彩色多普勒超声诊断胎儿法洛四联症的探讨

Prenatal color Doppler ultrasonographic diagnosis of fetal tetralogy of Fallot

目的探讨胎儿法洛四联症的超声特征,找出诊断要点,以提高其产前超声诊断率。方法回顾性分析5例经彩色多普勒超声检查诊断为法洛四联症胎儿的超声图像及随访结果,分析总结其超声特征。结果 2例胎儿经尸体解剖证实为法洛四联症,3例胎儿在出牛后经超声心动图复查证实。胎儿法洛四联症主要声像图表现是主动脉骑跨于缺损的室间隔上,有肺动脉狭窄,右室壁无明显增厚。结论胎儿法洛四联症有特征性的超声图像,彩色多普勒超声产前诊断胎儿法洛四联症较为准确,具有重要的临床价值。

Objective To investigate the sonographic findings of tetralogy of Fallot in fetuses. Methods The data of color Doppler ultrasonography and follow-up results of 5 fetal tetralogy of Fallot were analyzed retrospectively,and their abnormal ultrasound imaging characteristic were summarized. Results Two cases were proved tetralogy of Fallot by autopsy, and three cases were confirmed to be tetralogy of Fallot by echocardiography after birth. The image features were the main aorta situated above the ventricular septal defect, pulmonary stenosis, no obvious thickening of the right wall. Conclusion Fetal tetralogy of Fallot have characteristic ultrasound images, prenatal color Doppler ultrasonographic can diagnoses fetal tetralogy of Fallot correctly and has important clinical value.