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目的分析尿毒症患者心脏磁共振(CMR)心肌延迟强化的特征,探讨MRI增强检查对尿毒症心肌病的意义和价值。资料与方法 40例尿毒症患者、10例心肌梗死患者及5例肥厚性心肌病患者分别接受CMR增强检查,分析不同患者延迟强化心肌的特点。结果 CMR延迟增强检查,尿毒症与肥厚性心肌病组与心肌梗死组的延迟强化心肌平均信号强度指数、最大层面延迟强化心肌面积有明显差异(P<0.001)。结论 CMR延迟增强检查尿毒症患者异常强化心肌特点:延迟强化心肌分布在左心室室壁中部,呈局灶性小斑片状,且轻度强化改变,这与肥厚性心肌病有所类似。
Objective To analyze the characteristics of myocardial delayed enhancement in cardiac magnetic resonance (CMR) patients with uremia and to explore the significance and value of MRI enhanced examination in uremic cardiomyopathy. Materials and Methods 40 patients with uremia, 10 patients with myocardial infarction and 5 patients with hypertrophic cardiomyopathy underwent CMR enhanced examination of different patients with delayed myocardial characteristics. Results CMR delay enhanced examination, uremia and hypertrophic cardiomyopathy group and myocardial infarction group delayed enhanced myocardial signal strength index, the maximum level of delay enhanced myocardial area were significantly different (P <0.001). Conclusions Delayed enhancement of CMR in patients with uremia to check the abnormal myocardial characteristics of enhanced myocardial: delayed myocardial distribution in the central part of the left ventricular wall was focal small patchy, and slightly enhanced changes, which is similar to hypertrophic cardiomyopathy.