title: Ultrasound in the evaluation of twin pregnancy.
abstract: Multiple gestations account for approximately 3% of all live births, but contribute to a disproportionate 15% of the overall perinatal mortality. Ultrasound evaluation of twin pregnancies serves an important role in surveillance, early detection, and invasive treatment of complications in twin pregnancies, including spontaneous abortion, abnormalities in placentation, preterm labor, growth restriction, congenital abnormalities, fetal demise, fetal mal-presentation, and twin-to-twin transfusion syndrome. A review of literature regarding the indications and use of ultrasound in twin pregnancy is presented.
authors.affiliation: Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology and the Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA. anna.sfakianaki@yale.edu
authors.forename: A K
authors.initials: AK
authors.lastname: Sfakianaki
authors.forename: C S
authors.initials: CS
authors.lastname: Han
mesh_terms: D000022:Abortion, Spontaneous / Q000000981:diagnostic imaging; D000013:Congenital Abnormalities / Q000000981:diagnostic imaging; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging / Q000517:prevention & control; D005317:Fetal Growth Retardation / Q000000981:diagnostic imaging; D005330:Fetofetal Transfusion / Q000000981:diagnostic imaging; D006801:Humans; D007746:Labor Presentation; D007752:Obstetric Labor, Premature / Q000000981:diagnostic imaging; D010920:Placenta / Q000002:abnormalities; D011159:Population Surveillance; D011247:Pregnancy; D011256:Pregnancy Outcome; D011272:Pregnancy, Multiple; D047928:Premature Birth / Q000000981:diagnostic imaging* / Q000401:mortality / Q000517:prevention & control*; D011296:Prenatal Diagnosis / Q000379:methods*; D018570:Risk Assessment; D014427:Twins; D014429:Twins, Dizygotic; D014430:Twins, Monozygotic; D016216:Ultrasonography, Prenatal