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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JCDR Research and Publications Private Limited
2015-10-01
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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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language | English |
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publishDate | 2015-10-01 |
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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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