Efficacy of Transcerebellar Diameter/ Abdominal Circumference Versus Head Circumference/Abdominal Circumference in Predicting Asymmetric Intrauterine Growth Retardation

Background: The high incidence of IUGR and its low recognition lead to increasing perinatal morbidity and mortality for which prediction of IUGR with timely management decisions is of paramount importance. Many studies have compared the efficacy of several gestational age independent parameters...

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Main Authors: Bhimarao, Rashmi M. Nagaraju, Venkataramana Bhat, Puttanna VN Gowda
Format: Article
Language:English
Published: JCDR Research and Publications Private Limited 2015-10-01
Series:Journal of Clinical and Diagnostic Research
Subjects:
Online Access:https://jcdr.net/articles/PDF/6554/14079_CE(RA1)_F(T)_PF1(PAK)_PFA(AK)_PF2(PAG).pdf
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author Bhimarao
Rashmi M. Nagaraju
Venkataramana Bhat
Puttanna VN Gowda
author_facet Bhimarao
Rashmi M. Nagaraju
Venkataramana Bhat
Puttanna VN Gowda
author_sort Bhimarao
collection DOAJ
description Background: The high incidence of IUGR and its low recognition lead to increasing perinatal morbidity and mortality for which prediction of IUGR with timely management decisions is of paramount importance. Many studies have compared the efficacy of several gestational age independent parameters and found that TCD/AC is a better predictor of asymmetric IUGR. Aim: To compare the accuracy of transcerebellar diameter/ abdominal circumference with head circumference/abdominal circumference in predicting asymmetric intrauterine growth retardation after 20 weeks of gestation. Materials and Methods: The prospective study was conducted over a period of one year on 50 clinically suspected IUGR pregnancies who were evaluated with 3.5 MHz frequency ultrasound scanner by a single sonologist. BPD, HC, AC and FL along with TCD were measured for assessing the sonological gestational age. Two morphometric ratios- TCD/AC and HC/AC were calculated. Estimated fetal weight was calculated for all these pregnancies and its percentile was determined. Statistical Methods: The TCD/AC and HC/AC ratios were correlated with advancing gestational age to know if these were related to GA. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and diagnostic accuracy (DA) for TCD/AC and HC/AC ratios in evaluating IUGR fetuses were calculated. Results: In the present study, linear relation of TCD and HC in IUGR fetuses with gestation was noted. The sensitivity, specificity, PPV, NPV & DA were 88%, 93.5%, 77.1%, 96.3% & 92.4% respectively for TCD/AC ratio versus 84%, 92%, 72.4%, 95.8% & 90.4% respectively for HC/AC ratio in predicting IUGR. Conclusion: Both ratios were gestational age independent and can be used in detecting IUGR with good diagnostic accuracy. However, TCD/AC ratio had a better diagnostic validity and accuracy compared to HC/AC ratio in predicting asymmetric IUGR.
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spelling doaj.art-1d96be47eeb546a7ac5190f7a65242742022-12-21T19:21:47ZengJCDR Research and Publications Private LimitedJournal of Clinical and Diagnostic Research2249-782X0973-709X2015-10-01910TC01TC0510.7860/JCDR/2015/14079.6554Efficacy of Transcerebellar Diameter/ Abdominal Circumference Versus Head Circumference/Abdominal Circumference in Predicting Asymmetric Intrauterine Growth RetardationBhimarao0Rashmi M. Nagaraju1Venkataramana Bhat2Puttanna VN Gowda3Senior Resident, Department of Radiodiagnosis, PK Das Institute of Medical Sciences, Palakkad, Kerala, India.Assistant Professor, Department of Radiodiagnosis, PK Das Institute of Medical Sciences, Palakkad, Kerala, India.Head, Department of Radiodiagnosis, Narayana Health, Mazumdar Shaw Multispecialty Hospital and Cancer Centre, Bangalore, Karnataka, India.Head, Department of Ultrasonography, Narayana Health, Mazumdar Shaw Multispecialty Hospital and Cancer Centre, Bangalore, Karnataka, India.Background: The high incidence of IUGR and its low recognition lead to increasing perinatal morbidity and mortality for which prediction of IUGR with timely management decisions is of paramount importance. Many studies have compared the efficacy of several gestational age independent parameters and found that TCD/AC is a better predictor of asymmetric IUGR. Aim: To compare the accuracy of transcerebellar diameter/ abdominal circumference with head circumference/abdominal circumference in predicting asymmetric intrauterine growth retardation after 20 weeks of gestation. Materials and Methods: The prospective study was conducted over a period of one year on 50 clinically suspected IUGR pregnancies who were evaluated with 3.5 MHz frequency ultrasound scanner by a single sonologist. BPD, HC, AC and FL along with TCD were measured for assessing the sonological gestational age. Two morphometric ratios- TCD/AC and HC/AC were calculated. Estimated fetal weight was calculated for all these pregnancies and its percentile was determined. Statistical Methods: The TCD/AC and HC/AC ratios were correlated with advancing gestational age to know if these were related to GA. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and diagnostic accuracy (DA) for TCD/AC and HC/AC ratios in evaluating IUGR fetuses were calculated. Results: In the present study, linear relation of TCD and HC in IUGR fetuses with gestation was noted. The sensitivity, specificity, PPV, NPV & DA were 88%, 93.5%, 77.1%, 96.3% & 92.4% respectively for TCD/AC ratio versus 84%, 92%, 72.4%, 95.8% & 90.4% respectively for HC/AC ratio in predicting IUGR. Conclusion: Both ratios were gestational age independent and can be used in detecting IUGR with good diagnostic accuracy. However, TCD/AC ratio had a better diagnostic validity and accuracy compared to HC/AC ratio in predicting asymmetric IUGR.https://jcdr.net/articles/PDF/6554/14079_CE(RA1)_F(T)_PF1(PAK)_PFA(AK)_PF2(PAG).pdffetal cerebellumgestational agegrowth restrictionultrasound
spellingShingle Bhimarao
Rashmi M. Nagaraju
Venkataramana Bhat
Puttanna VN Gowda
Efficacy of Transcerebellar Diameter/ Abdominal Circumference Versus Head Circumference/Abdominal Circumference in Predicting Asymmetric Intrauterine Growth Retardation
Journal of Clinical and Diagnostic Research
fetal cerebellum
gestational age
growth restriction
ultrasound
title Efficacy of Transcerebellar Diameter/ Abdominal Circumference Versus Head Circumference/Abdominal Circumference in Predicting Asymmetric Intrauterine Growth Retardation
title_full Efficacy of Transcerebellar Diameter/ Abdominal Circumference Versus Head Circumference/Abdominal Circumference in Predicting Asymmetric Intrauterine Growth Retardation
title_fullStr Efficacy of Transcerebellar Diameter/ Abdominal Circumference Versus Head Circumference/Abdominal Circumference in Predicting Asymmetric Intrauterine Growth Retardation
title_full_unstemmed Efficacy of Transcerebellar Diameter/ Abdominal Circumference Versus Head Circumference/Abdominal Circumference in Predicting Asymmetric Intrauterine Growth Retardation
title_short Efficacy of Transcerebellar Diameter/ Abdominal Circumference Versus Head Circumference/Abdominal Circumference in Predicting Asymmetric Intrauterine Growth Retardation
title_sort efficacy of transcerebellar diameter abdominal circumference versus head circumference abdominal circumference in predicting asymmetric intrauterine growth retardation
topic fetal cerebellum
gestational age
growth restriction
ultrasound
url https://jcdr.net/articles/PDF/6554/14079_CE(RA1)_F(T)_PF1(PAK)_PFA(AK)_PF2(PAG).pdf
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AT venkataramanabhat efficacyoftranscerebellardiameterabdominalcircumferenceversusheadcircumferenceabdominalcircumferenceinpredictingasymmetricintrauterinegrowthretardation
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