钆贝葡胺增强后MR胰胆管成像检查时间的探讨  

Study on the examination time of MR cholangiopancreatography after Gd-BOPTA enhancement

作　　者：张子东 曹沛彩 赵洪全 崔巍 ZHANG Zidong;CAO Peicai;ZHAO Hongquan;CUI Wei(Department of Radiology,Yantai Yeda Hospital,Yantai,Shandong Province 264006,China)

机构地区：[1]烟台业达医院影像科,山东烟台264006

出　　处：《实用放射学杂志》2024年第9期1541-1544,共4页Journal of Practical Radiology

摘　　要：目的 探讨钆贝葡胺(Gd-BOPTA)增强后进行磁共振胰胆管成像(MRCP)检查对胰胆管清晰度的影响及增强后MRCP检查的合理时间.方法 由2名医师对124例Gd-BOPTA增强后的MRCP图像质量进行回顾性评价,从图片存储与传输系统(PACS)获取MRCP检查的间隔时间(动脉期开始到MRCP图像获得的时间),采用方差分析胰胆管影像质量评级与间隔时间的关系,推算MRCP检查的合理时间.结果 Gd-BOPTA增强后MRCP肝内外胆管图像不同评级的间隔时间有明显差异(P<0.05),胆管图像质量随间隔时间的延长而降低,胰管图像不同评级的间隔时间无明显差异(P>0.05).肝内胆管评级清晰的间隔时间平均为(9.9±3.1)min,95%置信区间(CI)9.2~10.6 min.结论 Gd-BOPTA增强后进行MRCP检查胆管清晰度逐渐降低,胰管清晰度无改变;MRCP检查在动脉期开始后10.6 min内完成,对控制图像质量有重要意义.Objective To investigate the effect of magnetic resonance cholangiopancreatography(MRCP)after Gd-BOPTA enhancement to clearly show the pancreaticobiliary duct,and to explore the reasonable time of MRCP examination after enhance-ment.Methods The quality of MRCP images in 124 patients after Gd-BOPTA enhancement was retrospectively evaluated by two physicians.The interval time of MRCP examination from the beginning of arterial phase to MRCP acquisition was obtained from pic-ture archiving and communication system(PACS),and the relationship between the image quality grade of pancreaticobiliary duct and the interval time was analyzed by ANOVA.Then the reasonable examination time of MRCP was calculated.Results After Gd-BOPTA enhancement,there was a significant difference in the interval time between different grades of intrahepatic and extrahepatic bile ducts on MRCP images(P<0.05).The image quality of bile duct decreased with the increasing interval time,however,there was no sig-nificant difference in the interval time between different grades of pancreatic duct(P>0.05).The mean interval time of clear grade of intra-hepatic bile duct was(9.9±3.1)min,and the 95%confidence interval(CI)was 9.2-10.6 min.Conclusion The clarity of the bile ducts on MRCP is gradually decreased after Gd-BOPTA enhancement,while no change in that of the pancreatic duct.The MRCP examination should be completed within 10.6 min after the arterial phase beginning,which is of great significance for controlling image quality.

关 键 词：钆贝葡胺 磁共振胰胆管成像 间隔时间 图像质量 

分 类 号：R9811[医药卫生—药品] R445.2[医药卫生—药学]