64层螺旋CT评价维吾尔、汉两民族各支冠状动脉心肌桥的发生率

Evaluation of incidence of coronary myocardial bridge in the Uyghur and Han peoples with 64-slice CT

目的分析64层螺旋CT对维吾尔、汉两民族心肌桥(MB)的检出率。方法1350例患者接受64层螺旋CT冠状动脉血管成像检查,341例诊断为MB,其中汉族260例,维吾尔族70例,回族7例,哈萨克族4例。计算64层螺旋CT对维吾尔、汉两民族MB的检出率,并对两民族的左前降支(LAD)近段、中段、远段、第一对角支(D1)、第二对角支(D2)、钝缘支(OM)、左回旋支(LCX)以及右冠状动脉(RCA)MB的发生率进行χ2检验。结果64层螺旋CT显示341例MB共439支血管走行在心肌内,其中汉族332支,维吾尔族92支,回族9支,哈萨克族6支;维吾尔、汉两民族各冠状动脉MB的发生率(包括LAD近段、中段、远段、D1、D2、OM、LCX、RCA)差异均无统计学意义(P>0.05)。结论64层螺旋CT空间分辨力高,对MB的检出率高;维吾尔、汉两民族各冠状动脉MB的发生率差异无统计学意义。

Objective To analyze the incidence of coronary myocardial bridge（MB） of the Uyghur and Han peoples with 64-slice CT.Methods A total of 1350 patients with suspected of coronary disease or other diseases underwent coronary angiography with 64-slice CT,among them 341 patients were diagnosed as MB,including 260 Han people,70 Uyghur people,7 Muslim people and 4 people of Kazak ethnic minority group.The incidence of MB of the Uyghur and Han people was calculated respectively;incidence of MB in proximal,middle and distal segment of left anterior descending（LAD）,the first diagonal branch（D1）,the second diagonal branch（D2）,obtuse marginal（OM）,left circumflex（LCX） and right coronary artery（RCA） between two races were compared with Chi-Square test.Results Totally 341 patients had 439 MB,332 in Han people,92 in Uyghur people,9 in Muslim people and 6 in Kazak ethnic minority group with 64-slice CT.There was no statistical significance of MB incidence between the Uyghur and Han people in coronary artery（P 0.05）,including the proximal,middle and distal segment of LAD.Conclusion The 64-slice CT can effectively detect MB with a high special resolution.There is no statistical significance of MB incidence between the Uyghur and the Han people in each coronary artery.