نتایج جستجو برای: nuchal translucency measurement

تعداد نتایج: 443386  

2011
Mojgan Barati Mahvash Zargar Sara Masihi Sima Taherpour

BACKGROUND A significant number of pregnancies, particularly in women with previous histories of infertility, are associated with fetal abnormalities. Methods such as the nuchal translucency (NT) measurement enable us to identify more pregnancies with chromosomal abnormalities. MATERIALS AND METHODS This analytic cross-sectional study was performed in 446 pregnant women at 11-14 weeks gestati...

2013
Hanna Moczulska Katarzyna Janiak Maciej Słodki Maria Respondek-Liberska

INTRODUCTION Numerous papers have proven that an increased nuchal translucency is connected with a raised risk of chromosomal aberrations, but few analyses are related to the further state of fetuses with a normal karyotype. THE AIM OF THE STUDY The aim of the study was to estimate the risk of cardiac defects and other developmental disorders in fetuses with increased nuchal translucency and ...

Journal: :European heart journal 2009
Thijs Delnoij Robert Jan van Suylen Jack P M Cleutjens Simon Schalla Sebastiaan C A M Bekkers

1980s. Am J Med Genet 1989;34:366–390. 18. Makrydimas G, Sotiriadis A, Huggon IC, Simpson J, Sharland G, Carvalho JS, Daubeney PE, Ioannidis JP. Nuchal translucency and fetal cardiac defects: a pooled analysis of major fetal echocardiography centers. Am J Obstet Gynecol 2005;192:89–95. 19. Atzei A, Gajewska K, Huggon IC, Allan L, Nicolaides KH. Relationship between nuchal translucency thickness...

Background: To evaluate the role of 3D, 4D and color Doppler ultrasound (US) in the assessment of early human development. Materials and Methods: 380 women with uncomplicated early pregnancy between 5 and 14 weeks were evaluated by 3D, 4D and color Doppler US. Results: Regression analysis revealed exponential rise of the gestational sac volume with gestational age throughout the first trimester...

1999
Natasha Tul Kevin Spencer Penelope Noble Christine Chan Kypros Nicolaides

In a study of 50 cases of trisomy 18 compared with 947 controls we have found the median multiple of the median (MoM) of maternal serum free human chorionic gonadotrophin to be significantly decreased (0.281 MoM) in samples collected between the 10th and 14th week of gestation. Similarly, maternal serum pregnancy associated plasma protein A (PAPP-A) levels are also decreased (0.177 MoM), whilst...

Journal: :IOSR Journal of Dental and Medical Sciences 2016

2013
Ksenija Gersak Darija M. Strah Maja Pohar-Perme

Nuchal translucency (NT) is the assessment of the amount of fluid behind the neck of the fetus, also known as the nuchal fold. An anechoic space is visible and measurable sonographically in all fetuses between the 11th and the 14th week of the pregnancy (Figure 1). Underlying patho‐ physiological mechanisms for nuchal fluid collection under the skin include cardiac dysfunc‐ tion, venous congest...

Journal: :Prenatal diagnosis 2014
Nicole B Burger Kyra E Stuurman Evelien Kok Tanja Konijn Dennis Schooneman Karen Niederreither Mark Coles William W Agace Vincent M Christoffels Reina E Mebius Serge A van de Pavert Mireille N Bekker

OBJECTIVE Increased nuchal translucency originates from disturbed lymphatic development. Abnormal neural crest cell (NCC) migration may be involved in lymphatic development. Because both neuronal and lymphatic development share retinoic acid (RA) as a common factor, this study investigated the involvement of NCCs and RA in specific steps in lymphatic endothelial cell (LEC) differentiation and n...

Journal: :Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2005
H Vandecruys S Faiola M Auer N Sebire K H Nicolaides

OBJECTIVE To determine whether in screening for trisomy 21 by measurement of fetal nuchal translucency (NT) thickness in monochorionic twin pregnancies it is preferable to use the higher, smaller or average NT. METHODS We retrospectively examined 769 monochorionic twin pregnancies that had undergone NT screening. The selection criteria were that first, in each pregnancy both fetuses were aliv...

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