对比剂注射流率对肝脏普美显增强MRI图像伪影率的影响  

Effect of Contrast Agent Injection Flow Rate on Artifact Rate of Liver Gd-EOB-DTPA Enhanced MRI Images

作　　者：舒学愚 朱晓华 SHU Xueyu;ZHU Xiaohua(Yangxin County People’s Hospital,Yangxin 435200,China)

机构地区：[1]阳新县人民医院,湖北阳新435200

出　　处：《中外医学研究》2020年第7期64-65,共2页CHINESE AND FOREIGN MEDICAL RESEARCH

摘　　要：目的:探讨对比剂注射流率对肝脏普美显增强MRI图像伪影率的影响。方法:选取2017年3月-2019年3月于笔者所在医院就诊的150例肝病患者,采用普美显增强MRI检测肝脏,根据对比剂注射流率分为三组,每组50例,对比剂注射流率分别为1.0、1.5、2.0 ml/s,根据肝脏普美显增强MRI图像结果,统计三组伪影发生比例,计算图像质量得分与伪影图像得分情况。结果:1.0 ml/s组伪影发生率为26.00%,低于1.5 ml/s组与2.0 ml/s组的38.00%、50.00%,差异均有统计学意义(P<0.05);1.0 ml/s组图像质量得分高于1.5 ml/s组与2.0 ml/s组,差异均有统计学意义(P<0.05);1.0 ml/s组伪影图像得分低于1.5 ml/s组与2.0 ml/s组,差异均有统计学意义(P<0.05)。结论:普美显增强MRI检查肝脏时,1.0 ml/s流率注射对比剂能获得较高质量图像,减少伪影发生率。Objective:To investigate the effect of contrast injection flow rate on the artifact rate of liver Gd-EOB-DTPA enhanced MRI images.Method:A total of 150 patients with liver diseases who were treated in the hospital between March 2017 and March 2019 were selected.Their livers were examined with Gd-EOBDTPA enhanced MRI.According to the contrast agent injection flow rate,the patients were divided into three groups,with 50 patients in each group.The contrast agent injection flow rates for the three groups were 1.0,1.5,2.0 ml/s,respectively.According to the liver Gd-EOB-DTPA enhanced MRI images,the incidence of artifacts was statistically analyzed.The image quality score and the artifact image score were calculated.Result:The incidence of artifacts in the 1.0 ml/s group(26.00%)was lower than that in the 1.5 ml/s group and the 2.0 ml/s group(38.00%and 50.00%),the differences were statistically significant(P<0.05).The image quality score of the 1.0ml/s group was higher than that of the 1.5 ml/s group and 2.0 ml/s group,the differences were statistically significant(P<0.05).The artifact image scores of the 1.0 ml/s group were lower than those of the 1.5 ml/s group and 2.0 ml/s group,the differences were statistically significant(P<0.05).Conclusion:Injecting contrast agent at 1.0 ml/s in liver Gd-EOB-DTPA enhanced MRI can obtain relatively higher quality images and reduce the incidence of artifacts.

关 键 词：对比剂注射流率 肝脏 核磁共振 普美显 伪影率 

分 类 号：R445.2[医药卫生—影像医学与核医学] R575[医药卫生—诊断学]