Ultrasound Screening in Low-risk Obstetrical Population: Effect on Perinatal Outcome

Abstract

Abstract The issue of routine sonography for low-risk pregnant women continues to be controversial since randomized trials have not been able to demonstrate a clear benefit especially in prenatal outcome in the past. Ultrasonography early in pregnancy can be definitely used for accurate gestational age determination and detection of multiple gestations. Additionally ultrasound scan is the best method for detecting fetal malformation as well as fetuses in high-risk for growth restriction. Since fetal chromosomal and structural anomalies, prematurity and poor placentation account for 90% of poor perinatal outcome, ultrasound could theoretically help in decreasing perinatal mortality and severe perinatal morbidity.