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Fetal Biparietal diameter

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1. Fetal Biparietal diameter

Fetal Biparietal diameter Fetal Biparietal diameter Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Fetal Biparietal diameter Fetal (...) Biparietal diameter Aka: Fetal Biparietal diameter II. Landmarks Thalamic nuclei Cavum septi pellucidi III. Technique Oval shape Leading edge to leading edge IV. Images V. Hints Avoid too much abdominal pressure Look for Symmetric Look for X VI. Accuracy At 20 weeks gestation: accuracy within 1 week Images: Related links to external sites (from Bing) These images are a random sampling from a Bing search on the term "Fetal Biparietal diameter." Click on the image (or right click) to open the source

2018 FP Notebook

2. Screening for hemoglobin Bart's disease among fetuses at risk at mid-pregnancy using the fetal cardiac diameter to biparietal diameter ratio. (PubMed)

Screening for hemoglobin Bart's disease among fetuses at risk at mid-pregnancy using the fetal cardiac diameter to biparietal diameter ratio. All sonomarkers used to screen for fetal hemoglobin (Hb) Bart's disease need high expertise, preventing them from being widely used. Fetal cardiac diameter to biparietal diameter (C/B) ratio is a simple marker which has never been evaluated for its effectiveness. Therefore, we conducted this study to evaluate the effectiveness of C/B ratio in predicting (...) fetal Hb Bart's disease among fetuses at risk.Fetuses at risk of Hb Bart's disease scheduled for diagnostic cordocentesis at 18 to 22 weeks of pregnancy were prospectively enrolled. All underwent ultrasound for fetal biometry and cardio-STIC acquisition for subsequent off-line analysis. Cardio-STIC volume datasets (VDS) were analyzed for cardiac diameter measurement and C/B ratio was calculated by the authors who did not know the fetal diagnosis. Final diagnosis of Hb Bart's disease was based

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2014 BMC Pregnancy and Childbirth

3. Combined screening for open spina bifida at 11-13 weeks using fetal biparietal diameter and maternal serum markers. (PubMed)

Combined screening for open spina bifida at 11-13 weeks using fetal biparietal diameter and maternal serum markers. Screening at 11-13 weeks with ultrasound biparietal diameter (BPD) can detect half of open spina bifida cases. Maternal serum α-fetoprotein (AFP) levels at 15-19 weeks are increased 3- to 4-fold, in open spina bifida. We assessed whether combined screening using BPD, AFP, and other serum markers at 11-13 weeks would increase detection.Maternal AFP levels were measured on serum

2013 American Journal of Obstetrics and Gynecology

4. Screening for fetal spina bifida by ultrasound examination in the first trimester of pregnancy using fetal biparietal diameter. (PubMed)

Screening for fetal spina bifida by ultrasound examination in the first trimester of pregnancy using fetal biparietal diameter. Prenatal screening for aneuploidies is best achieved in the first trimester when there is no reliable screening test for spina bifida. Early ultrasound features may be too complex for routine screening. We assessed screening potential of simple and reproducible fetal biometric measurements at 11-14 weeks of gestation.A total of 34,951 unselected consecutive pregnancies (...) included 18 with spina bifida. Another 28 cases were referred for assessment. Biometric measurements were expressed in multiples of the median for crown-rump length.Biparietal diameter (BPD) was smaller in spina bifida (P < .0001). In all, 22 of 44 (50%) cases with spina bifida aperta had a BPD <5th centile. BPD was independent of maternal adiposity and smoking status.Simple and reproducible BPD at 11-14 weeks of gestation could detect half the cases of open fetal spina bifida by identifying 5

2012 American Journal of Obstetrics and Gynecology

5. Fetal Biparietal diameter

Fetal Biparietal diameter Fetal Biparietal diameter Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Fetal Biparietal diameter Fetal (...) Biparietal diameter Aka: Fetal Biparietal diameter II. Landmarks Thalamic nuclei Cavum septi pellucidi III. Technique Oval shape Leading edge to leading edge IV. Images V. Hints Avoid too much abdominal pressure Look for Symmetric Look for X VI. Accuracy At 20 weeks gestation: accuracy within 1 week Images: Related links to external sites (from Bing) These images are a random sampling from a Bing search on the term "Fetal Biparietal diameter." Click on the image (or right click) to open the source

2015 FP Notebook

6. First trimester screening for holoprosencephaly with choroid plexus morphology ('butterfly' sign) and biparietal diameter. (PubMed)

First trimester screening for holoprosencephaly with choroid plexus morphology ('butterfly' sign) and biparietal diameter. The aim of this study was to determine whether choroid plexus morphology ('butterfly' sign) and biparietal diameter (BPD) are effective sonographic screening tools for holoprosencephaly (HPE) in the first trimester.An axial view of the fetal head was obtained routinely to determine the presence of the 'butterfly' sign in pregnancies presenting for sonographic screening

2013 Prenatal diagnosis

7. Biparietal diameter at 11-13 weeks' gestation in fetuses with open spina bifida. (PubMed)

Biparietal diameter at 11-13 weeks' gestation in fetuses with open spina bifida. To ascertain the reported association between reduced biparietal diameter (BPD) at 11-13 weeks' gestation and open spina bifida and to investigate its predictive value in a single-center study.This was a retrospective study of fetuses in which BPD was measured at 11-13 weeks' gestation, including 27 fetuses with isolated open spina bifida subsequently diagnosed at 16-24 weeks and 7775 unaffected controls. BPD (...) of 11.6%. In fetuses with open spina bifida, the BPD Z-scores were significantly lower at 16-24 weeks compared to those recorded at 11-13 weeks (median, -1.71 (range, -3.98 to -0.20) vs -1.30 (-3.75 to 2.61); P = 0.006).Fetuses with open spina bifida have a smaller BPD in the first trimester. This observation may be useful in early screening. It is likely that a combination of maternal characteristics such as age and BMI, fetal BPD and maternal serum alpha-fetoprotein measured in the first trimester

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2013 Ultrasound in Obstetrics and Gynecology

8. Third Trimester Fetal Well-Being Studies: Criteria and Managing Results

if it was unfavourable. Fetal Biometry and Estimated Fetal Weight (EFW) ? Routinely measure: o Biparietal diameter (BPD) o Head circumference (HC) o Abdominal circumference (AC) o Femur length (FL) ? Take at least two measurements of each view and report the best or mean measurement. ? Outliers should trigger the need for a repeat measurement prior to reporting. ? Routinely report the Estimated Fetal Weight (EFW) using Hadlock’s 1 formula (for weight in grams) followed by the Alberta Health gender specific growth (...) Third Trimester Fetal Well-Being Studies: Criteria and Managing Results THIRD TRIMESTER FETAL WELL-BEING STUDIES: CRITERIA AND MANAGING RESULTS Clinical Practice Guideline | June 2017 These recommendations are systematically developed statements to assist practitioner and patient decisions about appropriate health care for specific clinical circumstances. They should be used as an adjunct to sound clinical decision making. OBJECTIVE Alberta obstetric providers will: ? Understand common risk

2017 Toward Optimized Practice

9. Fetal Growth Velocity: the NICHD Fetal Growth Studies. (PubMed)

. Ultrasound biometric measurements included biparietal diameter, head circumference, abdominal circumference, and femur length, and estimated fetal weight was calculated. We used linear mixed models with cubic splines for the fixed effects and random effects to flexibly model ultrasound trajectories. We computed velocity percentiles in 2 ways: (1) difference between 2 consecutive weekly measurements (ie, weekly velocity), and (2) difference between any 2 ultrasounds at a clinically reasonable difference (...) by whether or not estimated fetal weight and estimated fetal weight velocity were <5th or ≥5th percentiles using χ2.Fetal growth velocity was nonmonotonic, with acceleration early in pregnancy, peaking at 13, 14, 15, and 16 weeks for biparietal diameter, head circumference, femur length, and abdominal circumference, respectively. Biparietal diameter, head circumference, and abdominal circumference had a second acceleration at 19-22, 19-21, and 27-31 weeks, respectively. Estimated fetal weight velocity

2018 American Journal of Obstetrics and Gynecology

10. Second trimester biparietal diameter size and the risk of adverse pregnancy outcomes. (PubMed)

Second trimester biparietal diameter size and the risk of adverse pregnancy outcomes. To identify the relationship between biparietal diameter (BPD) in the second trimester and adverse pregnancy outcomes in low-risk pregnancies.This prospective cohort study was performed on 2219 singleton pregnant women from August 2008 to March 2010. The gestational age-specific percentiles of BPD at 17 to 24 weeks of gestation were established to categorize participants into three groups: a BPD < 10th (...) compared with fetuses with a normal BPD, and there was a significant relationship between small for gestational age (SGA) at delivery and a BPD < 10th percentile at the second trimester (OR(adj) = 2.4; 95% CI, 1.77-3.52). No association was present between preeclampsia and second trimester BPD.BPD in the first half of pregnancy is related to fetal size at term and risk of PTL.Copyright © 2011 John Wiley & Sons, Ltd.

2011 Prenatal diagnosis

11. The World Health Organization Fetal Growth Charts: A Multinational Longitudinal Study of Ultrasound Biometric Measurements and Estimated Fetal Weight. (PubMed)

, even after adjusting for gestational age. Thirty-one women had a miscarriage, and three fetuses had intrauterine death. The 8,203 sets of ultrasound measurements were scrutinized for outliers and leverage points, and those measurements taken at 14 to 40 wk were selected for analysis. A total of 7,924 sets of ultrasound measurements were analyzed by quantile regression to establish longitudinal reference intervals for fetal head circumference, biparietal diameter, humerus length, abdominal (...) circumference, femur length and its ratio with head circumference and with biparietal diameter, and EFW. There was asymmetric distribution of growth of EFW: a slightly wider distribution among the lower percentiles during early weeks shifted to a notably expanded distribution of the higher percentiles in late pregnancy. Male fetuses were larger than female fetuses as measured by EFW, but the disparity was smaller in the lower quantiles of the distribution (3.5%) and larger in the upper quantiles (4.5

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2017 PLoS medicine

12. Association of Maternal Obesity With Longitudinal Ultrasonographic Measures of Fetal Growth: Findings From the NICHD Fetal Growth Studies-Singletons. (PubMed)

-dimensional ultrasonograms to capture weekly fetal growth data throughout the remainder of their pregnancies.On each ultrasonogram, fetal humerus length, femur length, biparietal diameter, head circumference, and abdominal circumference were measured. Fetal growth curves were estimated using linear mixed models with cubic splines. Median differences in the fetal measures at each gestational week of the obese and nonobese participants were examined using the likelihood ratio and Wald tests after adjustment (...) Association of Maternal Obesity With Longitudinal Ultrasonographic Measures of Fetal Growth: Findings From the NICHD Fetal Growth Studies-Singletons. Despite the increasing prevalence of pregravid obesity, systematic evaluation of the association of maternal obesity with fetal growth trajectories is lacking.To characterize differences in fetal growth trajectories between obese and nonobese pregnant women, and to identify the timing of any observed differences.The Eunice Kennedy Shriver National

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2017 JAMA pediatrics

13. Fractional Fetal Thigh Volume in the prediction of normal and abnormal fetal growth during the third trimester of pregnancy. (PubMed)

<3rd customized birthweight centile. Logistic regression was used to compare estimated fetal weight (Hadlock), estimated fetal weight (biparietal diameter-abdominal circumference-fractional thigh volume), fractional thigh volume, and abdominal circumference for the prediction of small for gestational age or fetal growth restriction at birth. Screening performance was assessed using area under the receiver operating characteristic curve.There was a better correlation between fractional thigh volume (...) and estimated fetal weight ((biparietal diameter-abdominal circumference-fractional thigh volume) obtained at 34-36 weeks with birthweight than between 2-dimensional biometry measures such as abdominal circumference and estimated fetal weight (Hadlock). There was also a modest improvement in the detection of both small for gestational age and fetal growth restriction using fractional thigh volume-derived measures compared to standard 2-dimensional measurements (area under receiver operating characteristic

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2017 American Journal of Obstetrics and Gynecology

14. First Trimester Alcohol Exposure Alters Placental Perfusion and Fetal Oxygen Availability Affecting Fetal Growth and Development in a Non-human Primate Model. (PubMed)

and placental volume blood flow. After noninvasive imaging, animals underwent cesarean delivery for placenta collection and fetal necropsy at gestational day 110 (n=6) or 135 (n=6).Fetal weight and biparietal diameter were significantly smaller in ethanol-exposed animals compared with control animals at gestational day 110. By Doppler ultrasound scanning, placental volume blood flow was significantly lower (P=.04) at gestational day 110 in ethanol-exposed vs control animals. A significant reduction (...) First Trimester Alcohol Exposure Alters Placental Perfusion and Fetal Oxygen Availability Affecting Fetal Growth and Development in a Non-human Primate Model. Prenatal alcohol exposure leads to impaired fetal growth, brain development, and stillbirth. Placental impairment likely contributes to these adverse outcomes, but the mechanisms and specific vasoactive effects of alcohol that links altered placental function to impaired fetal development remain areas of active research.Recently, we

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2017 American Journal of Obstetrics and Gynecology

15. A revisit of the fetal foot length and fetal measurements in early pregnancy sonography (PubMed)

A revisit of the fetal foot length and fetal measurements in early pregnancy sonography To present the fetal measurements in relation to the foot length at 10-16 weeks gestation on antenatal ultrasound.We reviewed the fetal measurements in 47 scans performed at 10-16 weeks gestation in women attending routine antenatal care. The fetal measurements and measurement ratios were examined in relation to the foot length.The fetal biparietal diameter, head circumference, abdominal circumference, femur (...) length and foot length increase linearly with the gestational age at 10-16 weeks gestation. The correlation between fetal foot length and fetal biparietal diameter, head circumference, abdominal circumference and femur length are better than with the crown rump length. The femur length to foot length ratio and the femur length to abdominal circumference ratios increase with the gestational age in an inverse relationship throughout the same period.Fetal foot length is an accurate estimate

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2017 International journal of women's health

16. Prediction of small-for-gestational age by fetal growth rate according to gestational age. (PubMed)

the ultrasonographic parameters that contribute substantially to the birthweight determination.This was a retrospective study of 442 healthy pregnant women with singleton pregnancies. There were 328 adequate-for-gestational age (AGA) neonates and 114 SGA infants delivered between 37+0 and 41+6 weeks of gestation. We compared the biparietal diameters (BPD), head circumferences (HC), abdominal circumferences (AC), femur lengths (FL), and estimated fetal weights (EFW) obtained on each ultrasound to determine which (...) Prediction of small-for-gestational age by fetal growth rate according to gestational age. Small-for-gestational age (SGA) infants should be identified before birth because of an increased risk of adverse perinatal outcomes. The objective of this study was to assess the impact of fetal growth rate by gestational age on the prediction of SGA and to identify the optimal time to initiate intensive fetal monitoring to detect SGA in low-risk women. We also sought to determine which

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2019 PLoS ONE

17. Comparison of coronary sinus diameter Z-scores in normal fetuses and fetuses with persistent left superior vena cava (PLSVC) (PubMed)

Comparison of coronary sinus diameter Z-scores in normal fetuses and fetuses with persistent left superior vena cava (PLSVC) To establish Z-score reference ranges for coronary sinus (CS) diameter in normal fetuses and explore the diagnostic value of CS Z-score in fetuses with persistent left superior vena cava (PLSVC). Study of 235 normal fetuses and 30 fetuses with PLSVC was involved. Noncardiac biometrical parameters included biparietal diameter (BPD), femoral length (FL), heart area (HA (...) ), gestation age (GA). The coronary sinus systolic and diastolic diameter (CSDs and CSDd ) were measured at the end of systole and diastole. CSDs and CSDd Z-score models were constructed by using linear regression analysis with Non-cardiac biometrical parameters as independent variables. Z-scores between normal fetuses and fetuses with PLSVC were compared. A simple, linear regression model was the best description and correlations between fetal CSDs and CSDd and four independent variables were excellent

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2017 The international journal of cardiovascular imaging

18. Reduced fetal growth velocities and the association with neonatal outcomes in appropriate-for-gestational-age neonates: a retrospective cohort study. (PubMed)

), biparietal diameter (BPD), head circumference (HC) and femur length (FL) were compared between the suboptimal AGA (sAGA) (birth weight centiles 10-50) and optimal AGA (oAGA) (birth weight centiles 50-80) group. We assessed the association between velocities and neonatal outcomes.We included 934 singleton pregnancies. In the suboptimal AGA group, fetal growth velocities were lower (in mm/week): AC 10.72 ± 1.00 vs 11.23 ± 1.00 (p < .001), HC 10.50 ± 0.80 vs 10.68 ± 0.77 (p = 0.001), BPD 3.01 ± 0.28 vs 3.08 (...) Reduced fetal growth velocities and the association with neonatal outcomes in appropriate-for-gestational-age neonates: a retrospective cohort study. Fetal growth restriction is, despite advances in neonatal care and uptake of antenatal ultrasound scanning, still a major cause of perinatal morbidity. Neonates with birth weight > 10th percentile are assumed to be appropriate-for-gestational-age (AGA), although many are at increased risk of perinatal morbidity, because of undetected mild

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2019 BMC Pregnancy and Childbirth

19. Fetal Heart Defects and Measures of Cerebral Size. (PubMed)

calculated for first trimester biparietal diameter, second trimester head circumference, fetal weight, birthweight, head circumference, and placental weight.We obtained data from 63 349 pregnancies and identified 295 fetuses with isolated CHDs (major n = 145; minor n = 150). The first trimester mean biparietal diameter Z-scores were not different between those with and those without CHDs. The head circumference mean Z-score difference was -0.13 (95% CI, -0.24 to -0.01; P = .03) in the second trimester (...) Fetal Heart Defects and Measures of Cerebral Size. To estimate the association between fetal congenital heart defects (CHDs) and measures of brain size throughout pregnancy, from the end of the first trimester to birth.The cohort consisted of all fetuses scanned in Western Denmark in 2012 and 2013. Anthropometric measures in fetuses with isolated CHDs diagnosed within 12 months after birth were compared with those in the fetuses without CHDs. Z-scores standardized to gestational age were

2019 Journal of Pediatrics

20. Association of first trimester maternal vitamin D, ferritin and hemoglobin level with third trimester fetal biometry: result from cohort study on vitamin D status and its impact during pregnancy and childhood in Indonesia. (PubMed)

and 43 women (21%) were in insufficient state. Women with insufficient vitamin D had the highest proportion of anemia, while women with normal vitamin D level had the highest proportion of low ferritin level. Maternal serum vitamin D showed significant associations with biparietal diameter (β = 0.141, p = 0.042) and abdominal circumference (β = 0.819, p = 0.001) after adjustment with maternal age, pre-pregnancy body mass index, parity, serum ferritin level, and hemoglobin level.Our study suggested (...) Association of first trimester maternal vitamin D, ferritin and hemoglobin level with third trimester fetal biometry: result from cohort study on vitamin D status and its impact during pregnancy and childhood in Indonesia. The role of vitamin D in placental functions and fetal growth had been addressed in many reports with conflicting results. However, such report is limited for Indonesian population. The aim of this study was to explore the association between maternal vitamin D level

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2019 BMC Pregnancy and Childbirth

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