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Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine|March 21, 2015
Prenatal detection of congenital heart defects at the 11- to 13-week scan using a simple color Doppler protocol including the 4-chamber and 3-vessel and trachea viewsMarcin Wiechec, Anna Knafel, Agnieszka NocunGinekologia Polska|June 9, 2026
Limitations of fixed risk thresholds in first-trimester combined screening for trisomy 21Paula I Szenejko, Marcin Wiechec, Filip DabrowskiJournal of Clinical Ultrasound : JCU|August 4, 2011
Fetal transverse limb defects: case series and literature reviewFerha Saeed, Gowrishankar Paramasivam, Marcin Wiechec, et al.Ginekologia Polska|July 1, 2026
Evaluation of the INTERGROWTH 21st fetal growth standards in a single-center cohort of uncomplicated pregnancies in PolandKatarzyna Pilecka, Rafal P Szpak, Alicja Zachara, et al.Journal of Perinatal Medicine|February 27, 2015
First trimester severe ductus venosus flow abnormalities in isolation or combination with other markers of aneuploidy and fetal anomaliesMarcin Wiechec, Agnieszka Nocun, Anna Matyszkiewicz, et al.Journal of Perinatal Medicine|May 7, 2014
First trimester tricuspid regurgitation and fetal abnormalitiesMarcin Wiechec, Agnieszka Nocun, Ewa Wiercinska, et al.Ginekologia Polska|January 24, 2022
Ultrasound differentiation between benign versus malignant adnexal masses in pregnant patientsEwa Rabiej-Wronska, Marcin Wiechec, Kazimierz Pitynski, et al.Przeglad Lekarski|April 26, 2018
Ultrasound evaluation of inferior facial angle (IFA) in a population of normal fetuses at 11-13 weeks (+6 days) gestationMaciej Orzechowski, Anna Knafel, Tomasz Banas, et al.Journal of Perinatal Medicine|March 25, 2015
How effective is ultrasound-based screening for trisomy 18 without the addition of biochemistry at the time of late first trimester?Marcin Wiechec, Anna Knafel, Agnieszka Nocun, et al.The Journal of Maternal-Fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians|August 6, 2016
What are the most common first-trimester ultrasound findings in cases of Turner syndrome?Marcin Wiechec, Anna Knafel, Agnieszka Nocun, et al.Pageof 2