生理盐水冲洗对MDCT腹主动脉和肾动脉增强效果的影响

发布时间：2018-05-25 10:54

本文选题：生理盐水冲洗 + 对比剂　；参考：《放射学实践》2015年03期

【摘要】：目的:评价不同生理盐水冲洗流率对MDCT腹主动脉和肾动脉增强效果的影响。方法:63例行肾动脉MDCT增强扫描的患者随机分为A、B、C组。A、B、C组均以4mL/s注射60mL碘海醇(350mg I/mL)后,分别以3.0、5.0及7.0mL/s的流率注射50mL生理盐水。测量各组双侧肾动脉的远段、近段和腹主动脉的CT值。不同生理盐水冲洗流率组间腹主动脉及双侧肾动脉强化程度的差异采用单因素方差分析。结果:不同生理盐水冲洗流率组间右肾动脉远段、右肾动脉近段、腹主动脉、左肾动脉近段及左肾动脉远段的平均CT值差异有统计学意义(F=21.1,P0.01;F=24.6,P0.01;F=26.6,P0.01;F=20.2,P0.01;F=16.2,P0.01)。A组各部位CT值与B组及C组差异均有统计学意义(P0.01)。C组各部位CT值与B组间差异无统计学意义(P0.05)。结论:肾动脉MDCT增强扫描注射60mL对比剂后行50mL生理盐水冲洗时,采用5mL/s的冲洗流率,可以实现肾动脉的最大CT增强值。
[Abstract]:Aim: to evaluate the effect of different saline irrigation rates on the enhancement of abdominal aorta and renal artery in MDCT. Methods Sixty-three patients with renal artery MDCT enhanced scanning were randomly divided into two groups: group A, B, C, A, B and C were injected with 60mL iodohexol 350 mg / mL by 4mL/s, and then they were injected with normal saline of 50mL at the flow rate of 3.0 渭 g and 7.0mL/s, respectively. The CT values of the distal, proximal and abdominal aorta were measured. The degree of enhancement of abdominal aorta and bilateral renal artery was analyzed by univariate analysis of variance (ANOVA). Results: the right renal artery, the proximal segment of the right renal artery, and the abdominal aorta were among the groups with different saline irrigation rates. There were significant differences in CT values between the proximal segment of left renal artery and the distal segment of left renal artery. There was no significant difference in CT value between group A and group B and group C. There was no significant difference in CT value between group C and group B (P 0.01). There was no significant difference in CT value between group B and group B (P 0.01). There was no significant difference between group A and group B (P 0.05) in CT value of each part of the left renal artery and the distal segment of left renal artery. There was no significant difference between group A and group B in terms of CT value of each part of the left renal artery and the distal segment of left renal artery. There was no significant difference in CT value between group A and group B (P 0.05). Conclusion: the maximum CT enhancement value of renal artery can be achieved by using the rinsing rate of 5mL/s when the contrast agent of 60mL is injected into the renal artery by MDCT enhanced scan.
【作者单位】：武汉大学人民医院放射科;湖北医药学院附属随州医院放射科;
【分类号】：R816.2

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