摘要
目的 探讨西门子Force双源CT在冠脉成像中的影响因素和解决方案。方法分析2 021年6月至2022年6月的冠脉CT影像学数据,随机抽取50位在西门子Force双源CT行冠脉CTA的患者作为对照组,观察组则由另50位改进扫描方案后进行检查的患者组成,对两组患者的冠脉成像合格率和图像质量进行比较,以及评估冠脉主要分支的信噪比,对比噪声比。结果 冠脉成像观察组的合格率98.7%大于对照组9 7.5%,观察组冠脉主要分支的信噪比均高于对照组,差异具有统计学意义(t=3.472,4.127,5.135, 2.205,4.546,3.722,2.544,2.771,P均<0.05)观察组冠脉主要分支的对比噪声比均高于对照组,差异具有统计学意义(t=2.164,2.986,6.341,3.085,3.272,2.713,3.520,2.835,P均<0.05)。结论 通过分析西门子Force双源CT冠脉成像的不利影响因素并改进扫描方案,可以有效提高冠脉CTA的图像质量,为临床提供了更可靠的依据。
Objective To investigate the influencing factors and solutions of coronary artery imaging using Siemens Force dual-source CT.Methods The coronary CT imaging data from June 2021 to June 2022 were analyzed.Fifty patients who underwent coronary CTA on Siemens Force dual-source CT were randomly selected as the control group,and the observation group was composed of another 50 patients who underwent the examination after the improved scanning protocol.The signal-to-noise ratio(SNR)and contrast-to-noise ratio(CNR)of major coronary branches were evaluated.Results The qualified rate of coronary artery imaging in the observation group was 98.7%,which was higher than 97.5%in the control group.The signal-to-noise ratio of the main coronary branches in the observation group was higher than that in the control group,and the difference was statistically significant(t=3.472,4.127,5.135,2.205,4.546,3.722,2.544,2.771,P<0.05).All P<0.05).The contrast noise ratios of the main coronary branches in the observation group were higher than those in the control group,and the differences were statistically significant(t=2.164,2.986,6.341,3.085,3.272,2.713,3.520,2.835,all P<0.05).Conclusion By analyzing the adverse factors of Siemens Force dual-source CT coronary angiography and modifying the scanning protocol,the image quality of coronary CTA can be effectively improved,which provides a more reliable basis for clinical practice.
作者
罗娜
贺露瑶
田祥洁
欧阳佳裕
LUO Na;HE Lu-yao;TIAN Xiang-jie;OUYANG Jia-yu(Department of Radiology,the Third Affiliated Hospital of Sun Yat-sen University,Guangzhou 510000,Guangdong Province,China)
出处
《中国CT和MRI杂志》
2024年第3期68-70,共3页
Chinese Journal of CT and MRI
关键词
计算机断层成像
冠脉成像
双源
Computed Tomography Imaging
Coronary Artery Imaging
Dual Source
