冠状动脉CT血管造影检查对比剂外渗危险因素分析

Analysis of risk factors for contrast agent extravasation in coronary CT angiography

目的:分析冠状动脉CT血管造影(CTA)检查对比剂注射外渗的影响因素并制定干预措施。方法:回顾性选取2023年1-12月在北京大学人民医院行冠状动脉CTA检查的583例患者资料,采用logistic回归分析对患者一般资料、注射方案等进行分析,确定对比剂注射外渗危险因素。结果:纳入的583例患者中,11例患者CTA检查时出现对比剂外渗,外渗发生率为1.887%,对比剂全部外渗到皮下组织,CT值均未到达触发标准。患者性别、文化程度、糖尿病、静脉化疗史、年龄、体重、体质量指数(BMI)、注射速率和注射剂量均与对比剂外渗发生有关,差异均有统计学意义(x~2=18.911、7.563、16.567、4.279,t=3.576、3.244、1.865、4.297、6.532,P<0.05)。患者年龄、文化程度、静脉化疗史、糖尿病、注射速率及注射剂量为冠状动脉CTA检查对比剂注射外渗的危险因素(OR=1.008、1.372、1.029、5.092、0.975、1.421,P<0.05)。结论:文化程度低、高龄、静脉化疗史、高速率及大剂量等因素可增加冠状动脉CTA检查对比剂注射外渗发生风险,放射科工作人员应密切关注高风险患者,加强冠状动脉CTA检查对比剂静脉注射监测,减少对比剂外渗发生。

Objective:To analyze the influencing factors of contrast agent extravasation in coronary CT angiography(CTA)examination,and to formulate intervention measures.Methods:A retrospective selection of data from 583 patients who underwent coronary CTA at Peking University People's Hospital from January to December 2023 was conducted.Logistic regression was used to analyze the patients'general information and injection protocols,and the risk factors of contrast agent extravasation were determined.Results:Among the 583 patients included,11 patients had contrast agent extravasation during CTA examination,with an extravasation rate of 1.887%.The contrast agent was all extravasated into the subcutaneous tissue,and the CT value did not reach the trigger criteria.Gender,education level,diabetes mellitus,history of intravenous chemotherapy,age,weight,body mass index(BMI),injection rate and injection dose were all associated with the occurrence of contrast agent extravasation,the difference was statistically significant(x2=18.911,7.563,16.567,4.279,t=3.576,3.244,1.865,4.297,6.532,P<0.05).Age,education level,history of intravenous chemotherapy,diabetes mellitus,injection rate and injection dose were risk factors for contrast agent extravasation in coronary CTA(OR=1.008,1.372,1.029,5.092,0.975,1.421,P<0.05).Conclusion:Factors such as low education level,advanced age,history of intravenous chemotherapy,high injection rate and large injection dose can increase the risk of contrast agent extravasation in coronary CTA examination.Radiology staff should closely monitor high-risk patients,strengthen monitoring of intravenous injection of contrast agents for coronary CTA examination,and reduce the occurrence of contrast agent extravasation.