Methods:Investigated all chambers of the heart ; pulmonary artery pressure and tricuspid regurgitation in 68 congenital antrum septal defect and 82 normal neonates by colour Doppler echocardiography.

方法：利用彩色多普勒超声心动图检测68例先天性房间隔缺损患儿与82例正常新生儿心脏各腔室的大小、肺动脉内压力、三尖瓣反流等。

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Methods DDI was measured in 48 patients with AMI and 30 normal control group by Doppler echocardiography.

方法研究组为ami患者48例，同时选择30例正常人作为对照组。

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Objective: To assess the value of Real time myocardial contrast echocardiography (MCE) in the quantitative evaluation of canine normal myocardial perfusion.

目的：探讨实时心肌声学造影定量评价犬正常心肌灌注的可行性。

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