超声在产前诊断胎儿肺动脉闭锁中的应用价值

目的探讨产前超声诊断胎儿肺动脉闭锁的临床价值.方法回顾分析7例经解剖证实的肺动脉闭锁胎儿的超声心动图资料,总结其异常声像图特点.结果7例在二维超声心动图各切面观中仅1例显示主肺动脉显著窄于主动脉,6例未显示主肺动脉;5例显示室间隔缺损伴主动脉骑跨,2例室间隔完整者均合并右室发育不良;彩色多普勒血流显像示5例动脉导管反向血流,3例显示三尖瓣反流.产前超声诊断胎儿肺动脉闭锁5例,诊断右心发育不良1例,误诊永存动脉干1例.结论产前超声检出动脉导管反向血流是诊断胎儿肺动脉闭锁的重要依据,具有重要的临床意义.

Value of prenatal ultrasonographic diagnosis in fetal pulmonary atresia

Objective To explore the clinical value of prenatal ultrasonographic diagnosis of fetal pulmonary atresia. Methods The data of echocardiography in 7 fetus with pulmonary atresia confirmed by autopsy were analysed retrospectively, thc characteristics of abnormal ultrasound imaging were summarized. Results The dysplastie main pulmonary had been detected only in one fetus by two dimensional eehoeardiography, five cases were shown ventricular septal defect with straddle of aortic root on the ventricular septum,two cases with intact ventrieular septum had hypoplasis of right heart. Color Doppler flow imaging showed the reverse flow of duetus arteriosus in 5 cases and tricuspid regurgitation in 3 cases. Five cases were diagnosed pulmonary atresia,one case was hypoplasia of right heart,and one case was mistaken for persistent truncus arteriosus. Conclusions Prenatal ultrasonographic diagnosis of tetal pulmonary atresia has great clinical value, the reverse flow of ductus arteriosus is an important clue to diagnosis.