心电编辑对提高双源CT冠脉图像质量的初步研究  

Preliminary application of ECG-editing technique in improving image quality of dual-source CT coronary angiography

作　　者：杨立民[1] 刘成磊[1] 徐凯[2] 

机构地区：[1]江苏省连云港市第二人民医院影像科,江苏连云港222023 [2]徐州医学院附属医院影像科,江苏徐州221001

出　　处：《医学影像学杂志》2012年第2期182-185,共4页Journal of Medical Imaging

摘　　要：目的:探讨心电编辑在改善双源CT冠脉图像质量中的作用。方法:以冠脉分支为单位,回顾性分析60例心率变异过大或心律失常患者双源CT冠脉成像编辑前后的图像质量,总结不同类型的心电编辑方法。结果:60例心率变异过大或心律失常患者,心率范围为55～269次/min,平均心率(92.8±31.9)次/min,冠脉图像编辑前后的图像质量总评分分别为2.26±1.03、3.5±0.61(t=-17.85,P=0.001);表明编辑前后图像质量的评分有统计学意义,编辑后图像质量明显改善。结论:心电编辑技术可以明显改善心率变异过大或心律失常患者双源CT冠脉成像的图像质量。Objective:To evaluate the effect of ECG-editing technique on dual-source CT coronary angiography.Methods:Based on per-segment analysis,image quality before and after ECG editing were retrospectively analyzed in 60 patients with heart rate variability or arrhythmia.Different types of ECG editing methods were summarized.Results:In 60 patients without stable sinus rhythm,the heart rate was(55～269) bpm/min,and mean heart rate was(92.8±31.9) bpm/min.The over all mean image quality scores before and after ECG editing were(2.26±1.03) and(3.50±0.61),respectively.There was statistical difference in pre-editing and post-editing reconstructed images quality,suggesting ECG editing significantly improving the image quality(P<0.01).Conclusion:ECG editing technique significantly improves image quality of coronary artery in patients with heart rate variability or arrhythmia.

关 键 词：双源CT 冠脉成像 心电编辑 

分 类 号：R81[医药卫生—放射医学]