Sonography of multiple gestations

Ultrasound plays an important role in the management of multiple gestations in several key areas: (1) diagnosing multiple gestation and determining fetal number; (2) determining placentation; (3) diagnosing complications; (4) guiding procedures; and (5) identifying fetal lie late in pregnancy. The information obtained from single or serial ultrasound examinations can lead to improved obstetric decision-making and thereby to improved outcome in these high-risk pregnancies.