两种注射速度对钆塞酸二钠磁共振肝脏动态增强动脉期图像质量的影响

发布时间：2018-03-02 04:33

本文关键词： 动脉期钆塞酸二钠信噪比强化率注射速度　出处：《第三军医大学学报》2015年17期 　论文类型：期刊论文

【摘要】：目的比较两种注射速度(1、1.5 m L/s)钆塞酸二钠(Gadolinium ethoxybenzyl diethylenetriaminepentaacetic acid,Gd-EOB-DTPA)增强磁共振(magnetic resonance,MR)肝脏动态增强动脉期图像质量的优劣性。方法回顾性评估本院2012年12月至2013年9月接受Gd-EOB-DTPA肝脏MR动态增强检查的患者106例,包括注射速度为1 m L/s患者52例,1.5 m L/s患者54例,对动脉期增强图像进行评估。由2名副高以上诊断医师定量评估所有患者肝脏动脉期腹主动脉、肝总动脉、肝脏实质的信噪比(signal noise ratio,SNR)和强化率(contrast-enhancement ratio,CER)的差异性,定性评估腹主动脉、肝总动脉、肝脏实质、门静脉和图像伪影5个项目得分和总分的差异性。结果 Gd-EOB-DTPA注射速度为1 m L/s组和1.5 m L/s组各部分SNR和CER差异无统计学意义(P0.05),1 m L/s组腹主动脉、肝总动脉强化评分和总分均高于1.5 m L/s组(P0.05)。结论 Gd-EOB-DTPA注射速度为1 m L/s的肝脏动脉期图像质量优于注射速度为1.5 m L/s的肝脏动脉期图像质量。
[Abstract]:Objective to compare the advantages and disadvantages of Gadolinium ethoxybenzyl diethylenetriaminepentaacetic acidinium diethylenetriaminepentaacetic Gd-EOB-DTPA-enhanced magnetic resonance imaging (MRI) in dynamic contrast-enhanced arterial phase images of the liver at two injection speeds of 1.5 mL / s. Methods from December 2012 to September 2013, we retrospectively evaluated the quality of hepatic Gd-EOB-DTPA in our hospital. There were 106 patients with dynamic contrast-enhanced Mr imaging. Including 52 patients with 1 mL / s injection rate and 54 patients with 1.5 mL / s, the arterial phase enhancement images were evaluated by two diagnostic physicians with subtropical height, and the abdominal aorta and common hepatic artery were quantitatively evaluated by 2 diagnostic physicians in the hepatic artery phase. The signal-to-noise ratio (SNR) of hepatic parenchyma (SNR) and contrast-enhancement-enhanced ratio (CER) were compared to evaluate the abdominal aorta, common hepatic artery, hepatic parenchyma, and liver parenchyma. Results there was no significant difference in SNR and CER between the 1 mL / s group and 1.5 mL / s group in Gd-EOB-DTPA injection velocity, and there was no significant difference in the abdominal aorta between the 1 mL / s group and the 1.5 mL / s group. The enhancement score and total score of common hepatic artery were higher than that of 1.5 mL / s group (P 0.05). Conclusion the image quality of hepatic artery phase with Gd-EOB-DTPA injection velocity of 1 mL / s is superior to that of 1.5 mL / s group.
【作者单位】：第三军医大学西南医院放射科;
【分类号】：R445.2;R575

【参考文献】