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本文报道应用二维超声心动图、声学造影诊断法乐氏四联症100例,均经手术治疗。术前超声诊断符合率95％。超声对室缺、右室肥厚及右室流出道狭窄的检出率100％;检出主动脉骑跨97％;肺动脉瓣显示率97.5％。右心声学造影93％显示收缩期有中等量或大量造影剂由右室进入主动脉,肺动脉内造影剂的有无及多少,对鉴别肺动脉闭锁及判断肺动脉狭窄程度很有帮助。本文还讨论了影响超声心动图正确诊断法乐氏四联症的因素。
This article reports the application of two-dimensional echocardiography, acoustic contrast imaging diagnosis of tetralogy of Fallot 100 cases, both by surgery. Preoperative ultrasound diagnosis coincidence rate of 95%. Ultrasound on the ventricular aneurysm, right ventricular hypertrophy and right ventricular outflow tract stenosis detection rate of 100%; detection of aortic riding 97%; pulmonary valve 97.5%. Right ventricular angiography showed that 93% of systolic medium or large amount of contrast medium into the aorta from the right ventricle, pulmonary artery contrast medium and how much, to identify pulmonary atresia and determine the degree of pulmonary stenosis helpful. This article also discusses the factors that influence echocardiography in correctly diagnosing tetralogy of Fallot.