MR 3D LAVA技术在布加综合征的应用价值  

Application value of 3D LAVA dynamic contrast MR in Budd-Chiari syndrome

作　　者：王啸[1] 吴静[1] 王召华[1] 赵雪梅[1] 钱银锋[1] 余永强[1] WANG Xiao;WU Jing;WANG Zhaohua;ZHAO Xuemei;QIAN Yinfeng;YU Yongqiang(Department of Radiology,the First Affiliated Hospital,Anhui Medical University,He fei 230022,China)

机构地区：[1]安徽医科大学第一附属医院放射科,安徽合肥230022

出　　处：《实用放射学杂志》2019年第5期763-766,共4页Journal of Practical Radiology

摘　　要：目的探讨三维肝脏快速容积采集(3D LAVA)多期动态增强MRI技术在布加综合征(BCS)的应用价值。方法回顾性分析49例行3D LAVA增强并经DSA检查证实的BCS患者的病例资料。观察下腔静脉、肝静脉、副肝静脉(AHV)、侧支循环的MR和DSA表现,采用χ2检验比较3D LAVA和DSA在BCS分型、AHV计数情况的差异性;采用Student’s t检验比较2种检查方法测量AHV平均直径的差异性;采用Kappa检验评估2种检查方法对检出AHV(≥5 mm)的一致性。结果49例患者中,3D LAVA与DSA在BCS的分型中无显著差异(P=0.694);2种方法检出AHV支数和平均直径的差异有统计学意义(P<0.01);Kappa检验显示2种检查方法对检出AHV的一致性较好(k=0.621);3D LAVA在侧支循环的显示较DSA有更多优势。结论3D LAVA多期动态增强扫描技术可较准确地显示肝静脉、下腔静脉、AHV、肝外侧支循环改变,能够对患者病情评估及介入治疗方法选择提供帮助。Objective To investigate the application value of three dimensional liver acceleration volume acquisition(3D LAVA)multiphase dynamic contrast enhanced MRI in Budd-Chiari syndrome(BCS).Methods A retrospective analysis was performed for the clinical data of 49 patients with BCS who underwent 3D LAVA multiphase dynamic contrast enhanced MRI and were confirmed by DSA.The appearance of inferior vena cava,hepatic vein,accessory hepatic vein(AHV)and collateral circulation on both DSA and 3D LAVA were observed.BCS type and AHV numbers were analyzed using the X test.3D LAVA and DSA in the measurement of the mean diameter of AHV were compared by Student's t test.The Kappa statistics was calculated to quantify the consistency between the two methods in the detection of AHV.Results Among the 49 patients,there was no significant difference between MRI and DSA in BCS classification(P=0.694).MRI and DSA showed statistical significances(P<0.01)in the number of AHV and the mean caliber of the AHV respectively.The Kappa coefficient(K=0.621)demonstrated good consistency for the two methods in detecting thenumber of AHV.3D LAVA showed more advantages in collateral circulation than DSA.Conclusion 3D LAVA may accurately detect hepatic vein,inferior vena cava,AHV,and extrahepatic collateral circulation in BCS and can help to evaluate the patient's condition as well as to select the alternative modality in interventional therapy.

关 键 词：加综合征 肝脏快速容积采集 磁共振成像 

分 类 号：R575[医药卫生—消化系统] R445.2[医药卫生—内科学]