中图分类号：R814.42；R541.7+5

    文献标识码：A

    文章编号：1009_816X(2011) 05_0347_03

    DOI:10.3969/j.issn.1009_816X.2011.05.06

    Application of ECG Editing in Dual_source CT Coronary Angiography in Patients wi th Atrial Fibrillation.ZHANG Jian_jun, MOU Cai_yun, XU Xiao_bing, et al. Department of Radiology, Zheji ang Hospital, Zhejiang 310013, China

    [Abstract] Objective To investigate the value of ECG editing i n dual_source CT coronary angiography in patients with atrial fibrillation(Af).Methods 38 patie nts with Af underwent dual_source CT coronary angiography. The ECG editing techn ique was applied to get the processing and reconstruction of image. The coronaryimaging before and after ECG_editing was evaluated with four_score method andthe significant difference was compared.Results In 38 patients of Af, a totalof 494 coronary artery segments were evaluated after ECG_editing. Among of them , 179(36.22%) segments were evaluated score 4, 161(32.63%) segments were evalu a ted score 3, 107(21.71%) segments were evaluated score 2 and 47(10%) segments w ere evaluated score 1. The average score of before ECG_editing was(2.49±0.57) , and the average score of after ECG_editing group was(3.34±0.47). The diffe rence between two groups was significant(P<0.01).Conclusions ECG editing technique can effectively improve the im age quality of dual_source CT coronary angiography in patients with Af. ......