The scaning seguencese included T1WIT2WIFT1WI and postenhancement FMPSPGR and MRCP. The MR findings were retrospectively reviewed.

• 应用GESigna1.；5T超导MR机，除常规的T1WI、T2WI序列外，还采用FT1WI和FMPSPGR造影增强及MRCP技术。