维吾尔族与汉族冠状动脉64层CT影像特征的比较

The comparison of coronary arteries imaging features between Uygur and Han populations in Xinjiang with 64-slice spiral CT

目的分析64层CT冠状动脉成像的表现，评价维吾尔族与汉族在冠状动脉形态的差异。方法回顾性分析88例维吾尔族患者MSCT冠状动脉血管成像资料，并将结果与匹配的88例汉族患者结果进行χ2检验或Wilcoxon配对秩和检验。结果维吾尔族和汉族冠状动脉在以下几个方面的差别具有统计学意义：左冠状动脉开口纵向位于窦内、窦边、窦外分别为62、18、8例和73、14、1例（t=8319，P〈0．05）；右冠状动脉开口纵向位于窦内、窦边、窦外分别为78、7、3例和82、1、1例（t=6936，P〈0．05）；右冠状动脉锐缘支发生率分别为52例（52．09％）和67例（76．13％；χ2=5．8381，P〈0．05）、冠状动脉各种畸形分别为16、6例（χ2=5．1948，P〈0．05）、左冠状动脉各种变异分别为28、49例（t=2692，P〈0．05）、右冠状动脉各种变异分别为33、27例（t=968，P〈0．05）。结论维吾尔族和汉族冠状动脉形态存在多项差异，这些差异一方面可能使两个民族在冠状动脉造影术检查时的表现有所不同；另一方面，可能和两个民族的冠心病发病率及特点不同有一定的关联。

Objective To analyze the imaging findings of coronary angiography using 64-slice row CT and investigate the difference of coronary artery＇s morphological characteristics between Uygur and Han populations. Methods A retrospective study was made to coronary CT angiographie images of 88 Uygur cases matched with 88 Han cases. The data were analyzed with χ2 test and paired Wilcoxon test. Results The coronary CT angiographic findings were different between Uygur population and Han population in the following aspects ：there were 62, 18, and 8 cases with the left coronary artery originating from intra-sinus, para-sinus and extra-sinus location respectively in Uygur population, while there were 73, 14, and 8 cases in Han population respectively（ t = 8319, P 〈 0. 05 ）. And there were 78, 7, and 3 cases with the fight coronary artery originating from intra-sinus, para-sinus and extra-sinus location respectively in Uygur population, while there were 82, 1 and 1 case respectively in Han population （t = 6936,P 〈 0. 05 ）. The incidence of the sharp marginal branch were 52 （ 52. 09% ） and 67 （ 76. 13% ） in the two populations respectively （ χ2 = 5. 8381, P 〈0. 05）. The cases with various malformations of coronary arteries were 16 and 6 cases in the two populations respectively （ χ2 = 5. 1948,P 〈 0. 05 ）. The cases with LCA variations were 28 and 49 cases in the two populations respectively （ t = 2692, P 〈 0. 05 ） and the number with RCA variations were 33 and 27 cases in the two populations respectively （t = 968, P 〈 0. 05 ）. Conclusions There are lots of differences of the coronary artery morphology between the Uygur and Han populations. Firstly, these differences may be related to different patterns in coronary angiography. Secondly, these differences may be related to differences between Uygur and Han populations in the incidence and severity of coronary heart disease.