对比剂分次团注在CT门静脉成像中的应用价值
王延春;祝则峰;吴燕萍;黄益隽;董雪;张灵飞
【期刊名称】《中国生化药物杂志》 【年(卷),期】2017(000)005
【摘要】Objective To investigate the value of fractional contrast medium bolus injection in improving the quality of CT portography.MethodsA total of 42 patients were randomly divided into two groups which were all given iohexol (350mgI/mL) as the contrast medium.20 patients in the group A were injected with conventional method (dosage of 100ml, rate of 4mL/s).The group B (22 patients) were treated with fractional contrast medium bolus injection, the first phase with 60mL contrast medium (rate of 4mL/s) and the second phase (10s delayed) with 40mL contrast medium (rate of 4m/s).The tube was washed by 20mL saline with the same rate of injection at both phases.The CT values and the image quality of the branches of the portal vein were evaluated according to the original and postprocessed images.Independent samples test was used to compare the CT values of the portal vein, splenic vein, superior mesenteric
vein,
hepatic
parenchyma
and
portal
vein-liver
parenchyma.The subjective evaluation scores of the image quality were compared by wilcoxon.ResultsThe CT values of the portal vein, splenic vein and portal vein-liver parenchyma in the group B were significantly higher than that in the group A (t=3.317,3.523,P<0.01).There was no
对比剂分次团注在CT门静脉成像中的应用价值
