Abstract：Objective: To explore the relationship between different contrast agent concentrations and the quality of CT images of the portal vein of patients. Methods: A total of 90 patients who underwent CTPV in our hospital from December 2019 to December 2020 were selected. According to the random number method, the patients were divided into an observation group and a control group, 45 cases in each. The observation group was a high-concentration contrast agent group, using 350 mg /ml concentration of iodine contrast agent; the control group was a low concentration contrast agent group, using 300mg/ml concentration of iodine contrast agent. The patients were subjected to portal vein CT imaging, and the CT value, signal-to-noise ratio, imaging quality and occurrence of adverse reactions were analyzed in the two groups . Results: The CT values of the main portal vein, the left portal vein and the right portal vein in the observation group were higher than those in the control group, and the difference was statistically significant (P<0.05); the SNR and CNR signal-to-noise ratios of the observation group were different from those in the control group. There was no significant difference (P>0.05); the observation group had more cases with higher image scores than the control group, and the difference between the two groups was statistically significant (P<0.05); the incidence of adverse reactions in the observation group was 11.1%, slightly higher, compared with 6.7% of the control group, the difference is not statistically significant (P>0.05). Conclusion: The use of high-concentration contrast agent for CTPV imaging can effectively improve the imaging quality of the image, and will not increase the incidence of adverse reactions, which is worthy of clinical promotion.
孟晶晶, 韩耀华, 孙大明. 对比剂浓度和患者门静脉CT影像质量的关系分析[J]. 河北医学, 2021, 27(9): 1486-1489.
MENG Jingjing, HAN Yaohua, SUN Daming. An Analysis of the Relationship Between the Concentration of Contrast Agent and the Quality of Portal Vein CT Images. HeBei Med, 2021, 27(9): 1486-1489.
2021, Vol. 27 
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