不同对比剂注射方案对胸痛三联征CT血管成像图像质量的影响  

Effects of different contrast injection schemes on the image quality of triple-rule-out CT angiography

作　　者：卢星如[1] 孟存忠 郑生喜 何勤义 罗天扬 黄宏亮 刘欣然 龚恒鑫 张晓易 雷军强[1] LU Xingru;MENG Cunzhong;ZHENG Shengxi;HE Qinyi;LUO Tianyang;HUANG Hongliang;LIU Xinran;GONG Hengxin;ZHANG Xiaoyi;LEI Junqiang(Department of Radiology,the First Hospital of Lanzhou University,Radiological Clinical Medicine Research Center of Gansu Province,Lanzhou 730000,China;Department of Radiology,Wuwei People’s Hospital,Wuwei,Gansu Province 733000,China;Department of Radiology,Zhangye Second People’s Hospital,Zhangye,Gansu Province 734000,China;Department of Radiology,Tianshui 407 Hospital,Tianshui,Gansu Province 741000,China;Department of Radiology,the First People’s Hospital of Baiyin,Baiyin,Gansu Province 730900,China;the First Clinical Medical College of Lanzhou University,Lanzhou 730000,China)

机构地区：[1]兰州大学第一医院放射科甘肃省放射影像临床医学研究中心,甘肃兰州730000 [2]武威市人民医院放射科,甘肃武威733000 [3]张掖市第二人民医院放射科,甘肃张掖734000 [4]天水407医院放射科,甘肃天水741000 [5]白银市第一人民医院放射科,甘肃白银730900 [6]兰州大学第一临床医学院,甘肃兰州730000

出　　处：《实用放射学杂志》2025年第1期124-128,共5页Journal of Practical Radiology

基　　金：中国红十字基金会“影瑞西北公益行”-ICON科研基金项目(XM_HR_ICON_2021_05)。

摘　　要：目的探讨不同对比剂注射方案对胸痛三联征CT血管成像(TRO-CTA)图像质量的影响。方法前瞻性选取多中心以急性胸痛就诊并行TRO-CTA检查患者691例,根据不同对比剂注射方法随机分为混合组和未混合组。对2组主动脉、肺动脉及冠状动脉图像质量进行主观和客观评价并统计辐射剂量。结果2组间图像质量主观评分,主动脉、冠状动脉CT值、信噪比(SNR)及对比噪声比(CNR)差异无统计学意义(P>0.05),肺动脉CT值、SNR、CNR以及辐射剂量有显著差异(P<0.05)。结论TRO-CTA检查中采用混合对比剂注射方案减少了对比剂用量及辐射剂量,并能获得优质的图像质量,具有临床应用价值。Objective To investigate the effects of different contrast injection schemes on the image quality of triple-rule-out computed tomography angiography(TRO-CTA).Methods A total of 691 patients with acute chest pain who underwent TRO-CTA examination from multiple centers were prospectively selected and randomly divided into mixed group and unmixed group according to different contrast injection methods.The image quality of aorta,pulmonary artery and coronary artery in the two groups was evaluated subjectively and objectively and the radiation dose was calculated.Results There were no significant differences in subjective image quality scores,aorta and coronary CT values,signal-to-noise ratio(SNR)and contrast-to-noise ratio(CNR)between the two groups(P>0.05),while there were significant differences in pulmonary CT values,SNR,CNR and radiation dose between the two groups(P<0.05).Conclusion The utilization of a mixed contrast injection scheme in TRO-CTA can satisfy diagnostic requirements while ensuring a low proportional dosage and reduced radiation dose,which has clinical application value.

关 键 词：对比剂 胸痛 胸痛三联征CT血管成像 

分 类 号：R9811[医药卫生—药品] R569[医药卫生—药学] R814.42