M. Duyme

Fetal lung volumetry using two‐ and three‐dimensional ultrasound

To compare methods of measuring fetal pulmonary volume and to establish nomograms of fetal pulmonary volume according to gestational age for the accurate diagnosis of pulmonary hypoplasia.

The impact of choice of reference charts and equations on the assessment of fetal biometry

The assessment of fetal biometry is usually based on the comparison of measured values with predicted values derived from reference charts or equations in a normal population. This study was undertaken to assess the impact of the choice of reference charts and to develop a Z‐score‐based tool that could help sonographers to choose the reference charts that best fit their practice.

Growth discrepancy in twins in the first trimester of pregnancy

The prevalence and significance of intertwin growth discrepancy in the first trimester of pregnancy are controversial. The aim of this study was to refine the incidence and outcome of this discrepancy in relation to dating of the pregnancy and other biometric parameters.

Feasibility and reproducibility of an image‐scoring method for quality control of fetal biometry in the second trimester

The need for training programs and certification processes in fetal ultrasound has become obvious. The purpose of this study was to evaluate the feasibility of a score‐based quality control system for fetal biometry in the second trimester.

Revisiting first‐trimester fetal biometry

Although advances in ultrasound have facilitated the diagnosis of fetal abnormalities in the first trimester, fetal biometry at this stage of pregnancy remains underused in prenatal diagnosis. We hypothesized that charts which directly correlate measurements to crown–rump length (CRL) could be more accurate than those based on gestational age (GA) derived from CRL measurement. The aim of this study was to construct CRL‐based biometric charts.

Neurodevelopmental outcome following prenatal diagnosis of an isolated anomaly of the corpus callosum

To assess the ability of prenatal ultrasound and magnetic resonance imaging (MRI) to diagnose isolated anomalies of the corpus callosum (ACC) and to further document the long‐term prognosis following diagnosis.

Travail originalCourbe d’estimation de poids fœtal 2014 par le Collège français d’échographie fœtale (CFEF)Chart for estimation of fetal weight 2014 by the French College of Fetal Sonography (CFEF)

OBJECTIVEnTo establish a reference chart for estimated fetal weight (EFW) using the Hadlock formula based on recent biometric data (2012-2013).nnnMATERIAL AND METHODSnA prospective multicentric longitudinal study was carried out. Biometric parameters as the head circumference (HC), abdominal circumference (AC) and the femur length were measured in multiple areas of France from January 2012xa0until December 2013. EFW was calculated using the predictive formula of Hadlock using three parameters. The accurate gestational age was the main inclusion criteria calculated in weeks of gestation (WG). A polynomial regression approach was used to calculate the mean and standard deviation for every WG adjusted to raw data. Centiles of EFW were calculated from the z score that corresponds to the -1.88, -1.28, 0, +1.28, +1.88xa0respectively for the 3rd, 10th, 50th, 90th, et 97th percentile in order to establish a new chart of EFW.nnnRESULTSnMeasurements were obtained for 33,143xa0fetus between 17xa0et 38xa0WG. Reference charts with the 3rd, 10th, 50th, 90th et 97th percentiles were presented.nnnCONCLUSIONnThe reference Chart 2014xa0is an in utero chart for EFW based on ultrasound measurements data reliable and homogenous from a sample of 33,143xa0fetus of a general population. It offers a tool to use in routine ultrasound examination for the survey of the fetal growth and to diagnose fetus that are small for gestational age or presenting a restriction in growth.

Courbe d’estimation de poids fœtal 2014 par le Collège français d’échographie fœtale (CFEF)

OBJECTIVEnTo establish a reference chart for estimated fetal weight (EFW) using the Hadlock formula based on recent biometric data (2012-2013).nnnMATERIAL AND METHODSnA prospective multicentric longitudinal study was carried out. Biometric parameters as the head circumference (HC), abdominal circumference (AC) and the femur length were measured in multiple areas of France from January 2012xa0until December 2013. EFW was calculated using the predictive formula of Hadlock using three parameters. The accurate gestational age was the main inclusion criteria calculated in weeks of gestation (WG). A polynomial regression approach was used to calculate the mean and standard deviation for every WG adjusted to raw data. Centiles of EFW were calculated from the z score that corresponds to the -1.88, -1.28, 0, +1.28, +1.88xa0respectively for the 3rd, 10th, 50th, 90th, et 97th percentile in order to establish a new chart of EFW.nnnRESULTSnMeasurements were obtained for 33,143xa0fetus between 17xa0et 38xa0WG. Reference charts with the 3rd, 10th, 50th, 90th et 97th percentiles were presented.nnnCONCLUSIONnThe reference Chart 2014xa0is an in utero chart for EFW based on ultrasound measurements data reliable and homogenous from a sample of 33,143xa0fetus of a general population. It offers a tool to use in routine ultrasound examination for the survey of the fetal growth and to diagnose fetus that are small for gestational age or presenting a restriction in growth.

OC11.03: A new echographic marker for 2nd–3rd trimester prenatal diagnosis of trisomy 21: the linear insertion of the atrioventricular valves without defect about 40 740 pregnancies

Results: With grey-scale imaging 20 polyps (49%) were recognized. The subsequent application of power Doppler diagnosed the remaining 21 polyps increasing the overall detection rate to 1 (p < 0.01). The grey-scale detection rate for the polyp was 11/30 (0.37) in the asymptomatic patients and 9/11 (0.82) in the symptomatic patients. No difference in endometrial thickness was observed. With power Doppler imaging, the detection rate for the feeding arteries was 0.97 (29/30) in the asymptomatic polyps and a similar 0.91 (10/11) in the symptomatic polyps. In the 21 polyps, where imaging of the vascularity was the only diagnostic marker, all but two were asymptomatic. Conclusion: Power Doppler enhanced ultrasound detection of the feeding vessels can be a simple, non-invasive and highly effective first line test for the diagnosis of endometrial polyps in asymptomatic patients.

OC12.05: Foetal esophagus scans screening: the distance between trachea and aorta versus the pouch sign?

Results: Thirteen prenatal cases of non-nuchal vascular-lymphatic malformations were identified and all cases were confirmed postnatally. The presence of a vascular-lymphatic malformation was suspected in the first trimester in five fetuses secondary to an enlarged anterior cystic hygroma. In eight cases the first trimester ultrasound appeared normal but the lesion was noted on a second trimester morphology sonogram. Two ultrasounds noted a lymphangioma of the lower extremity with extension into the abdomen. Six fetuses had lymphatic malformations of the chest wall with involvement of the upper limb. In two cases hemangiolymphangioma was located to the face and neck. Additionally, in 3 patients with bilateral pleural effusion pulmonary lymphangiectasia was diagnosed. One of these cases resulted in hydrops fetalis and a neonatal diagnosis of Hennekam’s syndrome. Pregnancy outcomes included two terminations, one intrauterine fetal demise, and ten live births. These ten neonates underwent multiple surgical interventions. Postoperative complications included sepsis, lymphorhea, and airway obstruction. Only four babies were alive at one year after birth. Conclusions: This represents one of the largest series of prenatal diagnosis of non-nuchal vascular-lymphatic malformations. These lesions are most commonly diagnosed later in pregnancy. Rapid growth of the lesion, large size at the time of presentation, and the development of hydrops fetalis are poor prognostic indicators.