摘要
Abstract
Objective To study the image quality of three-dimensional gradient spin echo(3D-BH-GraSE-MRCP)and three-dimensional volumetric scan based on compressed sensing technology(3D-CS-MRCP)in magnetic resonance cholangiopancreatography(MRCP).Methods A retrospective analysis was performed on 81 patients who underwent MRCP examination in Sun Yat-sen Memorial Hospital,Sun Yat-sen University from July 2023 to November 2023,and 3D-BH-GraSE-MRCP sequence and 3D-CS-MRCP sequence were used to scan the same patient.Image contrast noise ratio(CNR),signal-to-noise ratio(SNR)and scanning time in common bile duct,pancreatic duct,cholecystic duct,hepatic duct and secondary bile duct were analyzed and compared according to the obtained images.The image quality of gallbladder,cholecystic duct,common bile duct,pancreatic duct and hepatic duct were subjectively scored.Results The scanning time of 3D-BH-GraSE-MRCP and 3D-CS-MRCP sequences was equal(P>0.05).There was no significant difference in CNR and SNR of common bile duct,cholecystic duct and hepatic duct between the two images.The CNR(19.73,13.71)and SNR(27.19,18.52)of pancreatic duct and secondary bile duct in 3D-BH-GraSE-MRCP sequence image were higher than those in 3D-CS-MRCPsequence image(11.60,8.76)and SNR(15.23,12.28)(P<0.05).3D-BH-GraSE-MRCP se-quence in the gallbladder,cystic duct,common bile duct,the overall image quality rating of intrahe-patic duct,background suppression effect and image pseudo reviews points(4.32,4.46,4.46,4.56,4.79,4.83)were higher than 3D-CS-MRCP sequence(3.65,3.79,4.12,4.16,4.48,4.31)(P<0.05).Conclusion Compared with 3D-CS-MRCP sequence,3D-BH-GraSE-MRCP sequence has better image quality and no difference in scanning time in MRCP inspection.关键词
磁共振胰胆管成像/梯度自旋回波/压缩感知Key words
magnetic resonance cholangiopancreatography/gradient spin echo/compressed sensing分类
临床医学
