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。
The results showed that grain size in diamond film, defect and the film growth mode are different to diamond films appearing different colour.
观察表明：外强颜色不同的金刚石膜，其内部晶粒尺寸、缺陷类型和生长方式也不同。
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