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多普勒超声心动图法是心脏超声诊断中发展迅速的一门新技术。利用这种技术,可获得心导管或心脏造影得不到的信息,如测
Doppler echocardiography is a rapidly developing technique in the diagnosis of echocardiography. Using this technique, you get information that cardiac catheterization or cardiac imaging can not get, such as measurement