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Enhancement of myocardium echos was observed in 45.5%(30/66) patients,while valve reflu in 78.8%(52/66), pericardial effusion in 28.8%(19/66). 全部66例病人超声心动图中心肌回声增强第三军医大学硕士学位论文占45.;5%25(30/66)，存在瓣口返流的占78