normal group（P0.05）;Left gastric vein diameter in the upper gastrointestinal bleeding group was widened than that of the non-bleeding group（P0.05）;In the cirrhosis group,when LGV diameter ≥ 6 mm,the risk of upper gastrointestinal bleeding will increase（P0.05）.Conclusion LGV can be clearly seen using the LAVA technique.Measuring the diameter of LGV in patients with cirrhosis can evaluate degree of liver function indirectly.LGV diameter enlarged obviously is the risk of upper gastrointestinal bleeding.When LGV diameter ≥ 6 mm,the risk of upper gastrointestinal bleeding will increase.

关 键 词：磁共振成像 肝脏加速容积采集技术 肝硬化 胃左静脉 

分 类 号：R575.2[医药卫生—消化系统]