title: [Reproducibility of the Doppler ultrasound blood flow profile of the umbilical artery with special reference to threatened premature labor].
abstract: The reproducibility of Doppler blood velocity profiles of the umbilical arteries within the umbilical cord is a special problem because of the difficult separation and extreme torsion of both vessels. Resistance-(RI) and pulsatility index (PI) have been assessed on two different locations immediately one after the other in 90 pregnancies with signs for premature labor, including 16 cases with premature rupture of membrane. For comparison the same measurements have been performed in 33 normal pregnancies. There was a significant correlation between the first and second assessment. However, the correlation coefficients of cases with premature labor are lower than in normal pregnancy. This underlines the necessity of at least two repeated measurements for these patients with signs of premature labor.
authors.affiliation: Klinik für Gynäkologie und Geburtshilfe, Karl-Marx-Universität.
authors.forename: R
authors.initials: R
authors.lastname: Robel
authors.forename: K E
authors.initials: KE
authors.lastname: Ruckhäberle
authors.forename: R
authors.initials: R
authors.lastname: Faber
authors.forename: M
authors.initials: M
authors.lastname: Winkler
mesh_terms: D001783:Blood Flow Velocity / Q000502:physiology; D005260:Female; D005322:Premature Rupture of Fetal Membranes / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000517:prevention & control; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange / Q000502:physiology*; D007752:Obstetric Labor, Premature / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000517:prevention & control; D011247:Pregnancy; D011673:Pulsatile Flow / Q000502:physiology; D012307:Risk Factors; D016216:Ultrasonography, Prenatal / Q000379:methods*; D014469:Umbilical Arteries / Q000000981:diagnostic imaging / Q000503:physiopathology; D014655:Vascular Resistance / Q000502:physiology
vernacular_title: Reproduzierbarkeit dopplersonographischer Blutströmungsprofile der A. umbilicalis unter besonderer Berücksichtigung der drohenden Frühgeburt.