title: Ultrasound screening in second and third trimester of pregnancy: an update.
abstract: Ultrasound screening of structural fetal malformations is mainly based on the use of ultrasounds during the second trimester of pregnancy. The diagnostic sensibility of ultrasounds varies in the different multicentric studies reported in literature and is correlated to different factors: gestation period, type of malformation, number of ultrasounds performed, operator experience, etc. Third trimester ultrasounds may identify late-onset malformations and offer adequate information for postnatal assistance.
authors.affiliation: Department of Obstetrics, Gynecology, and Neonatology, Section of Gynecology and Obstetrics, University of Parma. carla.verrotti@unipr.it
authors.forename: Carla
authors.initials: C
authors.lastname: Verrotti
authors.forename: Eleonora
authors.initials: E
authors.lastname: Caforio
authors.forename: Dandolo
authors.initials: D
authors.lastname: Gramellini
authors.forename: Giovanni Battista
authors.initials: GB
authors.lastname: Nardelli
mesh_terms: D000013:Congenital Abnormalities / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D015337:Multicenter Studies as Topic; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D011263:Pregnancy Trimester, Third; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D016216:Ultrasonography, Prenatal