Second trimester placental thickness: its’ correlation with gestational age, femur length and biparietal diameter

Ganjoo, Sandesh; Devgan, Shalini; Dev, Ghanshyam

doi:10.18203/2320-1770.ijrcog20183461

Cited by 4 publications

(3 citation statements)

References 8 publications

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“…Anteriorly located placenta is usually thinner than posterior placenta by about 0.7cm. 17 Use of fetal parameters though helpful will need PT and PD to enhance accuracy of gestational age. Thurston 18 and Anna 19 variously reported that placental thickness indeed parallels gestational age and that it has a very high correlation with GA. 18 We also noted a strong correlation and linear increase of PT and PD with GA. Khanal 20 and colleagues were hopeful that placental thickness would be used to estimate gestational age.…”

Section: Discussionmentioning

confidence: 99%

Correlation of ultrasound placental diameter & thickness with gestational age

Njeze

Ogbochukwu²,

Chinawa

2020

Pak J Med Sci

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Background & Objectives: Estimation of fetal maturity is common in obstetric practice especially when the women do not keep accurate menstrual records. An accurate establishment of expected date of delivery is fundamental to the management of both high risk and normal pregnancies. The objective of this study was to determine the placental diameter (PD), placental thickness (PT) and to establish a correlation between PD, PT and gestational age. Methods: This is an observational cross-sectional study that examines by means of ultrasonography the correlation between placental diameter and thickness with gestational age in Enugu, South East, Nigeria. Results: A total of 400 healthy subjects were recruited in 3rd trimester of pregnancy having fulfilled the inclusion criteria. PD and PT in this study did not correlate with parity. There is a linear increase of gestational age and placental thickness and diameter. These increases heighten between 38th week gestation and 40 weeks’ gestation. 205.0±1.4, 43.00±0.0 to 215.0±1.4, 46.00±2.8 respectively. Conclusion: Placental thickness and Placental diameter can be used to predict gestational age. It is therefore advised to use PT & PD in ultrasound obstetric assessment especially when Last menstrual period (LMP) is not clear. doi: https://doi.org/10.12669/pjms.36.5.1938 How to cite this:Njeze NR, Ogbochukwu JO, Chinawa JM. Correlation of ultrasound placental diameter & thickness with gestational age. Pak J Med Sci. 2020;36(5):---------. doi: https://doi.org/10.12669/pjms.36.5.1938 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Section: Discussionmentioning

confidence: 99%

Correlation of ultrasound placental diameter & thickness with gestational age

Njeze

Ogbochukwu²,

Chinawa

2020

Pak J Med Sci

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“…Few studies have tried to quantify the relationship between the two parameters. A study done by Sandesh Ganjoo et al [9] on relation between placental thickness and BPD showed linear correlation for 14-24 week of gestation. They further developed a linear equation between the two parameters.…”

Section: Discussionmentioning

confidence: 93%

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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“…Studies have shown that a decrease in placental size precedes fetal growth restriction. (10,11) The placental thickness reaches approximately 3 cm at term (12,13) . It is reported that there could be an association between IUGR and placental thickness of < 25 mm at term (14) .…”

Section: Introductionmentioning

confidence: 99%

Diagnostic Accuracy Of Placental Thickness Measured By Ultrasonography In The Detection Of Intrauterine Growth Restricted (IUGR) Babies Keeping Actual Birth Weight As Gold Standard

Jabeen¹,

Farhan²,

Amjad³

et al. 2023

JRMC

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Objective: To determine the diagnostic accuracy of the placental thickness measured by ultrasound in detecting IUGR babies keeping actual birth weight as the gold standard. Methods: This cross-sectional validation study was conducted in the Department of Radiology P.O.F Hospital Wah Cantt. The data was gathered over a period of six months, from 06-19-2017 to 12-18-2017. A total of 125 patients were included in this study. All pregnant women were examined by the greyscale and Doppler ultrasonography using a color Doppler scanner with a 5.0 MHz convex probe. Placental thickness was measured as the distance between the echogenic line of the chorionic plate and the hypoechoic myometrium. The pregnant females were followed till childbirth and the weight of the baby at birth was recorded. Results: Patients ranged between 20-35 years of age. The average age of the study participants was 27.6±3.3 years, the mean gestational age was 34.2±3.0 weeks, the mean BMI was 23.5±1.3 (kg/m2), and the mean parity was 1.1±1.0. We found a sensitivity of 65.5%, specificity of 83.3%, Positive Predictive Value( PPV) of 98.7%, Negative Predictive Value (NPV) of 10.8%, and diagnostic accuracy of 66.4% for antenatal prediction of IUGR based on placental thickness measurement. Stratification for age and gestational age was also carried out. Conclusion: Placental thickness on ultrasonography can be used as a reliable marker for detecting IUGR babies with an accuracy of 6.4%.

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Second trimester placental thickness: its’ correlation with gestational age, femur length and biparietal diameter

Cited by 4 publications

References 8 publications

Correlation of ultrasound placental diameter & thickness with gestational age

Correlation of ultrasound placental diameter & thickness with gestational age

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

Diagnostic Accuracy Of Placental Thickness Measured By Ultrasonography In The Detection Of Intrauterine Growth Restricted (IUGR) Babies Keeping Actual Birth Weight As Gold Standard

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