title: [PI index value in fetal ductus venosus blood flow at 11-14 weeks in normal course of pregnancy].
abstract: OBJECTIVE
  Development of ultrasound diagnostic with Doppler examination allows early and and more precise assessement of fetal anatomy and well-being.
  
  
  METHODS
  Evaluation of blood flow parameters in fetal ductus venosus between 11 and 14 weeks of pregnancy was performed.
  
  
  METHODS
  Fetal anatomy, nuchal translucency, nasal bone and ductus venosus blood flow has been studied with transabdominal probe in 225 consecutive fetuses according to Fetal Medicine Foundation recommendations.
  
  
  RESULTS
  From total number of 225 cases finally ten women were excluded from analysis due to absent or reversed A-wave in DV blood flow. In remaining 215 cases mean value of PI was 0,94 (range 0,53-1,88), mean value of Vmax (S-wave) was 42,48cm/s (range 18,7-102,9cm/sek), and mean value of Vmin (A-wave)--11,91cm/s (range 1,13- 37,32 cm/sek).
  
  
  CONCLUSIONS
  PI index value slightly decreased with increasing CRL. There was no differences in mean blood flow velocity with CRL for S-wave. A decrease in mean blood flow velocity with CRL was noted for A-wave.
authors.affiliation: Klinika Połoznictwa i Ginekologii Instytutu Matki i Dziecka w Warszawie. renatajaczynska@tlen.pl
authors.forename: Renata
authors.initials: R
authors.lastname: Jaczyńska
authors.forename: Dariusz
authors.initials: D
authors.lastname: Borowski
authors.forename: Bartosz
authors.initials: B
authors.lastname: Czuba
authors.forename: Agata
authors.initials: A
authors.lastname: Włoch
authors.forename: Piotr
authors.initials: P
authors.lastname: Kaczmarek
authors.forename: Dorota
authors.initials: D
authors.lastname: Wyrwas
authors.forename: Mirosław
authors.initials: M
authors.lastname: Wielgoś
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Szaflik
authors.forename: Krzysztof Tomasz
authors.initials: KT
authors.lastname: Niemiec
mesh_terms: D000328:Adult; D004373:Ductus Arteriosus / Q000000981:diagnostic imaging*; D005260:Female; D005333:Fetus / Q000098:blood supply*; D006801:Humans; D009333:Neck / Q000000981:diagnostic imaging*; D011247:Pregnancy; D011673:Pulsatile Flow / Q000502:physiology; D012016:Reference Values; D012680:Sensitivity and Specificity; D018617:Ultrasonography, Doppler, Pulsed; D016216:Ultrasonography, Prenatal / Q000379:methods