Gestational age determination by ultrasonic placental thickness measurement

Menon, Maya; Vinodha, M

doi:10.5958/2394-2754.2016.00062.x

Cited by 5 publications

(4 citation statements)

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“…The correlation coefficient between PT and GA was found to be 0.98, and the increase in thickness was 14.6 mm at 11 weeks to 38.9 mm at 40 weeks as per a study. [ 6 ] In the present study, also similar significant positive correlation was found between PT and all the other fetal biometry parameters. Thickness increased from 10 mm at 11 weeks to 38.2 mm at 40 weeks with a correlation coefficient of 0.96 bearing striking similarities with the mentioned study.…”

Section: Discussionsupporting

confidence: 89%

Placental Thickness Measurement by Ultrasonography and Its Correlation with Gestational Age of Fetus in the Manipuri Population

Banik¹,

Rajkumari²,

Devi³

et al. 2022

International Journal of Applied &Amp; Basic Medical Research

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: Purpose: The study was done to measure the placental thickness (PT) in pregnant women and find its correlation with the gestational age (GA) of the fetus by ultrasonography. Comparisons were also made with the other fetal biometry parameters, and baseline data were generated with respect to the gestational weeks and placental position. Materials and Methods: The study was a cross-sectional one with a sample size of 134 singleton pregnancies. About 11–40 weeks of gestation were studied for the measurement of PT and other fetal parameters. Informed consent was obtained before recording the data on the preformed questionnaire. All measurements were done in mm and during the relaxed phase of the uterus. Results: As per the study, PT (in mm) increases with an increase in GA (in weeks) and almost matches it from 12 to 34 weeks of gestation. PT had a strong correlation with GA ( r = 0.966). The correlation was statistically significant, with a P < 0.001. Conclusion: Thus, the estimation of the thickness of the placenta at the cord insertion site by means of ultrasonography is a relatively simple, safe, and cheap modality for accurate estimation of GA, fetal growth, and placental abnormalities and thus can significantly affect the management and outcome of pregnancy.

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Section: Discussionsupporting

confidence: 89%

Placental Thickness Measurement by Ultrasonography and Its Correlation with Gestational Age of Fetus in the Manipuri Population

Banik¹,

Rajkumari²,

Devi³

et al. 2022

International Journal of Applied &Amp; Basic Medical Research

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“…They further developed a linear equation between the two parameters. Maya Menon et al [10] also observed positive correlation between both parameters. Correlation coefficient was r=0.93 and p value was <0.0001.…”

Section: Discussionmentioning

confidence: 83%

Placental Thickness – an alternative to biparietal diameter for assessment of gestational age in cases of unknown last menstrual period: a cross-sectional observational study

Singhal¹,

Mehta²,

Chauhan³

et al. 2024

Ital J Gynaecol Obstet

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Objective. The objective of this study was to evaluate the relationship of placental thickness with biparietal diameter (BPD) which can be used for assessment of gestational age in women with unknown last menstrual period.Materials and Methods. This was a cross-sectional observational study conducted at antenatal outpatient department of a tertiary center hospital among second and third trimester pregnant women of age 18-35 years with singleton live fetus. All women were subjected to ultrasonography for measurement of placental thickness (measured at the level of umbilical cord insertion) and BPD of fetus.Results. 200 pregnant women were recruited (Mean age -24.5 years). Both biparietal diameter and placental thickness increases with gestational age. Mean placental thickness show strong positive correlation with BPD (r=0.930 and p-value <0.0001). Further, subgroup analysis showed BPD and placental thickness to have significant correlation at all gestational age groups with significantly strong positive correlation from 13-33 week of gestation.Conclusions. Placental thickness is positively correlated with BPD and can be used as a marker for gestational age in pregnant women.

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“…Our findings also agree with the study by Durnwald et al , in which placentas located in the fundus were the thickest and those located at the anterior wall were the thinnest [ 29 ]. In the study of Menon et al the association between placental location and PTh was found to be not significant [ 30 ].…”

Section: Discussionmentioning

confidence: 99%

Placental thickness in the 2D prenatal ultrasonographic examination

et al. 2021

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IntroductionThe placental thickness (PTh) is an ultrasonographic measurement commonly used to assess the placenta. The study aimed to determine selected factors influencing PTh in 2D prenatal ultrasonographic examination. It might have a special value in difficult cases for interpretation when PTh is above or below the reference values.Material and methodsIn this retrospective study, we analysed the results of foetal ECHO examination of 2833 foetuses performed between June 2016 and December 2019 in our single unit. 596 healthy foetuses older than 12 weeks of gestation from singleton pregnancies were enrolled in the study. The following parameters were used in the further analysis: placental implantation site, gestational age according to the last menstrual period (LMP) and foetal biometry (FB); maternal weight, height, and body mass index (BMI) at the time of examination; and PTh.ResultsPTh was affected by its location: posterior 33 mm vs. anterior 30 mm (p < 0.001). Moreover, its thickness significantly correlated with gestational age according to FB (r = 0.386, p < 0.001), LMP (r = 0.369, p < 0.001), maternal weight (r = 0.192, p < 0.001), height (r = 0.125, p = 0.002), and BMI (r = 0.147, p < 0.001), but not with maternal age (r = 0.050, p = 0.219). A linear regression model based on these data explained the 16.38% variability of the tested subjects (p < 0.001).ConclusionsOur observations suggest that maternal weight correlated more strongly with PTh than maternal BMI. For PTh evaluation, it is important to pay attention to the placental implantation site – the posterior placenta was thicker than the anterior placenta. Moreover, PTh variability remains largely unknown; therefore, further research in this field is needed.

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Gestational age determination by ultrasonic placental thickness measurement

Cited by 5 publications

References 0 publications

Placental Thickness Measurement by Ultrasonography and Its Correlation with Gestational Age of Fetus in the Manipuri Population

Placental Thickness Measurement by Ultrasonography and Its Correlation with Gestational Age of Fetus in the Manipuri Population

Placental Thickness – an alternative to biparietal diameter for assessment of gestational age in cases of unknown last menstrual period: a cross-sectional observational study

Placental thickness in the 2D prenatal ultrasonographic examination

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