scholarly journals Explainability for Regression CNN in Fetal Head Circumference Estimation from Ultrasound Images

2020 ◽  
pp. 73-82
Author(s):  
Jing Zhang ◽  
Caroline Petitjean ◽  
Florian Yger ◽  
Samia Ainouz
Keyword(s):  
Head Circumference ◽  
Ultrasound Images ◽  
Fetal Head

scholarly journals Automated measurement of fetal head circumference using 2D ultrasound images

PLoS ONE ◽  
2018 ◽  
Vol 13 (8) ◽  
pp. e0200412 ◽  
Author(s):  
Thomas L. A. van den Heuvel ◽  
Dagmar de Bruijn ◽  
Chris L. de Korte ◽  
Bram van Ginneken
Keyword(s):  
Head Circumference ◽  
Ultrasound Images ◽  
Automated Measurement ◽  
Fetal Head ◽  
2D Ultrasound

scholarly journals Mask-R$$^{2}$$CNN: a distance-field regression version of Mask-RCNN for fetal-head delineation in ultrasound images

2021 ◽  
Author(s):  
Sara Moccia ◽  
Maria Chiara Fiorentino ◽  
Emanuele Frontoni
Keyword(s):  
Fetal Growth ◽  
A Priori ◽  
Absolute Difference ◽  
Ultrasound Images ◽  
Fetal Head ◽  
Mean Absolute Difference ◽  
Distance Field ◽  
Feature Pyramid ◽  
End To End ◽  
Ablation Study

Abstract Background and objectives Fetal head-circumference (HC) measurement from ultrasound (US) images provides useful hints for assessing fetal growth. Such measurement is performed manually during the actual clinical practice, posing issues relevant to intra- and inter-clinician variability. This work presents a fully automatic, deep-learning-based approach to HC delineation, which we named Mask-R$$^{2}$$ 2 CNN. It advances our previous work in the field and performs HC distance-field regression in an end-to-end fashion, without requiring a priori HC localization nor any postprocessing for outlier removal. Methods Mask-R$$^{2}$$ 2 CNN follows the Mask-RCNN architecture, with a backbone inspired by feature-pyramid networks, a region-proposal network and the ROI align. The Mask-RCNN segmentation head is here modified to regress the HC distance field. Results Mask-R$$^{2}$$ 2 CNN was tested on the HC18 Challenge dataset, which consists of 999 training and 335 testing images. With a comprehensive ablation study, we showed that Mask-R$$^{2}$$ 2 CNN achieved a mean absolute difference of 1.95 mm (standard deviation $$=\pm 1.92$$ = ± 1.92  mm), outperforming other approaches in the literature. Conclusions With this work, we proposed an end-to-end model for HC distance-field regression. With our experimental results, we showed that Mask-R$$^{2}$$ 2 CNN may be an effective support for clinicians for assessing fetal growth.

scholarly journals Pregnancy outcomes in women with preexisting thyroid diseases: a French cohort study

2020 ◽  
pp. 1-10
Author(s):  
Marion Lecorguillé ◽  
Juliane Léger ◽  
Anne Forhan ◽  
Marie Cheminat ◽  
Marie-Noëlle Dufourg ◽  
...  
Keyword(s):  
Thyroid Hormone ◽  
Gestational Diabetes ◽  
Head Circumference ◽  
Thyroid Diseases ◽  
Premature Rupture Of Membranes ◽  
Premature Rupture ◽  
Fetal Head ◽  
History Of ◽  
Multivariable Regression ◽  
Multivariable Regression Models

Abstract Women with thyroid diseases at the beginning of pregnancy may have suboptimal thyroid hormone levels because of potential difficulties in compensating for the physiological thyroid hormone changes occurring in pregnancy. Our objective was to study the association between preexisting thyroid diseases, pregnancy complications, and neonatal anthropometry. In total, 16,395 women from the ELFE French longitudinal birth cohort were included, and 273 declared pre-pregnancy thyroid diseases. Associations were investigated with multivariable regression models, with adjustment for relevant potential confounders. Body mass index (BMI) was additionally adjusted for in a second stage. As compared with other women, women with pre-pregnancy thyroid diseases were more frequently obese (19.6% vs. 9.8%) and had greater odds of gestational diabetes development (odds ratio [OR] = 1.58 [95% confidence interval [CI] 1.08, 2.30]) or had undergone treatment for infertility (OR = 1.57 [95% CI 1.07, 2.31]). After adjustment for BMI, the association with gestational diabetes was no longer significant (OR = 1.27 [95% CI 0.86, 1.88]). After excluding women with another medical history, those with pre-pregnancy thyroid diseases had increased odds of premature rupture of membranes (OR = 1.51 [95% CI 1.01, 2.25]). Children born from mothers with hypothyroidism before conception due to a disease or as a potential side effect of treatment had a smaller head circumference at birth than other children (β = −0.23 [95% CI −0.44, −0.01] cm). In conclusion, pre-pregnancy thyroid diseases were associated with risk of infertility treatment, gestational diabetes, and premature rupture of membranes. The association between history of hypothyroidism and moderate adverse effects on fetal head circumference growth needs replication.

scholarly journals Maternal bisphenol urine concentrations, fetal growth and adverse birth outcomes: A population-based prospective cohort

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Chalana M. Sol ◽  
Charissa van Zwol - Janssens ◽  
Elise M. Philips ◽  
Alexandros G. Asimakopoulos ◽  
Maria-Pilar Martinez-Moral ◽  
...  
Keyword(s):  
Birth Outcomes ◽  
Fetal Growth ◽  
Head Circumference ◽  
Lower Risk ◽  
First Trimester ◽  
Population Based ◽  
Third Trimester ◽  
Bisphenol S ◽  
Fetal Head ◽  
Urine Concentrations

Abstract Background Exposure to bisphenols may affect fetal growth and development. The trimester-specific effects of bisphenols on repeated measures of fetal growth remain unknown. Our objective was to assess the associations of maternal bisphenol urine concentrations with fetal growth measures and birth outcomes and identify potential critical exposure periods. Methods In a population-based prospective cohort study among 1379 pregnant women, we measured maternal bisphenol A, S and F urine concentrations in the first, second and third trimester. Fetal head circumference, length and weight were measured in the second and third trimester by ultrasound and at birth. Results An interquartile range increase in maternal pregnancy-averaged bisphenol S concentrations was associated with larger fetal head circumference (difference 0.18 (95% confidence interval (CI) 0.01 to 0.34) standard deviation scores (SDS), p-value< 0.05) across pregnancy. When focusing on specific critical exposure periods, any detection of first trimester bisphenol S was associated with larger second and third trimester fetal head circumference (difference 0.15 (95% CI 0.05 to 0.26) and 0.12 (95% CI 0.02 to 0.23) SDS, respectively) and fetal weight (difference 0.12 (95% CI 0.02 to 0.22) and 0.16 (95% CI 0.06 to 0.26) SDS, respectively). The other bisphenols were not consistently associated with fetal growth outcomes. Any detection of bisphenol S and bisphenol F in first trimester was also associated with a lower risk of being born small size for gestational age (Odds Ratio 0.56 (95% CI 0.38 to 0.74) and 0.55 (95% CI 0.36 to 0.85), respectively). Bisphenols were not associated with risk of preterm birth. Conclusions Higher maternal bisphenol S urine concentrations, especially in the first trimester, seem to be related with larger fetal head circumference, higher weight and a lower risk of being small size for gestational age at birth.

Prenatal Sonographic Head Circumference and Cerebral Ventricle Width Measurements Before and After Open Fetal Myelomeningocele Repair – Prediction of Shunting During the First Year of Life

2018 ◽  
Vol 41 (05) ◽  
pp. 544-549 ◽  
Author(s):  
Ladina Vonzun ◽  
Franziska Maria Winder ◽  
Martin Meuli ◽  
Ueli Moerlen ◽  
Luca Mazzone ◽  
...  
Keyword(s):  
Head Circumference ◽  
Predictive Accuracy ◽  
False Positive Rate ◽  
Roc Curves ◽  
First Year ◽  
Fetal Head ◽  
Fetal Diagnosis ◽  
Before And After ◽  
Width Measurements ◽  
First Year Of Life

Abstract Purpose The aim of this study was to describe the sonographic evolution of fetal head circumference (HC) and width of the posterior horn of the lateral ventricle (Vp) after open fetal myelomeningocele (fMMC) repair and to assess whether pre- or postoperative measurements are helpful to predict the need for shunting during the first year of life. Patients & Methods All 30 children older than one year by January 2017 who previously had fMMC repair at the Zurich Center for Fetal Diagnosis and Therapy were included. Sonographic evolution of fetal HC and Vp before and after fMMC repair was assessed and compared between the non-shunted (N = 16) and the shunted group (N = 14). ROC curves were generated for the fetal HC Z-score and Vp in order to show their predictive accuracy for the need for shunting until 1 year of age. Results HC was not an independent factor for predicting shunting. However, the need for shunting was directly dependent on the preoperative Vp as well as the Vp before delivery. A Vp > 10 mm at evaluation for fMMC repair or > 15 mm before delivery identifies 100 % of the infants needing shunt placement at a false-positive rate of 44 % and 25 %, respectively. All fetuses with a Vp > 15 mm at first evaluation received a shunt. Conclusion Fetuses demonstrating a Vp of > 15 mm before in utero MMC repair are extremely likely to develop hydrocephalus requiring a shunt during the first year of life. This compelling piece of evidence must be appropriately integrated into prenatal counseling.

scholarly journals Sonographic large fetal head circumference and risk of cesarean delivery

2018 ◽  
Vol 218 (3) ◽  
pp. 339.e1-339.e7 ◽  
Author(s):  
Michal Lipschuetz ◽  
Sarah M. Cohen ◽  
Ariel Israel ◽  
Joel Baron ◽  
Shay Porat ◽  
...  
Keyword(s):  
Cesarean Delivery ◽  
Head Circumference ◽  
Fetal Head

scholarly journals Accuracy of ultrasonic fetal weight estimation using head and abdominal circumference and femur length

2005 ◽  
Vol 58 (11-12) ◽  
pp. 548-552 ◽  
Author(s):  
Ljiljana Mladenovic-Segedi ◽  
Dimitrije Segedi
Keyword(s):  
Birth Weight ◽  
Head Circumference ◽  
Fetal Weight ◽  
Abdominal Circumference ◽  
Weight Estimation ◽  
Fetal Head ◽  
Total Body Mass ◽  
Femur Length ◽  
Fetal Weight Estimation ◽  
Gynecology And Obstetrics

Introduction Former investigations have shown that the accuracy of fetal weight estimation is significantly higher if several ultrasonic fe?tal parameters are measured, because the total body mass depends on the size of fetal head, abdominal circumference and femur length. The aim of this investigation was to establish the best regression model, that is a number of combinations of fetal parameters providing the most accurate fetal weight estimation in utero in our population. Material and methods This prospective study was carried out at the Gynecology and Obstetrics Clinic of the Clinical Center Novi Sad. It included 270 pregnant women with singleton pregnancies within 72 hours of delivery who underwent ultrasound measurements of the biparietal diameter (BPD), head circumference (HC), ab?dominal circumference (AC) and femur length (FL). Results In regard to fetal weight estimation formulas, the deviation was lowest using regression models that simultaneously analyzed four fetal parameters (0.55%) with SD ?7.61%. In these models the estimates of fetal weights were within ?5% of actual birth weight in 48.89%, and within ?10% of actual birth weight in 81.48%. Good results were also obtained using AC, FL measurements (0.92% ? 8.20) as well as using AC, HC, FL measurements (-1.45% ? 7.81). In our sample the combination of AC and FL model gave better results in fetal weight estimation (0.92 ? 8.20%) than the one using BPD and AC (2.97 ? 8.83%). Furthermore, the model using parameters AC, HC and FL showed a lower error in accuracy (-1.45 ? 7.81%) than the model using BPD, AC and FL (2.51 ? 7.82%). Conclusion This investigation has confirmed that the accuracy of fetal weight estimation increases with the number of measured ultra?sonic fetal parameters. In our population the greatest accuracy was obtained using BPD, HC, AC and FL model. In cases when fast estimation of fetal weight is needed, AC, HC, FL model may be appropriate, but if fetal head circumference cannot be measured (amnion rupture and/or fetal head already in the pelvis) the AC, FL model should be used.

scholarly journals Fetal head circumference, operative delivery, and fetal outcomes: a multi-ethnic population-based cohort study

2013 ◽  
Vol 13 (1) ◽  
Author(s):  
Andrew Mujugira ◽  
Alfred Osoti ◽  
Ruth Deya ◽  
Stephen E Hawes ◽  
Amanda I Phipps
Keyword(s):  
Cohort Study ◽  
Head Circumference ◽  
Population Based ◽  
Operative Delivery ◽  
Ethnic Population ◽  
Fetal Head ◽  
Fetal Outcomes
Sign in / Sign up

Export Citation Format

Share Document