三维磁共振减影胆胰管成像50例

目的 探讨三维磁共振减影胆胰管成像（3D－MRSCP）的方法，评价该技术对胆胰系统疾病的临床应用价值。方法 50例临床怀疑胆胰管疾病患者进行3D快速自旋回波重T2扫描。原始图像先进行减影处理，再进行最大信号强度投影（MIP）重建。结果 本组96％的病例满意地显示感兴趣区的胆胰管结构（除2例先天性胆道狭窄外）。其中胆管癌10例，胆系结石7例，胆系炎症5例，先天性胆系畸形3例（胆道囊肿2例、双胆囊1例），肝癌侵犯胆管4例，胰头癌和壶腹癌各3例，慢性胰腺炎2例，壶腹炎、外伤性肝破裂及转移癌及1例，正常表现8例。结论 3D－MRSCP是一种新的、快速安全成像技术。尤其在其它检查方法难以显示或不能诊断时，3D－MRSCP仍能提供良好胆胰管形态、解剖结构及病因诊断等信息。

Three Dimensional MR Subtraction Cholangiopancreatography

Objective:To study the method of three dimensional magnetic resonance imaging subtraction cholangiopancrea tography(3D MRSCP) and evaluate the diagnostic value in patients with cholangiopancreatic diseases.Methods:50 cases of suspected cholangiopancreatic ducts diseases underwent 3D FSE(fast spin echo)heavy T 2 examination.The source images were subtraction from mask images followed by maximum intensity projection(MIP) reconstruction.Results:96% patients cholangiopancreatic ducts were well demonstrated(except 2 cases congenital stricture of bile ducts),among them,cholangiocarcinomas(10),bile duct stones(7),bile duct infections(5),congenital malformation of biliary ducts(3),hepatic carcinoma eroded bile ducts(4),head of pancreatic carcinomas(3),ampullary carcinomas(3),chronic pancreatitis(2),ampulla infection,hepatic laceration and metastasis(1).normal(8).Conclusions:3D MRSCP is a new,speedy and safe technique,especially when it is hard to show or nearly impossible to diagnose by other examination.It also provides fine morphological details of the bile ducts and cholangiopancreas ducts disease much information.