Objective To evaluate the diagnostic value of cardiac magnetic resonance (CMR) in suspected coronary heart disease patients with electrocardiogram abnormalities but normal coronary angiography. Methods The data of 25 suspected coronary heart disease patients with electrocardiogram abnormalities but normal coronary angiography were collected from Taiyuan central hospital between October 2010 and April 2012. Comparison was done in terms of anterior interventricular septal thickness, left ventricular posterior wall thickness, left ventricular end diastolic dimension, left ventricular end systolic dimension, left atrial diameterand ejection fraction measured by CMR and by UCG. Correlation of the aboved paremeters between the 2 imaging exams. Results 40%of patients had their diagnosis changed after CMR exam, 32%of the patients with adjusted assessment. The differences in anterior interventricular septal thickness, left ventricular posterior wall thickness, left ventricular enddiastolic dimension, left ventricular end systolic dimension, left atrial diameter, ejection fraction by CMR and by UCG were similar (P>0.05) with positive correlation (P<0.01). Conclusions CMR can provide diagnosis and evaluation information to chest pain patients with ECG abnormalities but normal CAG, and it is a good supplement for routine examination.%目的：评价心脏核磁共振成像（CMR）对心电图异常冠状动脉造影正常疑似冠心病患者的评估价值。方法纳入2010年10月至2012年4月在太原市中心医院因疑似冠心病入院患者25例，且心电图（ECG）有异常表现，行冠状动脉造影（CAG）检查无明显异常，后行CMR检查的患者，年龄（45.4±17.5）岁。描述CMR检查前后疾病诊断发生的改变，应用CMR检查和超声心动图（UCG）检查所测得的前室间隔厚度、左心室后壁厚度、左心室舒张末期内径、左心室收缩末期内径、左心房内径、射血分数（EF）结果进行比较和相关性分析。结果 CMR检查使40%患者的诊断发生了变化，32%患者的评估发生了变化。心脏前室间隔厚度、左心室后壁厚度、左心室舒张末期内径、左心室收缩末期内径、左心房内径、EF在UCG和CMR检查中差异无统计学意义（P＞0.05），且相关性具有统计学意义（P＜0.01）。结论 CMR可以对ECG异常、CAG正常的患者提供诊断和评估的价值，是目前常规检查的一个很好补充。
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