Results 171 to 180 of about 1,919 (215)

Optimising the timing for nuchal translucency measurement

Prenatal Diagnosis, 2002
AbstractIt appears from current evidence that the most effective screening strategy for Down syndrome will involve a combination of first trimester nuchal translucency and serum biochemistry, whether performed in the first or second trimester. The aim of this study was to determine the optimum gestation based upon menstrual dates at which to schedule ...
Euan M. Wallace, Paul A Shekleton, Jacqui Oldham, Andrew Edwards, Lesleigh S Baker, Sheila Mulvey   +5 more
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Automatic detection and measurement of nuchal translucency

Computers in Biology and Medicine, 2017
In this paper we propose a new methodology to support the physician both to identify automatically the nuchal region and to obtain a correct thickness measurement of the nuchal translucency. The thickness of the nuchal translucency is one of the main markers for screening of chromosomal defects such as trisomy 13, 18 and 21.
Domenico Tegolo, Giuseppa Sciortino, Cesare Valenti   +2 more
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Variability of Nuchal Translucency Measurement

Gynecologic and Obstetric Investigation, 2005
<i>Objectives:</i> To evaluate intra- and inter-observer variations of nuchal translucency (NT) measurements and study the duration of measurements. <i>Subjects:</i> One hundred and forty-seven singleton pregnant women with 10–14 weeks of gestation who had attended antenatal clinic during January 1st, 2000–August 31st, 2001 were
Visit Prasartwanakit, Supatra Sirichotiyakul, Chitkasaem Kengpol, Theera Tongsong, Thitima Suntharasaj, Thawalwong Ratanasiri, Pilaiwan Kleebkaow, Ounjai Kor-anantakul, Roengsak Leetanaporn, Pharuhas Chanprapaph   +9 more
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The effect of image size on nuchal translucency measurement

Prenatal Diagnosis, 2003
AbstractObjectivesTo assess the effect of altering image size on the absolute nuchal translucency (NT) measurement.MethodsNT was measured at three image magnifications (60%, 100% and 200%) in 120 singleton pregnancies.ResultsThe mean ± SD NT measurements were 1.52 ± 0.57 mm, 1.35 ± 0.53 mm and 1.18 ± 0.48 mm at 60%, 100% and 200% magnification ...
Sheila Mulvey, Euan M. Wallace, Andrew Edwards   +2 more
openaire   +3 more sources

Quality of nuchal translucency measurements in multifetal pregnancies

The Journal of Maternal-Fetal & Neonatal Medicine, 2006
A prospective comparative study was conducted to investigate the effect of multifetal pregnancies on the quality of nuchal translucency measurements using an image scoring method.The study sample included 72 consecutive multiple gestations (164 fetuses) and 195 singleton gestations (control) matched for maternal age and fetal crown-rump length.
Simion Meltcer, Eyal Y. Anteby, Jacob Rabinson, Raoul Orvieto, Efraim Zohav, Octav Segal   +5 more
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Quality Management of Nuchal Translucency Measurement in Residents

Ultraschall in der Medizin - European Journal of Ultrasound, 2007
The measurement of the nuchal translucency (NT) in the 1st trimester is a sensitive, reliable method to assess the risk of specific fetal chromosomal and other defects. Training, however, is an issue not only among experienced sonographers, but especially for ObGyn residents, since all NT measurements in a true screening setting should fulfil the ...
Sevgi Tercanli, B. Frey Tirri, Carolyn Troeger, Wolfgang Holzgreve   +3 more
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Repeatability of measurement of fetal nuchal translucency thickness

Ultrasound in Obstetrics & Gynecology, 1995
AbstractThe aim of this prospective study was to assess the repeatability of measurement of fetal nuchal translucency thickness at 10–14 weeks' gestation. The nuchal translucency was measured by two of four operators in 200 pregnant women attending the Harris Birthright Research Centre for Fetal Medicine at 10–14 weeks' gestation.
Pranav Pandya, Maria de Lourdes Brizot, H. Pettersen, K. H. Nicolaides, Douglas G. Altman   +4 more
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Technical Aspects of Nuchal Translucency Measurement

Seminars in Perinatology, 2005
Nuchal translucency (NT) describes an echo-free area, below the skin, in the posterior nuchal and back region of the fetus and is typically observed in the first and early second trimester of pregnancy. A wide NT has been correlated with chromosomal and congenital abnormalities in the fetus.
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Nuchal translucency scans complicated by nuchal cord – Are we measuring correctly?

Sonography, 2017
AbstractObjectiveTo evaluate the affect nuchal cord (NC) may have on nuchal translucency (NT) thickness. To identify the sonographic features of NC complication in NT scans and to determine how these features are interpreted by sonographers complying to current Fetal Medicine Foundation (FMF) NT imaging guidelines.MethodsRetrospective review of 200 ...
Scott Carroll, Nayana Parange
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Quality of nuchal translucency measurements in The Netherlands: a quantitative analysis

Ultrasound in Obstetrics & Gynecology, 2009
AbstractObjectiveThe Dutch Centre for Population Research has specified quality demands for nuchal translucency (NT) measurement in The Netherlands. We performed an analysis of the quality of NT measurement in 2005–2006 and its influence on screening performance.MethodsThis was a retrospective study of records of NT measurements (n = 27 738) obtained ...
M. P. H. Koster, M. P. H. Koster, E. J. Wortelboer, L. H. Elvers, P. Stoutenbeek, M.A.M.J. Engels, P. C. J. I. Schielen, Gerard H. A. Visser   +7 more
openaire   +5 more sources