不同对比剂注射流率对肝脏普美显增强MRI动脉期伪影及整体图像质量的影响  

Effect of Different Injection Flow Rates of Contrast Agents on Arterial Phase Artifacts and Overall Image Quality of Gd-EOB-DTPA Enhanced Liver MRI

作　　者：柴蓉静 龚万庆[1] 鄢广平 刘洪涛 陈荣 CHAI Rong-jing;GONG Wan-qing;YAN Guang-ping;LIU Hong-tao;CHEN Rong(Department of Radiology,the People's Hospital of China Three Gorges University·the FirstPeople's Hospital of Yichang,Yichang 443000,Hubei Province,China;Department of Radiology,Yichang Xiling Hospital,Yichang 443000,Hubei Province,China;Department of Radiology,Yichang Traditional Chinese Medicine Hospital,Yichang 443000,Hubei Province,China)

机构地区：[1]三峡大学人民医院·宜昌第一人民医院放射科,湖北宜昌443000 [2]宜昌市西陵医院放射科,湖北宜昌443000 [3]宜昌市中医医院放射科,湖北宜昌443000

出　　处：《中国CT和MRI杂志》2021年第8期101-103,共3页Chinese Journal of CT and MRI

基　　金：湖北省自然科学基金(2016CKB876)。

摘　　要：目的探讨不同对比剂注射流率对肝脏普美显增强MRI动脉期伪影及整体图像质量的影响。方法选取在我院进行肝脏普美显检查的患者60例为研究对象,采用随机数表法分为三组各20例,分别给予1.0、1.5、2.0mL/s三种对比剂注射流率,比较三组不同速率对肝动脉伪影及整体图像质量的影响。结果1.0mL/s组伪影发生率显著优于1.5mL/s组、2.0mL/s组(P<0.05);在进行普美显检查后发现1.0mL/s组、1.5mL/s组图像质量评分分别为(16.54±1.32)分、(16.38±1.25)分,显著优于2.0mL/s组[(11.49±1.27)分,P<0.05];1.0mL/s组、1.5mL/s组均未出现恶心、皮疹、呕吐、热感、头痛等不良反应,但2.0mL/s组中出现恶心、呕吐各1例,2.0mL/s组不良反应发生率显著高于1.0mL/s组、1.5mL/s组(P<0.05)。结论在肝脏普美显增强MRI检查中,1.0mL/s组、1.5mL/s组所得图像质量显著优于2.0mL/s组,1.0mL/s组在动脉期伪影发生率最低,提示在注射对比剂时采集肝动脉图像时,采用1.0mL/s的流率能得到优质图像,安全性较高,值得在临床上推广应用。Objective To investigate the effect of different injection flow rates of contrast agents on arterial phase artifacts and overall image quality of Gd-EOB-DTPA enhanced liver MRI.Methods 60 patients who underwent liver Gd-EOB-DTPA examination in the hospital were selected as subjects.They were divided into three groups by the random number table method with 20 patients in each group.They were respectively treated with 1.0mL/s,1.5mL/s and 2.0mL/s three injection flow rates of contrast agents.Effects of three different rates on hepatic artery artifacts and overall image quality were compared among the three groups.Results The incidence of artifacts in the 1.0 mL/s group was significantly better than that in the 1.5 mL/s group or the 2.0 mL/s group(P<0.05).Gd-EOB-DTPA examination found that image quality scores of the 1.0 mL/s group and the 1.5 mL/s group[(16.54±1.32)points and(16.38±1.25)points]were significantly better than that of the 2.0mL/s group[(11.49±1.27)points,P<0.05].There were no adverse reactions such as nausea,rash,vomiting,heat,and headache in the 1.0mL/s group or the 1.5mL/s group.However,there was 1 case of nausea and vomiting in the 2.0 mL/s group.The incidence of adverse reactions in the 2.0 mL/s group was significantly higher than that in the 1.0 mL/s group or the 1.5.mL/s group(P<0.05).Conclusion In Gd-EOB-DTPA enhanced liver MRI,the image quality of the 1.0mL/s group,and the 1.5mL/s group is significantly better than that of the 2.0mL/s group.The incidence of artifacts in the arterial phase is the lowest in the 1.0mL/s group,suggesting that 1.0mL/s flow rate can obtain high-quality image,with high safety.

关 键 词：注射流率 肝脏 普美显 MRI动脉期伪影 图像质量 

分 类 号：R333.4[医药卫生—人体生理学]