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Original Article

Modelling umbilical vein blood flow normograms at 14–40 weeks of gestation by quantile regression analysis

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Pages 701-706 | Received 31 Dec 2014, Accepted 12 Feb 2015, Published online: 18 Mar 2015

References

  • Rudolph AM. Distribution and regulation of blood flow in the fetal and neonatal lamb. Circ Res 1985;57:811–21
  • Galan HL, Jozwik M, Rigano S, et al. Umbilical vein blood flow determination in the ovine fetus: comparison of Doppler ultrasonographic and steady-state diffusion techniques. Am J Obstet Gynecol 1999;181:1149–53
  • Najafzadeh A, Dickinson JE. Umbilical venous blood flow and its measurement in the human fetus. J Clin Ultrasound 2012;40:502–11
  • Gill RW, Kossoff G, Warren PS, Garrett WJ. Umbilical venous flow in normal and complicated pregnancy. Ultrasound Med Biol 1984;10:349–63
  • Jouppila P, Kirkinen P. Umbilical vein blood flow as an indicator of fetal hypoxia. Br J Obstet Gynaecol 1984;91:107–10
  • Eik-Nes SH, Marsal K, Brubakk AO, et al. Ultrasonic measurement of human fetal blood flow. J Biomed Eng 1982;4:28–36
  • Ferrazzi E, Rigano S, Bozzo M, et al. Umbilical vein blood flow in growth-restricted fetuses. Ultrasound Obstet Gynecol 2000;16:432–8
  • Boito S, Struijk PC, Ursem NT, et al. Umbilical venous volume flow in the normally developing and growth-restricted human fetus. Ultrasound Obstet Gynecol 2002;19:344–9
  • Figueras F, Fernández S, Hernández-Andrade E, Gratacós E. Umbilical venous blood flow measurement: accuracy and reproducibility. Ultrasound Obstet Gynecol 2008;32:587–9
  • Ferrazzi E. Measurement of venous blood flow in the human fetus: a dream comes true, but now for some standardization. Ultrasound Obstet Gynecol 2001;18:1–4
  • Rizzo G, Capponi A, Cavicchioni O, et al. Low cardiac output to the placenta: an early hemodynamic adaptive mechanism in growth restriction. Ultrasound Obstet Gynecol 2008;32:155–9
  • Prior T, Mullins E, Bennett P, Kumar S. Prediction of fetal compromise in labor. Obstet Gynecol 2014;123:1263–71
  • Ebbing C, Rasmussen S, Kiserud T. Fetal hemodynamic development in macrosomic growth. Ultrasound Obstet Gynecol 2011;38:303–8
  • Acharya G, Wilsgaard T, Rosvold Berntsen GK, et al. Reference ranges for umbilical vein blood flow in the second half of pregnancy based on longitudinal data. Prenat Diagn 2005;25:99–111
  • Bellotti M, Pennati G, De Gasperi C, et al. Role of ductus venosus in distribution of umbilical blood flow in human fetuses during second half of pregnancy. Am J Physiol Heart Circ Physiol 2000;279:H1256–63
  • Wei Y, Pere A, Koenker R, He X. Quantile regression methods for reference growth curves. Stat Med 2006;25:1369–82
  • Koenker R, Basset G. Regression quantiles. Econometrica 1978;46:33–50
  • Rizzo G, Capponi A, Pietrolucci ME, Arduini D. Umbilical vein blood flow at 11 + 0 to 13 + 6 weeks of gestation. J Matern Fetal Neonatal Med 2010;23:315–9
  • Rizzo G, Capponi A, Aiello E, Arduini D. First-trimester assessment of umbilical vein diameter using the semiautomated system for nuchal translucency measurement. Ultrasound Obstet Gynecol 2011;37:741–2
  • Rigano S, Bozzo M, Ferrazzi E, et al. Early and persistent reduction in umbilical vein blood flow in the growth-restricted fetus: a longitudinal study. Am J Obstet Gynecol 2001;185:834–8
  • Koenker R. Quantreg: an R package for quantile regression and related methods. The Comprehensive R Archive Network website; 2004. Available from: http://cran.r-project.org [last accessed 30 Dec 2014]
  • The R Foundation for Statistical Computing. R version 2.13.1. The R Foundation for Statistical Computing website; 2011. Available from: http://www.r-project.org/foundation/
  • Bland JM, Altman DG. Applying the right statistics analyses of measurement studies. Ultrasound Obstet Gynecol 2003;22:85–93
  • Daniel-Spiegel E1, Weiner E, Yarom I, et al. Establishment of fetal biometric charts using quantile regression analysis. J Ultrasound Med 2013;32:23–33

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