3T超高场磁共振胆胰管成像技术及临床应用

MR cholangiopancrcatography and its clinical application

目的:应用3.0T超高场2DMRCP、3DMRCP磁共振胆胰管成像,比较两种不同成像方法的图像质量及其临床应用价值.方法:对80例受检者进行胆系冠、轴位相自旋回波脉冲序列常规扫描(T1WI、T2WI、FST2)和冠状位2DMRCP、3DMRCP;对两种不同MRCP显示胆胰管系进行比较.结果:2DMRCP、3DMRCP胆囊、胆囊管、胆总管及1～3级肝内胆管的显示率为100%;2DMRCP 4级肝内胆管为92.5%,5级肝内胆管为77.5%,胰管为90%,副胰管为11.25%;3DMRCP 4级肝内胆管为85%,5级肝内胆管为70%,胰管为87.5%,副胰管为6.25%.结论:3.0T超高场屏气2DMRCP、呼吸门控3DMRCP可以清晰的显示胆胰管,二者结合可提高病变的检出率,具有很高的临床应用价值.

Objective ：To compare 2DMRCP and 3DMRCP and It＇s clinical application. Methods ：Elghty patients underwent 2D and 3D MRCP with 3.0T MR. Routine axial and coronal sDin echo pulse sequence were performed at the same time. The ability of these two different techniques to depict the bile duct and pancreatic duct were compared. Results：Gallblader, cystic duct,three grade hepatic duct and common bile duct were shown both in 2D and In 3D MRCP 100%. 4th grade hepatic duct 92.5%, 5th grade hepatic duct 77.5%, pancreatic duct 90% and accessory pancreatic duct 11.25% were shown in 2D MRCP while the corresponding display rate were 85%,70%,87.5% and 6.25% respectively in 3D MRCP. Conelusion： Breath-hold 2D MRCP and breath-control 3D MRCP in 3.0T is an efficient technique to depict biliary system and pancreatic duct. Combining 2D with 3D MRCP will improve the ability display of bile duct and pancreatic duct.