References
- Alcázar JL, Ruiz-Perez ML: Uteroplacental circulation in patients with first-trimester threatened abortion. Fertil Steril 2000; 73: 130–135.
- Deurloo KL, Spreeuwenberg MD, Bolte AC, Van Vugt JM: Color Doppler ultrasound of spiral artery blood flow for prediction of hypertensive disorders and intra uterine growth restriction: a longitudinal study. Prenat Diagn 2007; 27: 1011–1016.
- Vahanian SA, Vintzileos AM: Placental implantation abnormalities: a modern approach. Curr Opin Obstet Gynecol 2016; 28: 477–484.
- Gebb J, Dar P: Colour Doppler ultrasound of spiral artery blood flow in the prediction of pre-eclampsia and intrauterine growth restriction. Best Pract Res Clin Obstet Gynaecol 2011; 25: 355–366.
- Mäkikallio K, Tekay A, Jouppila P: Uteroplacental hemodynamics during early human pregnancy: a longitudinal study. Gynecol Obstet Invest 2004; 58: 49–54.
- Moser G, Huppertz B: Implantation and extravillous trophoblast invasion: From rare archival specimens to modern biobanking. Placenta 2017; 56: 19–26.
- Nanaev AK, Kosanke G, Kemp B, Frank HG, Huppertz B, Kaufmann P: The human placenta is encircled by a ring of smooth muscle cells. Placenta 2000; 21: 122–125.
- Practice Committee of the American Society for Reproductive Medicine: Effectiveness and treatment for unexplained infertility. Fertil Steril 2006; 86: S111–114.
- Düzgüner S, Ozkan MB, Küçüközkan T, Ozkaya E, Kara F, Balın IN et al.: Role of spiral artery Doppler to screen type 2 endometrial cancer cases. J Turk Ger Gynecol Assoc 2014;15: 1–5.
- Uysal S, Ozbay EP, Ekinci T, Aksüt H, Karasu S, Işık AZ et al.: Endometrial spiral artery Doppler parameters in unexplained infertility patients: is endometrial perfusion an important factor in the etiopathogenesis? J Turk Ger Gynecol Assoc 2012; 13: 169–171.
- Pijnenborg R, Vercruysse L, Hanssens M: The uterine spiral arteries in human pregnancy: facts and controversies. Placenta 2006; 27: 939–958.
- Weiss G, Sundl M, Glasner A, Huppertz B, Moser G: The trophoblast plug during early pregnancy: a deeper insight. Histochem Cell Biol 2016; 146: 749–756.
- Pijnenborg R, Vercruysse L, Hanssens M: The uterine spiral arteries in human pregnancy: facts and controversies. Placenta 2006; 27: 939–958.
- Guzin K, Tomruk S, Tuncay YA, Naki M, Sezginsoy S, Zemheri E et al.: The relation of increased uterine artery blood flow resistance and impaired trophoblast invasion in pre-eclamptic pregnancies. Arch Gynecol Obstet 2005; 272: 283–288.
- Lyall F, Robson SC, Bulmer JN: Spiral artery remodeling and trophoblast invasion in preeclampsia and fetal growth restriction: relationship to clinical outcome. Hypertension 2013; 62: 1046–1054.
- Ozkaya U, Ozkan S, Ozeren S, Corakçi A: Doppler examination of uteroplacental circulation in early pregnancy: can it predict adverse outcome? J Clin Ultrasound 2007; 35: 382–386.
- Nagy S, Gardo S. P15.09: First-trimester Doppler assessment of spiral arteries in normal and abnormal pregnancies. Ultrasound in Obstetrics & Gynaecology 2006; 28: 601.
- Zhong Y, Tuuli M, Odibo AO: First-trimester assessment of placenta function and the prediction of preeclampsia and intrauterine growth restriction. Prenatal Diagnosis 2010; 30: 293–308.
- Gómez O, Figueras F, Fernández S, Bennasar M, Martínez JM, Puerto B, et al.: Reference ranges for uterine artery mean pulsatility index at 11–41 weeks of gestation. Ultrasound Obstet Gynecol 2008; 32: 128–132.
- Helmy S, Bader Y, Koch M, Tiringer D, Kollmann C: Measurement of thermal effects of Doppler ultrasound: an in vitro study. PLoS One. 2015; 10: e0135717.
- Barnett SB, Maulik D, International Perinatal Doppler Society: Guidelines and recommendations for safe use of Doppler ultrasound in perinatal applications. J Matern Fetal Med 2001; 10: 75–84.
- Sheiner E, Abramowicz JS: A symposium on obstetrical ultrasound: is all this safe for the fetus? Clin Obstet Gynecol 2012; 55: 188–198.
- Torloni MR, Vedmedovska N, Merialdi M, Betran AP, Allen T et al.: Safety of ultrasonography in pregnancy: WHO systematic review of the literature and meta-analysis. Ultrasound Obstet Gynecol 2009; 33: 599–608.
- Meizner I: What do doctors understand regarding ultrasound safety during pregnancy?. Harefuah 2012; 151: 234–236.
- Salvesen KÅ, Lees C, Abramowicz J, Brezinka C, Ter Haar G, Maršál K: Safe use of Doppler ultrasound during the 11 to 13 + 6-week scan: is it possible? Ultrasound Obstet Gynecol 2011; 37: 625–628.
- Abramowicz, JS, Kossoff, G, Marsal, K, Ter Haar, G. International Society of Ultrasound in Obstetrics and Gynaecology Bioeffects and Safety Committee. Executive Board of the International Society of Ultrasound in Obstetrics and Gynaecology. Safety Statement, 2000 (reconfirmed 2003). International Society of Ultrasound in Obstetrics and Gynaecology (ISUOG). Ultrasound Obstet Gynecol 2003;21:100.
- Barnett SB, Ter Haar GR, Ziskin MC, Rott HD, Duck FA, Maeda K: International recommendations and guidelines for the safe use of diagnostic ultrasound in medicine. Ultrasound Med Biol 2000; 26: 355–366.
- Ter Haar G. The new British Medical Ultrasound Society Guidelines for the safe use of diagnostic ultrasound equipment. Ultrasound 2010; 18: 50–51.