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目的：探讨原发心脏肿瘤超声心动图（ＥＣＧ）特征。资料和方法： １００例原发心脏肿瘤。年龄 ６～６８（平均 ４２．５）岁。应用ＥＣＧ检查后９９例手术，１例尸解证实。结果：ＥＣＧ对９７例心腔内粘液瘤全部做出正确诊断，２例心肌纤维瘤和１例二尖瓣叶脂肪瘤提出相应部位占位病变。结论：心脏粘液瘤与心内膜界限明显，都有蒂与心内膜相连，瘤体以蒂为定点随心脏收缩舒张往返摆动，其它肿瘤与正常心肌无明显界限且无蒂；心房粘液瘤可致房室瓣狭窄和关闭不全，瘤体摘除后房室瓣功能即恢复正常；ＥＣＧ是诊断原发心脏肿瘤简便、快捷、准确的检查方法。
Objective: To investigate the features of echocardiography (ECG) in primary cardiac tumors. Materials and Methods: 100 primary cardiac tumors. Age 6 to 68 (average 42.5) years old. After the application of ECG examination 99 cases of surgery, 1 case confirmed by autopsy. RESULTS: ECG correctly diagnosed 97 cases of intracardiac myxoma, 2 cases of myocardial fibroids and 1 case of mitral lobular lipoma raised the corresponding site-occupying lesions. Conclusion: There is a clear boundary between cardiac myxoma and endocardium, and both pedicle and endocardium are connected. The tumor is punctured with the pedicle as a fixed point. The other tumors have no obvious boundary with normal myocardium and there is no pedicle; the atrial myxoma can be Induced atrioventricular valve stenosis and insufficiency, the removal of the atrioventricular valve function is restored to normal; ECG is a simple, rapid and accurate method of diagnosis of primary cardiac tumors.