ABSTRACT
0.05),the specificity of transthoracic echocardiography in diagnosing the atrial situs,ventricular structure,the connection of the ventricle and arteries or auricle,arterial situs was more than 90%.In mirror-image dextrocardia,majority had concordant segmental connection and could present anomalies with simple anomalies(42.9%) including atrial septal defect and ventricular septal defect,in addition,the major complex anomalies such as pulmonary stenosis were tetralogy of Fallot,double outlet of right ventricle(50%);In dextroversion,majority had discordant segmental connection and mostly presented anomalies with pulmonary stenosis or pulmonary atresia,including single ventricle,double outlet of right ventricle,transpo sition of great arteries,pulmonary atresia and so on(88.6%).Conclusion Echoca rdiography can exactly diagnose the most congenital dextrocardia with complex cardiovascular anomalies,and can be the first or alternative screening choice for diagnosing dextrocardia.