|
|
|
| An Analysis of the Relationship Between the Concentration of Contrast Agent and the Quality of Portal Vein CT Images |
| MENG Jingjing, HAN Yaohua, SUN Daming |
| Chaoyang Central Hospital, Liaoning Chaoyang 122000, China |
|
|
|
|
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.
|
|
|
|
|
|
[1] 袁博,李欢送.血栓弹力图在肝硬化脾切除术后预防门静脉血栓中的应用[J].河北医学,2018,24(1):83~86.
[2] 江晓锋,周智洋,柯嘉,等.应用门静脉增强CT静脉成像观察胃结肠静脉干及相关血管解剖变异的研究[J].中华胃肠外科杂志,2019,22(10):990~996.
[3] 任占丽,贺太平,于勇,等.多模型迭代重建在CT门静脉成像中改善图像质量的应用[J].中国医学物理学杂志,2020,37(8),1017~1021.
[4] 张卫国,贾秀琴,蒋涛.低管电压联合高浓度碘对比剂对腹部CT增强图像质量及辐射剂量的影响[J].放射学实践,2019,34(3):311~315.
[5] 王婷婷,曹锋,王裴培,等.能谱CT多参数评估5种浓度碘对比剂对胸主动脉增强效能的研究[J].中国医学装备,2020,17(3):19~22.
[6] 桑长平,吴平.碘对比剂不同流速注射法在CT肺血管成像中的应用[J].武汉大学学报:医学版,2020,41(1):92~95.
[7] 甘淼,刘畅,赵丽,等.CT对比剂急性不良反应的相关因素分析[J].中国医科大学学报,2020,49(5):458~462.
[8] 林坚全,黄冀睿,周海洋.口服稀释后碘对比剂在CT小肠造影中的临床应用价值[J].中国实用医药,2020,15(2):59~61.
[9] 夏振营,丁金立,尹悦,等.BSA指导下不同浓度碘对比剂在肝动脉增强效能中的对比研究[J].CT理论与应用研究,2019,28(3):291~298.
[10] 王威,赵振,秦智,等.不同浓度对比剂对门静脉CT成像效果的对比研究[J].中华放射学杂志,2020,54(5):413~416. |
|
|
|
2021, Vol. 27 
