【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。更多还原

【Abstract】 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.更多还原