成年国人冠状动脉管径的CT解剖学研究  

ANATOMIC STUDY OF CORONARY ARTERY SIZE USING 16-SLICE COMPUTED TOMOGRAPHY

作　　者：陈艳[1] 韩萍[1] 梁波[1] 史河水[1] 雷子乔[1] 刘永华[1] 

机构地区：[1]华中科技大学同济医学院附属协和医院放射科,武汉430022

出　　处：《解剖学报》2008年第6期936-940,共5页Acta Anatomica Sinica

摘　　要：目的探讨冠状动脉管径随年龄变化的规律以及冠脉管径与其分布类型的关系。方法将临床及影像学检查无冠状动脉疾患的患者104人,行多层螺旋CT(MSCT)冠状动脉检查,并按照年龄及冠脉分布类型进行分组。冠状动脉的分段采用美国心脏协会15分段法。用MSCT测量右冠近段、中段及远段,左主干,前降支近段、中段及远段,回旋支近段及远段的起始部短轴位直径。结果MSCT检查结果显示,右冠、前降支近、中、远段管径以及回旋支近段、远端管径两两相比均有显著性差异。冠状动脉各段管径在青年组至老年组中依次增大,老年组左主干管径较青、中年组有显著性差异,其余冠脉段管径在各年龄组间均无显著性差异。左主干的管径以左优势型组中最大,与其他两型的左主干管径相比均有显著性差异,后两者左主干管径无显著性差异。前降支各段管径以左优势型组中最大,各段管径在3组间无显著性差异。回旋支各段管径以左优势型组最大,右优势型组最小,其中左优势型组的回旋支近段管径与其他两型相比有显著性差异,而后两者间无显著性差异;回旋支远段管径在3组间均有极显著性差异。右冠各段管径以右优势型组中最大,左优势型组最小,其中右优势型组的右冠近段管径与其他两型相比有显著性差异,而后两者间无显著性差异;右冠中、远段管径在3组间均有显著性差异。结论MSCT能多角度、多体位地显示冠状动脉。冠脉各段管径随年龄增加而增大,且管径与其分布类型相适应,活体冠状动脉各段管径的测量对冠状动脉病变的诊断具有一定的临床价值。Objective To evaluate the CT features of the coronary artery in normal adults and to measure the diameter of coronary artery using 16-slice computed tomography. Methods 16-slice CT coronary angiography was performed in this study. Totally 104 cases whose coronary arteries were normal were divided into 3 groups according to age and dominant pattern of coronary. artery. The diameter of right artery （ RCA）, including the proximal, middle and distant segments were measured by using CT, so was the diameter of left main artery （LM）, left anterior descending artery （LAD） including the proximal, middle and distant segments, and left circumflex artery proximal and distant segments. Results The diameters of coronary arteries increased with the age. There was a difference of LM diameter between the elder group and the youth group and middle group. However there was no difference in the youth group and the elder group. No difference were detected from other coronary artery segment＇ s diameter. The diameter of LM in left dominant pattern was the largest, and it showed a difference when compared with the other two groups, but there was no difference between the latter two groups. The diameters of LAD and LCX in left dominant pattern were the largest, and that of in right dominant pattern were the smallest. The diameter of LAD had no difference among the three groups. The diameter of LCX proximal segment had no difference between the balanced dominant pattern and right dominant pattern, but there was a difference compare to the lefl dominant pattern. The diameters of LCX distant segment showed differences between any two groups. The diameter of RCA in the right dominant pattern was the largest. The diameters of RCA proximal segments showed no difference between the balanced dominant pattern and left dominant pattern, and there was difference among any other groups. Conclusion MSCT can display coronary artery from any angle and position. The diameter of coronary artery segment increases with the increase of age. Co

关 键 词：X线计算机 冠状动脉 血管造影 体层摄影术 人 

分 类 号：R322.1[医药卫生—人体解剖和组织胚胎学] R813[医药卫生—基础医学]