scholarly journals OC022: Quality control in the measurement of nuchal translucency in the first trimester of pregnancy

2003 ◽  
Vol 22 (S1) ◽  
pp. 6-6
Author(s):  
K. Brogan ◽  
J. A. Crossley ◽  
E. J. Stenhouse ◽  
D. A. Aitken ◽  
A. D. Cameron
Keyword(s):  
Quality Control ◽  
First Trimester ◽  
Nuchal Translucency ◽  
First Trimester Of Pregnancy

scholarly journals Prenatal Detection of Fetal Anomalies at the 11- to 13-Week Scan—Part I: Brain, Face and Neck

2013 ◽  
Vol 7 (4) ◽  
pp. 359-368 ◽  
Author(s):  
Tamara Illescas ◽  
Waldo Sepulveda ◽  
Begona Adiego ◽  
Pilar Martinez-Ten
Keyword(s):  
Fetal Brain ◽  
First Trimester ◽  
Nuchal Translucency ◽  
Ultrasound Screening ◽  
Second Trimester ◽  
Fetal Anomalies ◽  
Prenatal Detection ◽  
Ultrasound Findings ◽  
First Trimester Of Pregnancy ◽  
Structural Anomalies

ABSTRACT In the last 20 years, the role of first-trimester ultrasound screening has expanded from individual calculation of the risk of aneuploidy through measurement of the nuchal translucency to a powerful technique to evaluate important aspects of the fetal anatomy. Traditionally, the full anatomy scan for detection of structural anomalies has been performed in the second trimester of pregnancy. However, with the implementation of the first-trimester scan at 11 to 13 weeks of gestation many of the structural anomalies traditionally detected in the second trimester can now be identified earlier in pregnancy. In the first part of this review we discuss the main ultrasound findings that may facilitate the prenatal detection of fetal brain, face and neck abnormalities in the first trimester of pregnancy. How to cite this article Sepulveda W, Illescas T, Adiego B, Martinez-Ten P. Prenatal Detection of Fetal Anomalies at the 11- to 13-Week Scan—Part I: Brain, Face and Neck. Donald School J Ultrasound Obstet Gynecol 2013;7(4):359-368.

scholarly journals Cantrell syndrome in the first trimester of pregnancy: imagistic findings and literature review

2020 ◽  
Vol 22 (2) ◽  
pp. 189 ◽  
Author(s):  
Mihaela Grigore ◽  
Romeo Micu ◽  
Roxana Matasariu ◽  
Odetta Duma ◽  
Anca Lucia Chicea ◽  
...  
Keyword(s):  
Systematic Review ◽  
Rare Condition ◽  
First Trimester ◽  
Nuchal Translucency ◽  
Wall Region ◽  
Pentalogy Of Cantrell ◽  
Congenital Birth Defects ◽  
First Trimester Of Pregnancy ◽  
Us Findings ◽  
Increased Nuchal Translucency

Pentalogy of Cantrell (POC) is a rare condition characterized by complete or partial expression of 5 types of congenital birth defects originating in (1) the lower sternum, (2) the anterior diaphragm, (3) the diaphragmatic pericardium, (4) the midline/ventral supraumbilical abdominal wall region, and (5) the heart. POC can be diagnosed antenatally by means of ultrasonography (US), the task being difficult if defects are minor. Advances in the field of US and the introduction of the first morphology trimester as state-of-the-art pregnancy monitoring, facilitate the early diagnosis of this condition. We performed a systematic review on 67 reported cases of POC diagnosed in the first trimester of pregnancy (published from January 1980 to July 2019). The aim of our systematic review was twofold: to assess the main US findings in the first trimester of pregnancy and to increase awareness of early diagnostic possibilities. Our study showed that POC can be diagnosed in the first trimesterof pregnancy based on key US findings such as the association between omphalocele and ectopia cordis. When these two anomalies are present, increased nuchal translucency can also be considered a marker of POC in the first trimester.

Quality control of ultrasonography markers for Down’s syndrome screening: a retrospective study by the laboratory

Diagnosis ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Blanca Badal ◽  
Antonieta Ballesteros ◽  
Miriam Crespo ◽  
Daniel Morell-Garcia ◽  
Josep Miquel Bauçà ◽  
...  
Keyword(s):  
Quality Control ◽  
Protein A ◽  
Quality Criteria ◽  
First Trimester ◽  
Control Group ◽  
Aneuploidy Screening ◽  
Crown Rump Length ◽  
First Trimester Of Pregnancy ◽  
Cumulative Sum Control

Abstract Objectives Quality control of ultrasonography markers is necessary to ensure greater efficacy of prenatal aneuploidy screening. The aim of this study was to assess the quality of the crown-rump length (CRL) and nuchal translucence (NT) measurement accuracy by the laboratory according to quality indicators. Methods Retrospective observational study on 4,908 single-foetus pregnant women who underwent prenatal aneuploidy screening in the first trimester of pregnancy. Euploid foetuses with CRL between 45 and 84 mm were included, while those with NT≥3.5 mm were excluded. CRL measurement was considered to be accurate if the median multiples of the median (MoM) for pregnancy-associated plasma protein A (PAPP-A) was between 0.90 and 1.10. Fifteen sonographers participated in the study, six of whom comprised the control group. Systematic error for a sonographer was considered when CRL measurement was greater than ±2 mm with respect to the control group. Quality for NT was assured by means of the WHIRI method and each sonographer cumulative sum control chart (CUSUM). Results For CRL accuracy, five sonographers underestimated the measurements, while another four overestimated them, with no statistical differences. For smaller sized foetuses, all sonographers met the established specifications. Regarding NT control, three sonographers did not meet the quality criteria for the median MoM. All sonographers met the specifications for the logarithmic standard deviation of the NT MoM levels. Thirteen sonographers met the CUSUM specifications. Conclusions Evaluation of a quality control of ultrasonography parameters by laboratory professionals is necessary to avoid under- or overestimation tendencies for CRL and NT measurements. CUSUM is a useful tool for the immediate correction of errors in NT measurements.

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