低流速、低对比剂注射方案在老年患者肺动脉CTA检查中的应用价值  

Value of low-flow rate and-contrast injection scheme for pulmonary artery computed tomography angiography of elderly patients

作　　者：江月 许敏[1] 孙航航 孙美荣[1] 胡秋菊 赵艳娥 金东生[1] JIANG Yue;XU Min;SUN Hang-hang;SUN Mei-rong;HU Qiu-ju;ZHAO Yan-e;JIN Dong-sheng(Department of Radiology,Jiangsu Province Official Hospital,Nanjing 210029,China)

机构地区：[1]江苏省省级机关医院放射科,南京210029

出　　处：《医疗卫生装备》2024年第10期66-70,共5页Chinese Medical Equipment Journal

基　　金：江苏省重点研发计划(社会发展)-面上项目(BE2020714);南京医科大学“十二五”教育研究课题(NY 2222015038);南京医科大学2021校级教育研究课题(2021ZC062)。

摘　　要：目的:探讨低流速、低对比剂注射方案在老年患者肺动脉CT血管造影(computedtomographyangiography,CTA)检查中的应用价值。方法:选取2020年4月至2023年1月于某院接受肺动脉CTA检查的60例老年患者,根据对比剂注射方案的不同,将患者分为对照组(30例)和实验组(30例)。对照组采用常规对比剂注射方案,实验组采用低流速、低对比剂的优化对比剂注射方案。观察2组患者的肺动脉强化程度、肺动脉主干和分支的显示情况以及图像血管边缘的锐利程度、上腔静脉对比剂硬化伪影程度并进行主观评分,对2组患者的肺动脉干、左肺静脉及右肺静脉的强化CT值进行客观评价,记录2组患者对比剂外渗情况。采用SPSS25.0软件进行统计学分析。结果:2组肺动脉CTA图像质量评分比较差异无统计学意义(P>0.05);实验组上腔静脉对比剂硬化伪影评分低于对照组,差异有统计学意义(P<0.05)。2组图像的肺动脉干、左肺静脉及右肺静脉CT值比较差异无统计学意义(P>0.05)。实验组未出现对比剂外渗患者;对照组出现1例严重外渗患者,4例轻、中度外渗患者。结论:在老年患者行肺动脉CTA检查时采用低流速、低对比剂注射方案能够在保证图像质量的前提下避免对比剂外渗,提升了患者的就医体验和安全性。Objective To explore the application value of low-flow rate and-contrast injection scheme for pulmonary artery computed tomography angiography(CTA)in the elderly patients.Methods Sixty elderly patients undergoing pulmonary artery CTA in some hospital from April 2020 to January 2023 were selected and divided into a control group(30 cases)and an experimental group(30 cases)according to the contrast agent injection schemes.A conventional contrast injection scheme was used for the control group,and an optimized contrast injection scheme with low flow rate and low contrast dose was designed for the experimental group.The two gorups were observed and subjectively scored in terms of the degree of pulmonary artery enhancement,the display of pulmonary artery trunks and branches and the sharpness of image vessel edges,and objectively evaluated for the degree of contrast sclerosis artifacts in the superior vena cava and the enhancement CT values of the pulmonary artery trunks and the left and the right pulmonary veins.The extravasation of the contrast agent was recorded for the patients in the 2 groups.SPSS 25.0 software was used for statistical analysis.Results The two groups had no significant differences in score pulmonary artery CTA image quality(P>0.05);the experimental group had the socre of contrast sclerosis artifacts in the superior vena cava statistically lower than that of the control group(P<0.05).The two groups had no obvious differences in the CT values of the pulmonary artery trunks and the left and the right pulmonary veins(P>0.05).There were no patients with the extravasation of the contrast agent found in the experimental group,while there one case with severe extravasation and 4 cases with mild or moderate extravasation in the control group.Conclusion Low-flow rate and-contrast injection scheme for pulmonary artery CTA of the elderly patients contributes to avoiding contrast agent extrava-sation while ensuring image quality,enhancing patient experience and safety.

关 键 词：低对比剂 低流速 对比剂注射方案 肺动脉CTA 老年患者 

分 类 号：R318[医药卫生—生物医学工程] R184.2[医药卫生—基础医学]