Comparison on image quality of 3.0T and 5.0T MR cholangiopancreatography
Objective To compare image quality of 3.0T and 5.0T MR cholangiopancreatography(MRCP).Methods Eighteen patients with bile duct dilation(bile duct dilation group)and 7 healthy volunteers(healthy group)were prospectively enrolled.MRCP was performed with 3.0T and 5.0T scanners,respectively,and the ability for displaying details of bile duct tree,signal-to-noise ratio(SNR)and image artifacts were compared between 3.0T and 5.0T MRCP.Results In bile duct dilation group,the number of branches,total branch length and the maximum branch length of bile duct tree on 5.0T MRCP were all greater than those on 3.0T MRCP(all P＜0.05).In healthy group,the number of branches and total branch length of bile duct tree on 5.0T MRCP were both greater than those on 3.0T MRCP(both P＜0.05).In both groups,the SNR of 5.0T MRCP was greater than that of 3.0T MRCP,but the difference was not significant(both P＞0.05).No significant difference of image artifacts was found between 3.0T and 5.0T MRCP(P=0.054).Conclusion 5.0T MRCP might display better anatomical details of bile duct tree than 3.0T MRCP,with SNR and image artifacts comparable to 3.0T MRCP.
万方数据
维普
