Objective To evaluate the value of ultrasound in diagnosing congenital digestive tract abnormalities and abdominal wall defects.Methods The OB ultrasound examinations of 136 cases with digestive tract abnormalities and 41 cases of abdominal wall defects were analyzed , those cases came from Alta Bates Perinatal Diagnostic center , Oakland, California USA during 5 years recently.Results In 136 cases of digestive tract abnormalities, 9 cases were esophageal atresia, 19 cases were duodenal atresia, 12 cases were jejunal atresia, 68 cases were echogenic bowel, 19 cases were meconium peritonitis, 9 cases were diaphragmatic hernia. In 41 cases of abdominal wall defects, 11 cases were gastroschisis, 18 cases were omphalocele, 12 cases were amniotic band syndrome. Each type had its special image feature,which is correlated to errors in embryonic developments. Conclusion Many digestive tract abnormalities and abdominal wall defects can be readily detected and diagnosed by ultrasound . Ultrasound is valuable in diagnosing fetal congenital digestive tract abnormalities and abdominal wall defects.

Objective To assess the value of ultrasound in diagnosis of congenital renal malformations. Methods The records of obstetric ultrasound examinations were reviewed in all the pregnant women admitted in Alta Bates Perinatal Diagnostic center (Oakland, California, USA) during 5 years. Results Ultrasound examination identified 58 cases of congenital renal malformations of different kinds, including 4 cases of renal agenesis, 8 multicystic dysplastic kidney, 5 cystic renal dysplasia with obstructions, 6 renal and ureteral duplications, 6 ectopic kidneys, 18 hydronephroses, 3 autosomal recessive polycystic kidney diseases, 2 autosomal dominant polycystic diseases, 1 Finnish-type congenital nephrosis, 3 Meckel-Gruber syndromes, and 2Beckwith-Wiedemann syndromes. Different renal malformations had different ultrasound findings that correlated to abnormalities in embryonic developments. Conclusions Urinary tract abnormalities have a profound effect on pregnancy outcome, especially when associated with oligohydramnios. Many urinary anomalies can be readily detected and diagnosed by ultrasound,which provides a useful modality in diagnosis of fetal congenital renal malformations. Clear understanding of the causes of these abnormalities facilitates prognostic evaluation and clinical decision on the treatment protocol.

Objective To assess the value of ultrasound in diagnosis of congenital renal malformations. Methods The records of obstetric ultrasound examinations were reviewed in all the pregnant women admitted in Alta Bates Perinatal Diagnostic center (Oakland, California, USA) during 5 years. Results Ultrasound examination identified 58 cases of congenital renal malformations of different kinds, including 4 cases of renal agenesis, 8 multicystic dysplastic kidney, 5 cystic renal dysplasia with obstructions, 6 renal and ureteral duplications, 6 ectopic kidneys, 18 hydronephroses, 3 autosomal recessive polycystic kidney diseases, 2 autosomal dominant polycystic diseases, 1 Finnish-type congenital nephrosis, 3 Meckel-Gruber syndromes, and 2Beckwith-Wiedemann syndromes. Different renal malformations had different ultrasound findings that correlated to abnormalities in embryonic developments. Conclusions Urinary tract abnormalities have a profound effect on pregnancy outcome, especially when associated with oligohydramnios. Many urinary anomalies can be readily detected and diagnosed by ultrasound,which provides a useful modality in diagnosis of fetal congenital renal malformations. Clear understanding of the causes of these abnormalities facilitates prognostic evaluation and clinical decision on the treatment protocol.