Fetal transcerebellar diameter and transcerebellar diameter - abdominal circumference ratio as a menstrual age independent parameter for gestational age estimation with grading of cerebellar maturity

Sharma, Gaurav; Ghode, Rita

doi:10.18203/2320-1770.ijrcog20151309

Cited by 8 publications

(8 citation statements)

References 15 publications

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“…They measured it to be 15 mm at 15 to 17 weeks and 39 mm at 30 to 32 weeks with a strong correlation with gestational age, r = 0.96 (p < 0.001). 16 Another study by Vinkesteijn et al reported the TCD as 17 mm at 17 weeks and 40 mm at 32 weeks. 17 These values were close to our study, depicting the linear increase with gestational age.…”

Section: Discussionmentioning

confidence: 97%

Vermal Length and Transcerebellar Diameter in Gestational Age Estimation: A Guide to Forensic Expert

Ahmad

Jethani

Singh

et al. 2019

National Journal of Clinical Anatomy

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Background Transcerebellar diameter is one of the reliable, constant predicting parameters to assess the gestational age and fetal growth. Other than this, measurements of vermis, mostly the vermal length (height), have also been mentioned by authors to assess gestational age. Establishing a correlation between parameters and advancing gestation would be helpful in estimating the gestational age of fetus. Aims and Objectives To establish a correlation of vermal length and transcerebellar diameter with gestational age. Materials and Methods An observational and descriptive study conducted on 60 formalin-fixed human cerebellums. Fetuses with gross congenital/neurological abnormality were excluded. Fetuses were grouped into four groups—group 1 (13–17 weeks), group 2 (18–22 weeks), group 3 (23–27 weeks), and group 4 (28–32 weeks of gestation). Vermal length and transcerebellar diameter were measured with help of Vernier calipers. The data obtained were analyzed using statistical software SPSS version 20.0 and one-way analysis of variance. Observation A linear increase in vermal length parameters and transcerebellar diameter were seen with increasing gestational age. Regression analysis was done and regression equation was derived for each parameter. Conclusion Such correlations would help in fetal age determination in the field of forensic studies.

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Section: Discussionmentioning

confidence: 97%

Vermal Length and Transcerebellar Diameter in Gestational Age Estimation: A Guide to Forensic Expert

Ahmad

Jethani

Singh

et al. 2019

National Journal of Clinical Anatomy

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“…In similar studies in Benin city Nigeria,[ 7 ] Thailand[ 32 ], India,[ 6 ] Brazil,[ 33 ] and Hawaii USA,[ 34 ] the fetal cerebellum was demonstrated as from 13 weeks GA. Other previous studies have variously demonstrated fetal cerebellum on ultrasound at 10–12 weeks’ gestation which was earlier than in this study. [ 6 8 12 35 ] This disparity is probably due to their use of more sophisticated ultrasound machines.…”

Section: Discussionmentioning

confidence: 99%

Fetal Gestational Age Estimation Using Ultrasonic Transverse Cerebellar Diameter in a Sub-Saharan African Population

Adelabu,

Bello,

Idowu

et al. 2023

Journal of Medical Ultrasound

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Background: To explore the relationship between fetal Transverse Cerebellar Diameter (TCD) and menstrual gestational age (GA) and to generate normative references (nomogram) of the fetal TCD in some pregnant women in Southwest Nigeria. Methods: Four hundred pregnant women with a singleton fetus between 14 and 38 weeks GA were enrolled. The TCD and other biometric parameters (biparietal diameter, head circumference, abdominal circumference, and femur length) as well as the cerebellar appearance were analyzed and correlated with the GA. Results: The mean TCD increased from 13.3 ± 0.3 mm at 14 weeks to 52.3 ± 3.3 mm at 38 weeks of pregnancy. A strong positive correlation was observed between TCD and GA, which was best represented by a linear regression equation: Predicted GA = 0.557 × TCD + 8.840. The regression analysis indicated a statistically significant strong positive relationship between TCD and GA (r = 0.972 and P < 0.001). The cerebellar appearance based on shape and echogenicity was graded into Grade I: 230 fetuses (57.5%); Grade II: 74 fetuses (18.5%) and Grade III: 96 fetuses (24.0%). Median GA and TCD were 21 weeks and 21.2 mm for Grade I; 29 weeks and 35.5 mm for Grade II; and 35 weeks and 48.1 mm for Grade III, respectively. Conclusion: The TCD increased in a linear fashion with advancing GA in the evaluated fetuses. The TCD is, therefore, a good marker for GA estimation. There is a gradual ultrasonographic change in fetal cerebellar appearance with advancing gestation.

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“…These parameters are also influenced by fetal growth, configuration of skull and external compressive forces as in certain abnormal presentations. 20 Cerebellum lies in the posterior cranial fossa, surrounded by the dense petrous ridges and occipital bone so it can withstand deformation by extrinsic pressure better than the parietal bones. 21 TCD is a unique parameter for estimating the gestational age of fetus.…”

Section: Discussionmentioning

confidence: 99%

Transverse Cerebellar Diameter as an Independent Predictor of Gestational Age in Normal and IUGR Pregnancies

Kumar¹,

Kaushik²,

Gupta³

et al. 2020

IJCMSR

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Fetal transcerebellar diameter and transcerebellar diameter - abdominal circumference ratio as a menstrual age independent parameter for gestational age estimation with grading of cerebellar maturity

Cited by 8 publications

References 15 publications

Vermal Length and Transcerebellar Diameter in Gestational Age Estimation: A Guide to Forensic Expert

Vermal Length and Transcerebellar Diameter in Gestational Age Estimation: A Guide to Forensic Expert

Fetal Gestational Age Estimation Using Ultrasonic Transverse Cerebellar Diameter in a Sub-Saharan African Population

Transverse Cerebellar Diameter as an Independent Predictor of Gestational Age in Normal and IUGR Pregnancies

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