Correlation of ultrasound placental diameter &amp; thickness with gestational age

Njeze, NR; Ogbochukwu, Joseph O; Chinawa, Josephat M

doi:10.12669/pjms.36.5.1938

Cited by 7 publications

(6 citation statements)

References 24 publications

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“…The study found a cut off placental thickness more than 36.3 mm can be used to differentiate between term and preterm pregnancy. Similar findings were also reported by the authors such as Erkamp et al and Njeze et al 13,14 IN our study we found that that there was a Strong positive correlation between placental thickness and gestational age from 12 weeks to 38 weeks of gestation after which there was negative correlation between placental thickness and gestational age. Karthikeyan et al conducted a cross sectional study to estimate the (Placental thickness) PT and at investigating the relationship between PT and the foetal growth parameters in normal singleton pregnancies.…”

Section: Discussionsupporting

confidence: 92%

Assessment of placental thickness as a predictor of gestational age and fetal weight in second and third trimester of pregnancy

Ahmed

Ibrahim

Farouk³

et al. 2023

Int J Reprod Contracept Obstet Gynecol

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Background: Estimation of precise gestational age as well as fetal weight is important and is usually done by ultrasound assessment of fetal biometry. Recently estimation of placental thickness as a marker of fetal maturity as well as fetal weight has become a topic interest amongst obstetricians because of the accuracy with which placental thickness can be used for estimation of gestational age. We undertook this observational study to find out whether placental thickness can be used for estimation of gestational age and fetal weight in healthy singleton pregnancies. Methods: This was a prospective observational study in which 210 patients in second and third trimester of pregnancy who has undergone antenatal ultrasound examination were included on the basis of a predefined inclusion and exclusion criteria. First gestational age estimation was done using fetal biometry (head circumference, biparietal diameter, abdominal circumference and femur length). Placental thickness was measured at the level of cord insertion. Correlation between placental thickness and gestational age as well as fetal weight as determined by biometry was analyzed by pearsons coefficient. P value less than 0.05 was taken as statistically significant. Results: Mean age of studied cases found to be 24.62±4.12 years. Mean gestational age of the studied cases was found to be 28.19±6.90 weeks. The most common location of placenta was anterior which was seen in 99 (47.14%) patients followed by posterior (32.38%) and fundal (10.95%). Analysis of mean placental thickness in studied cases showed that at 12 weeks of gestation the mean placental thickness was 12.96 mm. Mean placental thickness at 37 weeks found to be 36.82 mm and this value was determined to be cut-off value for differentiating between full term and preterm gestation. There was strong positive correlation between placental thickness and gestational age between 12-38 weeks. Similarly positive correlation also existed between placental thickness and gestational age between 14-37 weeks. Conclusions: Placental thickness can be used for estimation of gestational age as well as fetal weight in cases where fetal biometry can not be entirely relied upon.

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Section: Discussionsupporting

confidence: 92%

Assessment of placental thickness as a predictor of gestational age and fetal weight in second and third trimester of pregnancy

Ahmed

Ibrahim

Farouk³

et al. 2023

Int J Reprod Contracept Obstet Gynecol

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“…Various studies have shown that there is a positive correlation between increasing gestational age and PT. 13 Karthikeyan et al, conducted a study to analyze the relationship between PT and the fetal growth parameters in normal singleton pregnancies. The authors included 211 pregnant women in this cross-sectional prospective study.…”

Section: Discussionmentioning

confidence: 99%

Placental thickness and its correlation to gestational age estimated by fetal biometry: A cross-sectional study

et al. 2022

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Background: Accurate estimation of gestational age is important not only for appropriate antenatal care but also is crucial for undertaking various diagnostics tests such as chorionic villous sampling and amniocentesis. In certain conditions, where biometry cannot be entirely relied on for estimation of gestational age placental thickness (PT) that can be used for estimation of gestational age. Aims and Objectives: The aims of this study were as follows: (1) To analyze relationship between PT and gestational age as determined by fetal biometry in second and third trimester of pregnancy. (2) To find out cutoff PT value for differentiating between preterm and term gestations. Materials and Methods: This was a cross-sectional, in which 140 patients, in 2nd and 3rd trimester, were included on the basis of a predefined inclusion and exclusion criteria. PT was measured in mm along with their respective standard deviation. The correlation between PT and gestational age as determined by biometry. Results: The mean age of the studied cases was found to be 4.15±3.5 years. At 12 weeks of gestation, the mean PT was 14.36 mm. There was a strong positive correlation between gestational age and PT in 2nd (r=0.9943) and 3rd (r=0.9973) trimesters. After 37 weeks of gestation, there was no significant correlation between PT and gestational age (P=0.469). Conclusion: PT has a significant positive correlation with gestational age in 2nd and 3rd trimester of pregnancy (up to 37 weeks of gestation) and can be reliably used for determination of gestational age independent of fetal biometry.

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“…It showed that the placental thickness increases gradually with the advancing gestational age. Njeze et al, 16 concluded that the placental thickness is a good predictor for estimating gestational age. In our study the significant positive correlation of PT was noted with gestational age with Pearson Correlation of 0.985 and p-value of 0.001 and with all other ultrasonographic fetal growth parameters i.e., BPD, FL, AC, HC with Pearson correlation of 0.988, 0.987, 0.991 and 0.988 and p-values of 0.001, 0.001, 0.001 and 0.001 respectively.…”

Section: Discussionmentioning

confidence: 99%

Correlation of Placental Thickness Measured Sonographically with the Gestational Age Estimated by Fetal Growth Parameters in Normal Singleton Pregnancy

Jadoon

Anwar²,

Khattak³

et al. 2022

PAFMJ

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Objective: To correlate the mean placental thickness with the gestational age estimated by fetal growth parameters in normal singleton pregnancy. Study Design: Cross-sectional study. Place and Duration of Study: Combined Military Hospital, Quetta Pakistan, from Feb to Aug 2020. Methodology: All patients who fulfilled the inclusion criteria at the Department of Radiology, Combined Military Hospital Quetta were included. After taking informed written consent and history, transabdominal-ultrasonography using a low frequency 3-5 MHz curved array transducer was done to assess the outcome. Result: A total of 100 women with a singleton pregnancy were included. The mean age of women was 28.100 ± 3.349 years. The mean placental thickness (PT) was 29.785 ± 5.700 mm. A significant positive correlation of placental thickness was noted with gestational age with a Pearson Correlation of 0.985 and p-value of 0.001. Conclusion: Placental thickness has a linear relationship with gestational age. Placental thickness in millimeters can be an essential parameter for estimating gestational age.

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Correlation of ultrasound placental diameter & thickness with gestational age

Cited by 7 publications

References 24 publications

Assessment of placental thickness as a predictor of gestational age and fetal weight in second and third trimester of pregnancy

Assessment of placental thickness as a predictor of gestational age and fetal weight in second and third trimester of pregnancy

Placental thickness and its correlation to gestational age estimated by fetal biometry: A cross-sectional study

Correlation of Placental Thickness Measured Sonographically with the Gestational Age Estimated by Fetal Growth Parameters in Normal Singleton Pregnancy

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