目的 探讨采用CT冠状动脉血管 成像观察心肌桥-壁冠状动脉的形态学特 征，并分析其与冠状动脉粥样硬化病变的 关系。方法 选取100例经128层螺旋CT冠 状动脉成像技术证实的单纯深在型心肌 桥-壁冠状动脉患者(深在型)、100例心 肌桥近端冠状动脉合并粥样硬化患者(硬 化组)的CT冠状动脉成像数据进行统计分 析，比较两组患者的影像学指标差异，并 采用Logistic回归分析心肌桥-壁冠状动 脉的形态学特征与冠脉粥样硬化的关系。 结果 深在型组和硬化组的心肌桥厚度、 壁冠状动脉近端成角率差异无统计学意义 (P>0.05)，两组间壁冠状动脉长度、壁冠 状动脉两端平滑率、壁冠状动脉两端成角 率、壁冠状动脉远端成角率差异均具有统 计学意义(P<0.05)；壁近段冠状动脉粥样 硬化的危险因素为年龄(OR=1.872)、两组 间壁冠状动脉长度(OR=2.031)、壁冠状动 脉两端成角(OR=1.376)、壁冠状动脉远端 成角(OR=1.448)，壁冠状动脉两端平滑是 保护因素(OR=0.471)。结论 心肌桥-壁冠 状动脉复合体的形成与冠脉近段粥样硬化 形成密切相关。

Objective To investigate the morphological characteristics of myocardial bridging wall coronary artery by CT and analyze its relationship with coronary artery disease. Methods 100 cases with 128 slice spiral CT coronary artery imaging confirmed that the CT coronary artery imaging data of single deep in type patients (deep), 100 patients with myocardial bridge proximal coronary artery were analyzed, and compared with two groups of patients. Results Deep in the group and atherosclerosis group myocardial bridge thickness and mural coronary artery proximal angular rate difference was not statistically significant (P>0.05), rate of two groups of partition of coronary artery length and wall of coronary artery at both ends of the smooth, at both ends of the wall coronary artery angle rate, mural coronary artery distal to the angular rate differences had statistical significance (P<0.05), wall proximal coronary atherosclerosis risk factors for age (OR=1.872), two groups of partition of coronary artery length OR=2.031, both ends of the wall coronary artery angle (OR=1.376) and mural coronary artery distal angulation OR=1.448 and mural coronary dynamic veins at both ends of the smoothing is protective factor (OR=0.471). Conclusion The formation of myocardial bridging mural coronary artery is closely related to the formation of coronary atherosclerosis.