CT冠状动脉成像在诊断心肌桥及壁冠状动脉中的价值

目的探讨64排螺旋CT（64SCT）冠状动脉成像在诊断心肌桥及壁冠状动脉的应用价值。方法回顾性分析64SCT冠状动脉成像患者230例，统计心肌桥的检出率、部位、厚度、壁冠状动脉狭窄程度，分析其与临床症状的关系。结果在230例进行64SCT冠状动脉成像患者中，发现心肌桥53例（共60处），检出率为23．04％（53／230），与CAG的检出率（5．2％）比较差异有统计学意义（P〈0．05），64SCT中仅有13支与CAG发现的14支心肌桥一致。浅表型肌桥和深在型肌桥在厚度、壁冠状动脉狭窄程度及临床症状均有统计学差异（P〈0．05）。结论64SCT冠状动脉成像是一种无创、较为准确诊断心肌桥的手段。

Curative effect of intracoronary injection of diltiazem on acute coronary syndrome

Objective To discuss the values of coronary angiography with 64-slice spiral CT(64SCT) for diagnosing myocardial bridge and mural coronary artery.Methods The outcomes of coronary angiography with 64SCT from 230 patients were retrospectively analyzed.The detection rate,location and thickness of myocardial bridge and stenosis degree of mural coronary artery were reviewed,and the relationship between them and symptoms was analyzed.The sensitivity of 64SCT in the diagnosis of myocardial bridge was determined taking coronary angiography(CAG) as gold standard.Results Among 230 patients with 64SCT,53 were found having myocardial bridge(60) and the detection rate was 23.04%(53/230),which was statistically significant compared with the detection rate of CAG(5.2%).There were 13 MBs diagnosed by 64SCT were consistent with 14 diagnosed by CAG.Superficial myocardial bridge and deep myocardial bridge had statistical differences in thickness,stenosis degree of mural coronary artery and symptoms(P<0.05).Conclusion Coronary angiography with 64SCT is a non-invasive and accurate method for diagnosing myocardial bridge.