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目的探讨肥厚型心肌病(hpertrophic crdiomyopathy,HCM)的心电图和MRI表现。方法搜集17例经临床确诊的HCM患者资料,对其心电图、MRI表现进行总结分析。结果 17例患者心电图均异常,主要表现为ST-T异常、左束支传导阻滞、左心室高电压、异常Q波、T波倒置。MRI以左心室壁非对称性肥厚、室间隔肥厚居多,其次是心尖肥厚;心腔缩小,心肌信号正常;心脏功能异常(7例)。ST段压低深度与心尖部室壁厚度呈正相关,Q波深度与室间隔厚度呈正相关,T波深度与心尖部和室间隔的室壁厚度差呈正相关。结论 HCM的心电图、MRI均有一定的特征性,两者结合、相互补充,可为临床诊断该病提供重要的依据。
Objective To investigate the electrocardiogram (ECG) and MRI findings of hypertrophic cardiomyopathy (HCM). Methods The data of 17 patients with clinically diagnosed HCM were collected, and their electrocardiogram and MRI findings were analyzed. Results All the 17 patients had abnormal electrocardiogram. The main abnormalities were ST-T abnormality, left bundle branch block, left ventricular high voltage, abnormal Q wave and T wave inversion. MRI asymmetric hypertrophy of the left ventricular wall, septal hypertrophy mostly, followed by apical hypertrophy; cardiac systole, myocardial signal normal; abnormal cardiac function (7 cases). The depth of ST depression was positively correlated with the thickness of apical wall. The depth of Q wave was positively correlated with the thickness of interventricular septum. The depth of T wave was positively correlated with the difference of wall thickness between apical and interventricular septum. Conclusion Electrocardiogram and MRI of HCM all have certain characteristic. Combining and supplementing each other can provide an important basis for clinical diagnosis of the disease.