Reproducibility study of crown-rump length and biparietal diameter measurements in the first trimester

2012 ◽  
Vol 32 (12) ◽  
pp. 1158-1165 ◽  
Author(s):  
Athena P. Souka ◽  
Athanasios Pilalis ◽  
Ioannis Papastefanou ◽  
George Salamalekis ◽  
Dimitrios Kassanos
Keyword(s):  
First Trimester ◽  
Crown Rump Length ◽  
Reproducibility Study ◽  
Biparietal Diameter

scholarly journals The Association of Maternal Age With Fetal Growth and Newborn Measures: The Mumbai Maternal Nutrition Project (MMNP)

2018 ◽  
Vol 26 (7) ◽  
pp. 918-927 ◽  
Author(s):  
Chiara Di Gravio ◽  
Ashwin Lawande ◽  
Ramesh D. Potdar ◽  
Sirazul A. Sahariah ◽  
Meera Gandhi ◽  
...  
Keyword(s):  
Fetal Growth ◽  
Maternal Age ◽  
Maternal Nutrition ◽  
First Trimester ◽  
Abdominal Circumference ◽  
Crown Rump Length ◽  
Fetal Biometry ◽  
Biparietal Diameter ◽  
Using Data ◽  
Newborn Size

Background: Young maternal age is associated with poorer birth outcomes, but the mechanisms are incompletely understood. Using data from a prospective cohort of pregnant women living in Mumbai slums, India, we tested whether lower maternal age was associated with adverse fetal growth. Methods: Fetal crown-rump length (CRL) was recorded at a median (interquartile range, IQR) of 10 weeks’ gestation (9-10 weeks). Head circumference (HC), biparietal diameter (BPD), femur length (FL), and abdominal circumference (AC) were recorded at 19 (19-20) and 29 (28-30) weeks. Newborns were measured at a median (IQR) of 2 days (1-3 days) from delivery. Gestation was assessed using prospectively collected menstrual period dates. Results: The sample comprised 1653 singleton fetuses without major congenital abnormalities, of whom 1360 had newborn measurements. Fetuses of younger mothers had smaller CRL (0.01 standard deviation [SD] per year of maternal age; 95% confidence interval CI: 0.00-0.02 1 ; P = .04), and smaller HC, FL, and AC at subsequent visits. Fetal growth of HC (0.04 cm; 95% CI: 0.02-0.05; P < .001), BPD (0.01 cm; 95% CI: 0.00-0.01; P = .009), FL (0.04 cm; 95% CI: 0.02-0.06; P < .001), and AC (0.01 cm; 95% CI: 0.00-0.01; P = .003) up to the third trimester increased with maternal age. Skinfolds, head, and mid-upper arm circumferences were smaller in newborns of younger mothers. Adjusting for maternal prepregnancy socioeconomic status, body mass index, height, and parity attenuated the associations between maternal age and newborn size but did not change those with fetal biometry. Conclusion: Fetuses of younger mothers were smaller from the first trimester onward and grew slower, independently of known confounding factors.

Biparietal Diameter-to-Crown-Rump Length Disproportion in First-Trimester Fetuses With Holoprosencephaly

2014 ◽  
Vol 33 (7) ◽  
pp. 1165-1169 ◽  
Author(s):  
Waldo Sepulveda ◽  
Amy E. Wong ◽  
Elena Andreeva ◽  
Natalia Odegova ◽  
Pilar Martinez-Ten ◽  
...  
Keyword(s):  
First Trimester ◽  
Crown Rump Length ◽  
Biparietal Diameter

Estimation of gestational age during the first trimester by real-time measurement of fetal crown-rump length and biparietal diameter

1981 ◽  
Vol 9 (2) ◽  
pp. 71-75 ◽  
Author(s):  
Luciano Bovicelli ◽  
Luigi F. Orsini ◽  
Nicola Rizzo ◽  
Patrizio Calderoni ◽  
Francesco L. Pazzaglia ◽  
...  
Keyword(s):  
Real Time ◽  
Gestational Age ◽  
First Trimester ◽  
Time Measurement ◽  
Crown Rump Length ◽  
Real Time Measurement ◽  
Biparietal Diameter

Crown–rump length measurement: a new age for first‐trimester ultrasound?

2021 ◽  
Author(s):  
J. Stirnemann ◽  
M. Massoud ◽  
N. Fries ◽  
C. Dumont ◽  
G. Haddad ◽  
...  
Keyword(s):  
First Trimester ◽  
New Age ◽  
Length Measurement ◽  
Crown Rump Length ◽  
First Trimester Ultrasound

scholarly journals Frontomaxillary Facial Angle Measurement in Screening for Trisomy 18 at 11 + 0 to 13 + 6 Weeks of Pregnancy: A Double-Centre Study

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Bartosz Czuba ◽  
Wojciech Cnota ◽  
Agata Wloch ◽  
Piotr Wegrzyn ◽  
Krzysztof Sodowski ◽  
...  
Keyword(s):  
Final Analysis ◽  
First Trimester ◽  
Nuchal Translucency ◽  
Angle Measurement ◽  
Trisomy 18 ◽  
Crown Rump Length ◽  
Beta Hcg ◽  
Large Populations ◽  
Trimester Screening ◽  
Independent Marker

Objective. The aim of this study was to evaluate the effectiveness of prenatal screening for trisomy 18 with the use of the frontomaxillary facial angle (FMF angle) measurement.Material and Methods. The study involved 1751 singleton pregnancies at 11–13 + 6 weeks, examined between 2007 and 2011. Serum PAPP-A and free beta-hCG levels were assessed, and crown-rump length, nuchal translucency, and FMF angle were measured in all patients. 1350 fetuses with known follow-up were included in the final analysis.Results. Highly significant (P<0.01) negative correlation between the CRL and the FMF angle was found. There were 30 fetuses with trisomy 18. FMF angle was highly significantly larger (P<0.0001) in fetuses with trisomy 18 as compared to chromosomally normal fetuses. Two models of first trimester screening were compared: Model 1 based on maternal age, NT, and first trimester biochemistry test (DR 80–85% and FPR 0.3–0.6%), and Model 2 = Model 1 + FMF angle measurement (DR 87.3–93.3% and FPR 0.8–1.3%).Conclusions. The use of FMF angle measurement increases the effectiveness of the screening for trisomy 18. Introduction of the FMF angle as an independent marker for fetal trisomy 18 risk requires further prospective research in large populations.

Screening for fetal spina bifida by ultrasound examination in the first trimester of pregnancy using fetal biparietal diameter

2012 ◽  
Vol 207 (4) ◽  
pp. 306.e1-306.e5 ◽  
Author(s):  
Jean-Pierre Bernard ◽  
Howard S. Cuckle ◽  
Julien J. Stirnemann ◽  
Laurent J. Salomon ◽  
Yves Ville
Keyword(s):  
Spina Bifida ◽  
Ultrasound Examination ◽  
First Trimester ◽  
Biparietal Diameter ◽  
First Trimester Of Pregnancy

First-trimester fetal growth discordance and development of preeclampsia in dichorionic twin pregnancies

2015 ◽  
Vol 43 (6) ◽  
Author(s):  
Tanya Maric ◽  
Natasha Singh ◽  
Keith Duncan ◽  
Guy J. Thorpe-Beeston ◽  
Makrina D. Savvidou
Keyword(s):  
Fetal Growth ◽  
Case Control Study ◽  
Subsequent Development ◽  
First Trimester ◽  
Case Control ◽  
Retrospective Case ◽  
Crown Rump Length ◽  
Significant Difference ◽  
Twin Pregnancies ◽  
Control Study

AbstractTo investigate the relation between first-trimester fetal growth discrepancy, as assessed by crown-rump length (CRL) at 11+0 to 13+6 weeks of gestation, and subsequent development of preeclampsia (PE) in dichorionic diamniotic (DCDA) twin pregnancies. The association between inter-twin CRL and birth weight (BW) discrepancy was also investigated.This was a retrospective, case-control study of DCDA twin pregnancies. Inter-twin CRL discrepancy was calculated as 100×(larger CRL–smaller CRL)/larger CRL. BW discordance was calculated as 100×(larger BW–smaller BW)/larger BW.The study included 299 DCDA pregnancies that remained normotensive and 35 that subsequently developed PE. There was no significant difference in the inter-twin CRL discrepancy between pregnancies complicated by PE and those that were not [3.2%, interquartile range (IQR): 0.5–4.5% vs. 3.3%, IQR: 1.4–5.5%; P=0.17]. There was a positive correlation between inter-twin CRL and BW discrepancy but only in pregnancies that remained normotensive (P<0.001). In women that subsequently developed PE, there was no association between inter-twin CRL and BW discordance (P=0.54).In unselected DCDA twins, first-trimester CRL discrepancy is not different between pregnancies that subsequently develop PE and those that remain normotensive. Furthermore, in pregnancies that are complicated by PE, the association between inter-twin CRL and BW discrepancy appears to be lost.

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