title: [Measuring amniochorionic membrane thickness with high frequency ultrasound].
abstract: The postpartal thickness of the amniochorionic membrane was measured by means of 20 MHz ultrasound after 28 inconspicuous deliveries in the course of a prospective study. The aim of our investigation was to determine the thickness of the amniochorionic membrane using high frequency ultrasound and to evaluate the results for a statistical correlation with fetal and maternal parameters. The data obtained were compared with histological sections for measurement accuracy using a linear regression analysis method. Membrane thickness of the total study group was 0.83 +/- 0.11 mm (0.72-1.08 mm). Based on a statistical comparison with the histological sections, the high frequency ultrasonographic examination was shown to be highly reliable with a correlation coefficient of r = 0.96 (p < 0.0001). Results obtained by ultrasonography were correlated with maternal (gestational age, patient age, parity) and neonatal (size and weight at birth, sex, placental weight, Apgar 1/5/10) parameters by means of linear regression analysis. There was a statistically significant correlation between parity and membrane thickness (r = 0.485, p < 0.05). There was also a correlation of Apgar scores at 5 minutes post partum (r = 0.485, p < 0.05). We were able to demonstrate that the measurement of membrane thickness by ultrasound is an objective and reliable method and may be a gain to prenatal diagnostics when used in vivo.
authors.affiliation: Universitätsfrauenklinik Wien.
authors.forename: P
authors.initials: P
authors.lastname: Frigo
authors.forename: C
authors.initials: C
authors.lastname: Lang
authors.forename: T
authors.initials: T
authors.lastname: Golaszewski
authors.forename: M
authors.initials: M
authors.lastname: Sator
authors.forename: R
authors.initials: R
authors.lastname: Ullrich
authors.forename: W
authors.initials: W
authors.lastname: Eppel
authors.forename: B
authors.initials: B
authors.lastname: Schurz
mesh_terms: D000293:Adolescent; D000368:Aged; D000650:Amnion / Q000000981:diagnostic imaging* / Q000473:pathology; D001724:Birth Weight; D002823:Chorion / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D005322:Premature Rupture of Fetal Membranes / Q000000981:diagnostic imaging / Q000473:pathology; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D011247:Pregnancy; D012016:Reference Values; D012307:Risk Factors; D016216:Ultrasonography, Prenatal