Proposal of reference values for transverse cerebellar diameter in Korean fetuses and comparison with other countries

Background: In Korea, fetuses are currently assessed using ultrasound data collected from foreign subjects. This study aimed to propose independent reference values for the transverse cerebellar diameter (TCD) in Korean fetuses to predict gestational age (GA) and compare the TCD values among differe...

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Main Authors: Sung-Hee Yang, Chul-Hwan Hwang, Hyun-Sook An, Dong-Yeon Lee
Format: Article
Language:English
Published: IMR Press 2021-10-01
Series:Clinical and Experimental Obstetrics & Gynecology
Subjects:
Online Access:https://www.imrpress.com/journal/CEOG/48/5/10.31083/j.ceog4805169
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author Sung-Hee Yang
Chul-Hwan Hwang
Hyun-Sook An
Dong-Yeon Lee
author_facet Sung-Hee Yang
Chul-Hwan Hwang
Hyun-Sook An
Dong-Yeon Lee
author_sort Sung-Hee Yang
collection DOAJ
description Background: In Korea, fetuses are currently assessed using ultrasound data collected from foreign subjects. This study aimed to propose independent reference values for the transverse cerebellar diameter (TCD) in Korean fetuses to predict gestational age (GA) and compare the TCD values among different countries. Methods: A total of 1819 healthy singletons with GAs of 15–37 weeks were retrospectively analyzed. The TCD was measured in the transcerebellar plane of the fetal head. TCD percentiles were calculated for different GAs, and a regression model was created to predict GA. Bland–Altman analysis was performed to examine the differences in the mean TCD and variations in the TCD among different countries. Results: The TCD ranged from 1.48 to 4.76 cm with a mean of 2.7 ± 0.91 cm. In the regression model of TCD (cm) = 0.129 GA (weeks) – 0.527 (95% confidence interval 0.129–0.130, p < 0.001), the TCD explained 98.4% of the variance in GA. Significant differences in the mean TCD were found between Korea, the United States, the United Kingdom, Hong Kong, and India. TCD variations increased as the mean TCD increased. Conclusions: Fetal TCD is an important biometric index for predicting GA. Ethnic differences must be considered when using fetal TCD.
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spelling doaj.art-976988099b0b4ebb945c26416d07d9bb2022-12-22T02:11:14ZengIMR PressClinical and Experimental Obstetrics & Gynecology0390-66632021-10-014851056106010.31083/j.ceog4805169S0390-6663(21)00008-7Proposal of reference values for transverse cerebellar diameter in Korean fetuses and comparison with other countriesSung-Hee Yang0Chul-Hwan Hwang1Hyun-Sook An2Dong-Yeon Lee3Department of Radiological Science, College of Health Sciences, Catholic University of Pusan, 46252 Busan, Republic of KoreaDepartments of Radiology, Masan University, 51217 Gyeongsangnam-do, Republic of KoreaDepartment of Obstetrics and Gynecology, Ilsin Christian Hospital, 48724 Busan, Republic of KoreaDepartment of Radiological Science, College of Nursing, Healthcare Sciences & Human Ecology, Dong-eui University, 47340 Busan, Republic of KoreaBackground: In Korea, fetuses are currently assessed using ultrasound data collected from foreign subjects. This study aimed to propose independent reference values for the transverse cerebellar diameter (TCD) in Korean fetuses to predict gestational age (GA) and compare the TCD values among different countries. Methods: A total of 1819 healthy singletons with GAs of 15–37 weeks were retrospectively analyzed. The TCD was measured in the transcerebellar plane of the fetal head. TCD percentiles were calculated for different GAs, and a regression model was created to predict GA. Bland–Altman analysis was performed to examine the differences in the mean TCD and variations in the TCD among different countries. Results: The TCD ranged from 1.48 to 4.76 cm with a mean of 2.7 ± 0.91 cm. In the regression model of TCD (cm) = 0.129 GA (weeks) – 0.527 (95% confidence interval 0.129–0.130, p < 0.001), the TCD explained 98.4% of the variance in GA. Significant differences in the mean TCD were found between Korea, the United States, the United Kingdom, Hong Kong, and India. TCD variations increased as the mean TCD increased. Conclusions: Fetal TCD is an important biometric index for predicting GA. Ethnic differences must be considered when using fetal TCD.https://www.imrpress.com/journal/CEOG/48/5/10.31083/j.ceog4805169gestational agestandard valuetransverse cerebellar diameter
spellingShingle Sung-Hee Yang
Chul-Hwan Hwang
Hyun-Sook An
Dong-Yeon Lee
Proposal of reference values for transverse cerebellar diameter in Korean fetuses and comparison with other countries
Clinical and Experimental Obstetrics & Gynecology
gestational age
standard value
transverse cerebellar diameter
title Proposal of reference values for transverse cerebellar diameter in Korean fetuses and comparison with other countries
title_full Proposal of reference values for transverse cerebellar diameter in Korean fetuses and comparison with other countries
title_fullStr Proposal of reference values for transverse cerebellar diameter in Korean fetuses and comparison with other countries
title_full_unstemmed Proposal of reference values for transverse cerebellar diameter in Korean fetuses and comparison with other countries
title_short Proposal of reference values for transverse cerebellar diameter in Korean fetuses and comparison with other countries
title_sort proposal of reference values for transverse cerebellar diameter in korean fetuses and comparison with other countries
topic gestational age
standard value
transverse cerebellar diameter
url https://www.imrpress.com/journal/CEOG/48/5/10.31083/j.ceog4805169
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AT chulhwanhwang proposalofreferencevaluesfortransversecerebellardiameterinkoreanfetusesandcomparisonwithothercountries
AT hyunsookan proposalofreferencevaluesfortransversecerebellardiameterinkoreanfetusesandcomparisonwithothercountries
AT dongyeonlee proposalofreferencevaluesfortransversecerebellardiameterinkoreanfetusesandcomparisonwithothercountries