Ultrasound assessment of fetal biparietal diameter and femur length during normal pregnancy in Iranian women

2000 ◽  
Vol 69 (3) ◽  
pp. 237-242 ◽  
Author(s):  
A. Beigi ◽  
F. ZarrinKoub
Keyword(s):  
Normal Pregnancy ◽  
Iranian Women ◽  
Femur Length ◽  
Biparietal Diameter ◽  
Ultrasound Assessment

Antenatal diagnosis of achondroplasia

2013 ◽  
Vol 13 (1) ◽  
pp. 84-87 ◽  
Author(s):  
K Dhungel ◽  
MK Gupta ◽  
K Ahmad ◽  
S Ansari ◽  
RK Rauniyar
Keyword(s):  
Antenatal Diagnosis ◽  
Medical Science ◽  
Interesting Case ◽  
Skeletal Survey ◽  
Term Pregnancy ◽  
Femur Length ◽  
Biparietal Diameter ◽  
Ultrasound Assessment

We report a interesting case of antenatal diagnosis of achondrpoplasia in a young multigravida who presented with term pregnancy for routine ultrasound assessment which revealed a single, live intrauterine fetus with a discrepancy between femur length (FL) and biparietal diameter (BPD), narrowing of the interpeduncular distance. The diagnosis of achondroplasia was made with a sonological skeletal survey and findings were correlated with radiological skeletal survey after the baby was delivered. DOI: http://dx.doi.org/10.3329/bjms.v13i1.17443 Bangladesh Journal of Medical Science Vol. 13 No. 01 January2014: 84-87

scholarly journals Transcerebellar diameter: an effective tool in predicting gestational age in normal and IUGR pregnancy

2018 ◽  
Vol 7 (10) ◽  
pp. 4190
Author(s):  
Sunita Dashottar ◽  
Krishna Pratap Singh Senger ◽  
Yashashvi Shukla ◽  
Ankita Singh ◽  
Surabhi Sharma
Keyword(s):  
Gestational Age ◽  
Tertiary Care ◽  
Surrogate Marker ◽  
Normal Pregnancy ◽  
Abdominal Circumference ◽  
Femur Length ◽  
Growth Status ◽  
Biparietal Diameter ◽  
Number Of Patients ◽  
Common Term

Background: Gestational age is the common term used during pregnancy to describe how far advanced is the pregnancy. In the second and third trimesters, estimation of gestational age is accomplished by measuring the biparietal diameter, head circumference, abdominal circumference, and femur length. The transverse cerebellar diameter (TCD) may serve as a reliable predictor of gestational age (GA) of the fetus and a standard against which aberrations in other fetal parameters can be compared.Methods: The study was conducted in the tertiary care teaching hospital from July 2016 to March 2017. 200 pregnant women of gestational age 15-40 weeks of pregnancy referred from Dept of Obs and Gynae for antenatal scan comprised our study sample.Results: Age of women ranged from 18 to 43 years with maximum number of patients aged 26-30 years. Maximum cases with clinical suspicion for IUGR were in gestational age >36-40 weeks (50%). Evaluation of difference in actual and estimated gestational age between normal and actual gestational age showed that for normal pregnancy as well as in IUGR pregnancies mean difference between estimated and actual gestational age was minimum in TCD followed by other established parameters.Conclusions: TCD being a stable parameter irrespective of growth status of fetus, provides a basis for its usefulness as a ratio to predict IUGR and other perainatal outcomes as used in several studies. Thus, despite not being a direct marker for IUGR it can serve as a surrogate marker for detection of IUGR and another adverse perinatal outcome.

scholarly journals Accuracy of transverse cerebellar diameter measurement by ultrasonography in the evaluation of foetal age

2017 ◽  
Vol 4 (3) ◽  
pp. 836
Author(s):  
Ravindernath M. L. ◽  
Mahender Reddy ◽  
Nihar Reddy
Keyword(s):  
Gestational Age ◽  
Normal Pregnancy ◽  
Abdominal Circumference ◽  
P Value ◽  
Femur Length ◽  
Intrauterine Growth ◽  
Biparietal Diameter ◽  
Significant Difference ◽  
Obstetric Management ◽  
Better Than

Background: Assessment of accurate gestational age of fetus is very imperative for proper obstetric management of normal as well as IUGR pregnancies. The objective of this study was to evaluate the accuracy of transverse cerebellar diameter as against the conventional parameters of Biparietal diameter, head circumference, abdominal circumference and femur length in normal pregnant mothers between 15 to 40 weeks and in antenatal diagnosis of intrauterine growth retardation.Methods: Study done on 100 women attending antenatal department, 80 were normal pregnancy cases and 20 were clinically suspected IUGR cases. In each patient BPD, HC, AC, FL and TCD was measured. Correlation of TCD was done with other measured parameters as well as with estimated gestational age of fetus.Results: There was no statistically significant difference between the age and parity distributions of two groups It was seen that 18 cases were below the fifth percentile for AC and HC, 19 cases were below the fifth percentile for BPD and 16 cases were below the fifth percentile for FL. In 16 out of 20 cases the TCD values were within the normal range. Only in 4 cases the TCD values were below the 5th percentile. This difference in number of cases below the 5th percentile for BPD, HC, AC, FL and TCD was statistically significant (p-value=0.001). In 20 IUGR cases the gestational age predicted by transverse cerebellar diameter measurements closely correlated with gestational age predicted by last menstrual period.Conclusions: It was found that there is good correlation between TCD and other parameters. Also, TCD shows good correlation with gestational age. It is better than BPD in circumstances like excessive moulding and dolichocephaly. Also, TCD measurement is not fraught with problems as encountered in FL measurement.

scholarly journals Placental thickness: an important parameter in determining gestational age and fetal growth during ANC scan

2018 ◽  
Vol 7 (11) ◽  
pp. 4619
Author(s):  
Dipali Kadam ◽  
Saurabh Patil ◽  
Meenal Jain
Keyword(s):  
Gestational Age ◽  
Abdominal Circumference ◽  
P Value ◽  
Third Trimester ◽  
Cross Sectional ◽  
Femur Length ◽  
Biparietal Diameter ◽  
Antenatal Sonography ◽  
Umbilical Cord Insertion ◽  
Placental Thickness

Background: Gestational Age (GA) is one of the most imperative parameters required for proper management in pregnancy. Routinely GA is estimated by sonography utilising Biparietal Diameter (BPD), Femur Length (FL), Abdominal Circumference (AC) and Head Circumference (HC). In any case, these parameters have some limitations. Hence, there is need to find other parameters that may complement the established fetal biometric parameters in predicting GA. The objective of the present study was to assess placental thickness in second and third trimester pregnancies and its relationship with fetal gestational age and its role in detecting LBW and IUGRMethods: A cross sectional prospective study was carried out in three hundred pregnant women between 13 to 40 weeks of gestation, who came for routine antenatal sonography. Placental thickness was measured along with routine parameters. Placental thickness was measured at the level of umbilical cord insertion by two-dimensional ultrasonography.Results: Correlation between the GA by LMP and Placental thickness by ultrasound was done by using Karl Pearson's Correlation(r). The values were expressed as mean + standard deviation. Correlation between placental thickness and gestational age was statistically significant as p value is <0.01. Placental thickness measured in millimetres increases with gestational age in second and third trimester.Conclusions: The correlation between the placental thickness and gestational age was linear and direct. Therefore, Placental thickness is used as a predictor for estimation of gestational age of the fetus in cases where LMP is not known and in detecting developing IUGR and low birth weight.

scholarly journals Correlation models for monitoring fetal growth

2020 ◽  
Vol 29 (10) ◽  
pp. 2795-2813 ◽  
Author(s):  
Yuan Feng ◽  
Luo Xiao ◽  
Cai Li ◽  
Stephanie T Chen ◽  
Eric O Ohuma
Keyword(s):  
Fetal Growth ◽  
Abdominal Circumference ◽  
Fetal Head ◽  
Femur Length ◽  
Second Stage ◽  
Correlation Models ◽  
Biparietal Diameter ◽  
Z Scores ◽  
Using Data ◽  
Shiny Application

Ultrasound growth measurements are monitored to evaluate if a fetus is growing normally compared with a defined standard chart at a specified gestational age. Using data from the Fetal Growth Longitudinal Study of the INTERGROWTH-21st project, we have modelled the longitudinal dependence of fetal head circumference, biparietal diameter, occipito-frontal diameter, abdominal circumference, and femur length using a two-stage approach. The first stage involved finding a suitable transformation of the raw fetal measurements (as the marginal distributions of ultrasound measurements were non-normal) to standardized deviations (Z-scores). In the second stage, a correlation model for a Gaussian process is fitted, yielding a correlation for any pair of observations made between 14 and 40 weeks. The correlation structure of the fetal Z-score can be used to assess whether the growth, for example, between successive measurements is satisfactory. The paper is accompanied by a Shiny application, see https://lxiao5.shinyapps.io/shinycalculator/ .

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