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| Value of four chamber view and three-vessel-trachea view in screening esophageal atresia in prenatal ultrasound |
| CHEN Xiu-lan1, SUN Kun2, ZHOU Ning1 |
1.Department of Ultrasound, Shenzhen Hospital Southern Medical University, Shenzhen Guangdong 518000, China;
2.Department of Ultrasound, General Hospital of Shenzhen University, Shenzhen Guangdong 518000, China |
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Abstract esia in prenatal ultrasound. Methods: Prenatal ultrasound was prospectively performed in 425 consecutive fetuses between 21 and 25 weeks for detection of esophageal atresia. A complete anatomical survey was performed. We searched for esophagus on satisfactory 4C and 3VT view. Fetuses whose esophagus could be showed on 4C and 3VT were at low risk of esophageal atresia. Fetuses whose esophagus couldn’t be showed on either 4C or 3VT or both were at high risk of esophageal atresia. More views such as saggital and coronary view of esophagus could be needed to get more information. Results: Esophagus could be viewed on both 4C and 3VT in 396 cases(93.1%, 396/425). These were at low risk of esophageal atresia. The remaining 29 cases(6.8%, 29/425) were at high risk of esophageal atresia. Out of them, 27 cases were confirmed to be normal as continuous parallel echogenic lines was found on saggital views or coronary views. During the screening, 2 cases of esophageal atresia were found. Their esophaguses couldn’t be shown on 3VT. Neither of esophageal atresia cases was misdiagnosed in this group. The sensitivity, specificity, positive predictive value and negative predictive value were 100% (2/2), 93.6%(396/423), 6.9%(2/29) and 100%(396/396) respectively of 4C and 3VT for the screening of the fetal esophageal atresia. Conclusions: It is effective to screen fetal esophageal atresia with 4C and 3VT.
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Received: 20 June 2018
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2019, Vol. 30 
