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 Early Prediction of Twin-to-Twin Transfusion Syndrome with the use of First Trimester Ultrasound Markers: Is it Possible?

2013 ◽  
Vol 7 (1) ◽  
pp. 66-72
Author(s):  
Panagiotis Antsaklis ◽  
Marianna Theodora ◽  
Aristides Antsaklis ◽  
Vasileios Pergialiotis ◽  
Vasileios Papazefkos
Keyword(s):  
Prospective Studies ◽  
Obstet Gynecol ◽  
Reference Lists ◽  
First Trimester ◽  
Nuchal Translucency ◽  
Ductus Venosus ◽  
Early Prediction ◽  
Crown Rump Length ◽  
Assisted Reproduction Techniques ◽  
First Trimester Ultrasound

ABSTRACT Background The incidence of multifetal gestation and particularly of twin pregnancy has raised as a result of the introduction of assisted reproduction techniques (ART). Twinto- twin transfusion syndrome (TTTS) is a serious complication observed in monochorionic pregnancies producing severe morbidity and ultimately resulting in loss of one or all fetuses. We assessed the potential of early prediction of TTTS among three markers screened early in pregnancy [nuchal translucency (NT)] and its discrepancy and discordance, crown-rump length (CRL) and its discrepancy and discordance among twins and ductus venosus (DV) Doppler abnormalities. Materials and methods We conducted a systematic review searching Medline (1966-2011) and Scopus (2004-2011) engines, as well as reference lists from all included studies. Twelve studies were finally enrolled in the present review, including seven prospective studies, three prospective studies and one that could not be defined either as prospective or retrospective. Conclusion It seems that DV Doppler may denote this syndrome's possible future development and should be assessed early in monochorionic pregnancies. Further studies are definitely needed in order to evaluate the place of CRL and NT discrepancy and discordance in predicting TTTS. How to cite this article Antsaklis A, Pergialiotis V, Theodora M, Papazefkos V, Antsaklis P. Early Prediction of Twin-to-Twin Transfusion Syndrome with the use of First Trimester Ultrasound Markers: Is it Possible? Donald School J Ultrasound Obstet Gynecol 2013;7(1):66-72.

The Value of Detailed First-Trimester Ultrasound Anomaly Scan for the Detection of Chromosomal Abnormalities

2018 ◽  
Vol 40 (06) ◽  
pp. 743-748
Author(s):  
Ismail Tekesin
Keyword(s):  
Turner Syndrome ◽  
Trisomy 21 ◽  
Detection Rate ◽  
First Trimester ◽  
Trisomy 18 ◽  
Trisomy 13 ◽  
Ductus Venosus ◽  
Ultrasound Screening ◽  
Crown Rump Length ◽  
First Trimester Ultrasound

Abstract Purpose To evaluate the performance of first-trimester ultrasound screening involving a detailed anomaly scan for the detection of trisomy 18, trisomy 13, triploidy, Turner syndrome and trisomy 21. Methods Data of pregnant women who underwent aneuploidy screening at 11–13 weeks of gestation was retrospectively analyzed. Crown-rump length (CRL), fetal nuchal translucency thickness (NT) and nasal bone (NB) anatomy, blood flow across the tricuspid valve (TV) and through the ductus venosus (DV) were assessed. Furthermore, a detailed scan for fetal anatomical anomalies (FA) was carried out. Performance of these markers was assessed by logistic regression and ROC analyses for different screening models. Results 4005 fetuses were analyzed. 3856 were euploid, 149 aneuploid (trisomy 18: 40; trisomy 13: 14; triploidy: 3; Turner syndrome: 17; trisomy 21: 75 cases). 70–100 % of the fetuses with trisomy 18 and 13, triploidy and Turner syndrome but only 34.7 % with trisomy 21 had at least one fetal defect. Considering all aneuploidies, the detection rate (DR) for screening based on MA+NT+NB+TV+DV was 90.6 % and improved to 96.0 % if an FA was added (fixed false-positive rate: 3 %). If screening was based on MA+NT+FA, the detection rate for all aneuploidies was 85.2 %. However, the DR for trisomy 18, trisomy 13, triploidy and Turner syndrome (excluding trisomy 21) was 94.6 %, indicating the high diagnostic value of an anomaly scan for these aneuploidies. Conclusion Incorporation of a detailed fetal anomaly scan (FA) into first-trimester screening algorithms can improve the detection rates for trisomy 18 and 13, triploidy and Turner syndrome.

scholarly journals Impact of bias in crown-rump length measurement at first-trimester screening for trisomy 21

2012 ◽  
Vol 40 (2) ◽  
pp. 135-139 ◽  
Author(s):  
K. O. Kagan ◽  
M. Hoopmann ◽  
A. Baker ◽  
M. Huebner ◽  
H. Abele ◽  
...  
Keyword(s):  
Trisomy 21 ◽  
First Trimester ◽  
Length Measurement ◽  
First Trimester Screening ◽  
Crown Rump Length ◽  
Trimester Screening

First trimester dating by fetal heart rate assessment: a comparison with crown-rump length measurement

2014 ◽  
Vol 28 (1) ◽  
pp. 68-70 ◽  
Author(s):  
Sarah G. Obican ◽  
Slava Khodak-Gelman ◽  
Angelo Elmi ◽  
John W. Larsen ◽  
Alexander M. Friedman
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
First Trimester ◽  
Length Measurement ◽  
Crown Rump Length

Spine length measurement in the first trimester of pregnancy

2002 ◽  
Vol 22 (9) ◽  
pp. 818-822 ◽  
Author(s):  
P. De Biasio ◽  
G. Ginocchio ◽  
M. Vignolo ◽  
G. Ravera ◽  
P. L. Venturini ◽  
...  
Keyword(s):  
First Trimester ◽  
Length Measurement ◽  
Spine Length ◽  
First Trimester Of Pregnancy
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