目的 综合分析心肌桥和壁冠状 动脉的多层螺旋CT诊断及其临床意义及对 患者心功能的影响。方法 选取在我院收 治的91例接受多层螺旋CT诊断的心肌桥 和壁冠状动脉患者作为研究对象。采用 SPSS20.0统计学软件进行统计学分析心肌 桥和壁冠状动脉患者在冠状动脉不同节段 中的段数和所占比例、心肌桥深度、壁冠 状动脉长度、心肌桥和壁冠状动脉形态学 表现、不同狭窄程度的壁冠状动脉患者 左心功能的相关指标(左心室收缩末期容 积、舒张末期容积、每搏输出量、心脏输 出量、左心室射血分数)、有无粥样斑块 者左心功能相关指标。结果 ①91例心肌 桥和壁冠状动脉患者共检测出126段，心 肌桥和壁冠状动脉在冠状动脉不同节段 中的段数中所占比例最高的是前降支中 段，其次是前降支远段，最后是第二对角 支，冠状动脉的不同节段比例比较有统计 学意义(P<0.05)；②心肌桥平均深度为 (1.88±0.26)mm、壁冠状动脉平均长度为 (21.69±9.33)mm；③心肌桥和壁冠状动 脉患者的形态学表现：冠状动脉主干以及 分支均穿行在心肌内、局部有台样改变、 圆锥样改变、挤奶现象;④不同狭窄程度 的壁冠状动脉患者在左心室收缩末期容积 比较无统计学意义(P>0.05)，在舒张末 期容积、每搏输出量、心脏输出量、左 心室射血分数等方面比较有统计学意义 (P<0.05)；⑤有无粥样斑块壁冠状动脉患 者在左心室收缩末期容积、舒张末期容 积、每搏输出量、心脏输出量、左心室射 血分数方面比较无统计学意义(P>0.05)。 结论 多层螺旋CT诊断心肌桥和壁冠状动 脉患者的价值比较高，能够清楚显示形态 学的基本特征，壁冠状动脉狭窄会导致左 心室的功能出现下降水平。

Objective To comprehensively analyze the multi-slice spiral CT diagnosis of myocardial bridge and coronary artery and its clinical significance and its effect on cardiac function. Methods 91 patients with myocardial bridge and wall coronary artery were treated with multi-slice spiral CT in our hospital. SPSS20.0 statistical software was used to analyze the number of segments and the proportion of cardiomyocytes and coronal arteries in different segments of the coronary artery. The depth of the myocardial bridge, the length of the coronary artery, the morphology of the myocardial bridge and the coronary artery (Left ventricular end-systolic volume, end-diastolic volume, stroke volume, cardiac output, left ventricular ejection fraction), and atherosclerotic plaque left in patients with different degrees of coronary artery disease Heart function related indicators. Results ①91 cases of myocardial bridge and coronary artery were detected in 126 patients, myocardial bridge and coronary artery in different segments of the coronary artery in the highest proportion of the middle of the anterior descending artery, followed by the anterior descending artery (P <0.05). ② The average depth of the myocardial bridge was (1.88± 0.26) mm, and the average length of the coronary artery was (21.69±2), and the mean length of the coronary artery was (21.69±9.33) mm. ③ Morphological manifestations of cardiac and wall coronary arteries: Coronary trunk and branches are in the myocardium, local changes, panicle changes, milking phenomenon. ④ different degree of stenosis of the coronary artery (P<0.05). There was no significant difference in the volume of left ventricular systolic volume (P>0.05), and there was no significant difference in left ventricular end-systolic volume (P>0.05) There was no significant difference in left ventricular end-systolic volume, end-diastolic volume, stroke volume, cardiac output and left ventricular ejection fraction (P>0.05). Conclusion The value of multi - slice spiral CT in diagnosis of myocardial bridge and coronary artery is relatively high, which can clearly show the basic characteristics of morphology. Coronary artery stenosis can lead to the decline of left ventricular function.