目的：探索胎儿食管闭锁的超声声图像表现，为产前诊断食管闭锁提供更多的价值。 方法：选取25例就诊于妇幼保健院的14-40周的疑似食管闭锁的胎儿，对其进行多系统、多切面连续扫查，详细观察食管在各个切面的表现以便可以提高胎儿产前的检出率。 结果：本次实验引产后尸检证实食管闭锁的共9例，产后进行X线造影验证食管闭锁的共21例；21例胎儿表现胃泡不显示，8例胎儿胃泡偏小，1例胃泡大小正常；11例胎儿食管上段扩张，19例食管上段无扩张；7例为食管闭锁I型，23例为食管闭锁III型。 结论：胎儿食管闭锁在产前有其特征性的超声表现，主要包括直接超声表现和间接超声表现，所以产前超声诊断对于诊断食管闭锁有重要意义。

Objective: To explore the ultrasonographic features of fetal esophageal atresia and provide more value for prenatal diagnosis of esophageal atresia. Methods: 25 fetuses with suspected esophageal atresia of 14-40 weeks in maternal and Child Health Hospital of Inner Mongolia Autonomous Region were selected and scanned continuously in multiple systems and sections to observe the performance of esophagus in each section in detail, so as to improve the prenatal detection rate of fetuses. Results: there were 9 cases of esophageal atresia confirmed by autopsy after induced labor, and 21 cases of esophageal atresia confirmed by postpartum X-ray angiography; 21 cases of fetus showed no gastric bubble, 8 cases of fetus showed small gastric bubble, and 1 case had normal gastric bubble size; 11 cases of fetal upper esophageal dilatation, 19 cases of upper esophageal dilatation; 7 cases of esophageal atresia type I, 23 cases of esophageal atresia type III. Conclusion: fetal esophageal atresia in prenatal ultrasound has its own characteristics, mainly including direct ultrasound performance and indirect ultrasound performance, so prenatal ultrasound diagnosis for the diagnosis of esophageal atresia has important significance.