常规剂量对比剂肺动脉CT血管造影与低剂量对比剂肺动脉CT血管造影在急性肺动脉栓塞诊断中的应用价值比较  

Comparison of Application Value of Conventional-Dose Contrast Agent Pulmonary Artery CT Angiography versus Low-Dose Contrast Agent Pulmonary Artery CT Angiography in Diagnosis of Acute Pulmonary Embolism

作　　者：陈昌洋 邓成清 朱玲玲 Chen Changyang;Deng Chengqing;Zhu Lingling(Sheyang County People's Hospital in Yancheng City,Yancheng 224300,Jiangsu Province,China)

机构地区：[1]盐城市射阳县人民医院,江苏盐城224300

出　　处：《中国社区医师》2025年第4期87-89,共3页Chinese Community Doctors

摘　　要：目的:比较常规剂量对比剂肺动脉CT血管造影(CTA)与低剂量对比剂肺动脉CTA在急性肺动脉栓塞诊断中的应用价值。方法:选取2021年1月—2023年10月盐城市射阳县人民医院收治的急性肺动脉栓塞患者98例作为研究对象,均接受常规剂量对比剂肺动脉CTA与低剂量对比剂肺动脉CTA。对比不同剂量对比剂肺动脉CTA诊断急性肺动脉栓塞的价值。结果:常规剂量对比剂肺动脉CTA与低剂量对比剂肺动脉CTA图像质量评分比较,无统计学差异(P>0.05);低剂量对比剂肺动脉CTA上腔静脉评分高于常规剂量对比剂肺动脉CTA(P<0.001)。低剂量对比剂肺动脉CTA背景噪声高于常规剂量对比剂肺动脉CTA,信噪比、对比噪声比、剂量长度乘积低于常规剂量对比剂肺动脉CTA(P<0.001)。低剂量对比剂肺动脉CTA肺动脉干、右下肺动脉、左下肺动脉、肺静脉CT值小于常规剂量对比剂肺动脉CTA(P<0.001)。结论:低剂量对比剂肺动脉CTA在急性肺动脉栓塞诊断中的应用价值较高,可提高上腔静脉评分,优化影像学检查定量参数、CT值。Objective:To compare the application value of conventional-dose contrast agent pulmonary artery CT angiography(CTA)versus low-dose contrast agent pulmonary artery CTA in the diagnosis of acute pulmonary embolism.Methods:A total of 98 patients with acute pulmonary embolism admitted to Sheyang County People's Hospital in Yancheng City from January 2021 to October 2023 were selected as the study subjects.All patients underwent conventional-dose contrast agent pulmonary artery CTA and low-dose contrast agent pulmonary artery CTA.The value of pulmonary artery CTA at different doses of contrast agent in the diagnosis of acute pulmonary embolism was compared.Results:There was no statistically significant difference in the image quality score between conventional-dose contrast agent pulmonary artery CTA and low-dose contrast agent pulmonary artery CTA(P>0.05).The upper vena cava score of low-dose contrast agent pulmonary artery CTA was higher than that of conventional-dose contrast agent pulmonary artery CTA(P<0.001).The background noise of low-dose contrast agent pulmonary artery CTA was higher than that of conventional-dose contrast agent pulmonary artery CTA,and the signal-to-noise ratio,contrast-to-noise ratio and dose-length product of low-dose contrast agent pulmonary artery CTA were lower than those of conventional-dose contrast agent pulmonary artery CTA(P<0.001).The CT values of pulmonary artery trunk,right lower pulmonary artery,left lower pulmonary artery and pulmonary vein of low-dose contrast agent pulmonary artery CTA were lower than those of conventionaldose contrast agent pulmonary artery CTA(P<0.001).Conclusion:Low-dose contrast agent pulmonary artery CTA has high application value in the diagnosis of acute pulmonary embolism,which can increase the score of superior vena cava and optimize the imaging examination quantitative parameters and CT value.

关 键 词：急性肺动脉栓塞 对比剂 肺动脉 CT血管造影 

分 类 号：R445.3[医药卫生—影像医学与核医学]