title: [Ultrasound measurements of the diameter of the aorta and pulmonary trunk of the fetus].
abstract: Fetal cardiac measurements derived in the five-chamber and the short-axis view were performed in uncomplicated pregnancies between the 20th and the 40th week of gestation. Using cine loop and zoom techniques, the diameters of the aortic and pulmonary valve were measured (n = 157) and the pulmonary trunk/aorta ratio calculated. Normal ranges for both parameters were constructed and correlated with gestational age. Both diameters showed a linear increase during gestation (aorta r = 0.87, pulmonary trunk r = 0.91). The mean pulmonary trunk/aorta ratio had a constant value of 1.25 and showed no changes throughout pregnancy. In 128 fetuses the heart width was further measured and the vessel diameters were presented in correlation to the heart width.
authors.affiliation: Abteilung Pränatale Diagnostik und Therapie, Universitäts-Frauenklinik der Charité, Berlin, Deutschland.
authors.forename: R
authors.initials: R
authors.lastname: Chaoui
authors.forename: K S
authors.initials: KS
authors.lastname: Heling
authors.forename: R
authors.initials: R
authors.lastname: Bollmann
mesh_terms: D001013:Aorta, Thoracic / Q000000981:diagnostic imaging*; D001021:Aortic Valve / Q000000981:diagnostic imaging; D004452:Echocardiography; D005260:Female; D005318:Fetal Heart / Q000000981:diagnostic imaging*; D005865:Gestational Age; D006330:Heart Defects, Congenital / Q000000981:diagnostic imaging; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D011446:Prospective Studies; D011651:Pulmonary Artery / Q000000981:diagnostic imaging*; D011664:Pulmonary Valve / Q000000981:diagnostic imaging; D012016:Reference Values; D012189:Retrospective Studies; D016216:Ultrasonography, Prenatal
vernacular_title: Sonographische Messungen der Durchmesser der Aorta und des Truncus pulmonalis beim Feten.