title: [Ductus venosus blood flow in normal pregnancy outcome].
abstract: OBJECTIVE
  Doppler studies of the fetal circulation have demonstrated the importance of ductus venosus velocimetry in the monitoring abnormal course of pregnancy.
  
  
  METHODS
  Estimation of the ductus venosus Doppler reference ranges between 10-19th week of pregnancy.
  
  
  METHODS
  The ductus venosus blood flow has been studied in 140 consecutive fetuses between 10 and 19 week of pregnancy. When a midsagittal view of the fetus was obtained, color Doppler was used to visualize the ductus venosus. The pulsed Doppler sample volume was then placed on it, in the isthmic portion.
  
  
  RESULTS
  The mean PIV ranged from 1.09 in the first trimester of pregnancy to 0.96 in the second trimester.
  
  
  CONCLUSIONS
  A decrease in mean PIV values was observed in the course of pregnancy. In the normal course of pregnancy A-wave was observed.
authors.affiliation: Instytutu Ginekologii i Połoznictwa UM w łodzi.
authors.forename: Elzbieta
authors.initials: E
authors.lastname: Baś-Budecka
authors.forename: Jacek
authors.initials: J
authors.lastname: Suzin
authors.forename: Piotr
authors.initials: P
authors.lastname: Sieroszewski
mesh_terms: D000328:Adult; D001783:Blood Flow Velocity / Q000502:physiology; D005260:Female; D005333:Fetus / Q000098:blood supply*; D018056:Hemorheology; D006801:Humans; D011247:Pregnancy; D011256:Pregnancy Outcome; D011261:Pregnancy Trimester, First; D018608:Ultrasonography, Doppler; D016216:Ultrasonography, Prenatal; D014469:Umbilical Arteries / Q000502:physiology; D014471:Umbilical Veins / Q000000981:diagnostic imaging / Q000502:physiology*