肝内胆管结石及其并发症的磁共振成像研究  

Magnetic resonance imaging study of intrahepatic bile duct stones and related complications

作　　者：陈静[1] 欧静 周海鹰[1] 张小明[1] 陈天武[1] CHEN Jing;OU Jing;ZHOU Hai-ying;ZHANG Xiao-ming;CHEN Tian-wu(Medical Imaging Key Laboratory of Sichuan Province,Department of Radiology,Affiliated Hospital of North Sichuan Medical College,Nanchong 637000,Sichuan,China)

机构地区：[1]医学影像四川省重点实验室,川北医学院附属医院放射科,四川南充637000

出　　处：《川北医学院学报》2022年第7期839-842,共4页Journal of North Sichuan Medical College

基　　金：国家自然科学基金(81050033);四川省科技支撑计划项目(2011SZ0237);四川省南充市科技项目(市校科技战略合作专项)(NSMC20170206)。

摘　　要：目的:探讨肝内胆管结石磁共振成像(MRI)的影像特征及其相关并发症类型。方法:回顾性分析66例肝内胆管结石患者的MRI平扫及增强扫描、磁共振胰胆管成像(MRCP)影像资料,分析其肝内胆管结石的信号特征、解剖分布特征、合并胆总管结石的特点及其并发症的类型。结果:(1)信号特征:肝内胆管结石在T1加权成像(T1WI)高信号比例高于低信号(P<0.05);(2)解剖分布特征:肝内胆管结石的优势解剖部位为肝左叶内胆管(P<0.05);(3)合并胆总管结石的特点:肝内胆管结石合并胆总管结石共45例,其中左肝内胆管结石及左、右肝内胆管结石合并胆总管结石的发生率高于右肝内胆管结石合并胆总管结石的发生率(P<0.05);(4)并发症:肝内胆管结石的并发症中以受累肝叶萎缩发生率最高,其次是受累肝叶炎症(P<0.05)。结论:肝内胆管结石在T1WI主要呈高信号,其优势解剖部位为左肝内胆管;肝内胆管结石合并胆总管结石的发生率与肝内胆管结石的发生部位有关;肝内胆管结石的并发症中以受累肝叶萎缩最常见。Objective:To investigate the magnetic resonance imaging(MRI)features and the types of complications related to intrahepatic bile duct stones.Methods:The imaging data of 66 patients with intrahepatic bile duct stones were collected retrospectively.All the patients were performed on MRI,including plain scanning,contrast enhanced scanning and magnetic resonance cholangiopancreatography(MRCP).The signal features,anatomical distribution features,characteristics of complicated with common bile duct stones and related complications of intrahepatic bile duct stones were analyzed.Results:(1)Signal features:The proportion of high signal was higher than that of low signal on T1-weighted imaging(T1WI)of intrahepatic bile duct stones(P<0.05).(2)Anatomical distribution features:The dominant anatomical location of intrahepatic bile duct stones was the intrahepatic bile duct of left lobe(P<0.05).(3)Characteristics of intrahepatic bile duct stones complicated with common bile duct stones:There were 45 cases of intrahepatic bile duct stones concomitant with common bile duct stones.The incidence of left intrahepatic bile duct stones and left and right intrahepatic bile duct stones concomitant with common bile duct stones was higher than that of right intrahepatic bile duct stones concomitant with common bile duct stones(P<0.05).(4)Related complications:As for the complications of intrahepatic bile duct stones,it occurred most commonly in the atrophy of affected hepatic lobe,followed by the inflammation of affected hepatic lobe(P<0.05).Conclusion:Intrahepatic bile duct stones are mainly high signal on T1WI,and the dominant anatomical location of it is the left intrahepatic bile duct.The incidence of intrahepatic bile duct stones concomitant with common bile duct stones is related to the location of intrahepatic bile duct stones.The most common complication of intrahepatic bile duct stones is the atrophy of the involved liver lobe.

关 键 词：肝内胆管结石 磁共振成像 并发症 磁共振胰胆管成像 肝叶萎缩 

分 类 号：R445.2[医药卫生—影像医学与核医学] R575.7[医药卫生—诊断学]