Many Indian women present for the first antenatal check up in third trimester and most of them have unreliable LMP with no early scans. To compare the predicted accuracy of third trimester transcerebellar diameter and first trimester crown rump length for estimation of gestational age. A cross sectional study was conducted on 198 eligible antenatal women in 3rd trimester, having early scans showing CRL. Transcerebellar diameter (TCD) was measured and compared with 1st trimester CRL for accurately estimating the gestational age based on LMP. It was found that there is linear rise in TCD along with gestational age and TCD in mm corresponded to the gestational age in weeks. TCD was accurate in 90.6% women between 29 to 31 weeks and then accuracy was increased reaching 94.7% (33+1 to 35 wks) and 93.8% (37+ to 40 wks). The efficacy of 3rd trimester TCD is comparable to 1st trimester CRL for estimation of gestational age.
Published in | International Journal of Medical Imaging (Volume 5, Issue 3) |
DOI | 10.11648/j.ijmi.20170503.12 |
Page(s) | 38-41 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2017. Published by Science Publishing Group |
Crown Rump Length, Gestational Age, Transcerebellar Diameter
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APA Style
Richa Sharma, Natasha Gupta. (2017). Comparative Accuracy of Trans Cerebellar Diameter and Crown Rump Length for Estimation of Gestational Age. International Journal of Medical Imaging, 5(3), 38-41. https://doi.org/10.11648/j.ijmi.20170503.12
ACS Style
Richa Sharma; Natasha Gupta. Comparative Accuracy of Trans Cerebellar Diameter and Crown Rump Length for Estimation of Gestational Age. Int. J. Med. Imaging 2017, 5(3), 38-41. doi: 10.11648/j.ijmi.20170503.12
AMA Style
Richa Sharma, Natasha Gupta. Comparative Accuracy of Trans Cerebellar Diameter and Crown Rump Length for Estimation of Gestational Age. Int J Med Imaging. 2017;5(3):38-41. doi: 10.11648/j.ijmi.20170503.12
@article{10.11648/j.ijmi.20170503.12, author = {Richa Sharma and Natasha Gupta}, title = {Comparative Accuracy of Trans Cerebellar Diameter and Crown Rump Length for Estimation of Gestational Age}, journal = {International Journal of Medical Imaging}, volume = {5}, number = {3}, pages = {38-41}, doi = {10.11648/j.ijmi.20170503.12}, url = {https://doi.org/10.11648/j.ijmi.20170503.12}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmi.20170503.12}, abstract = {Many Indian women present for the first antenatal check up in third trimester and most of them have unreliable LMP with no early scans. To compare the predicted accuracy of third trimester transcerebellar diameter and first trimester crown rump length for estimation of gestational age. A cross sectional study was conducted on 198 eligible antenatal women in 3rd trimester, having early scans showing CRL. Transcerebellar diameter (TCD) was measured and compared with 1st trimester CRL for accurately estimating the gestational age based on LMP. It was found that there is linear rise in TCD along with gestational age and TCD in mm corresponded to the gestational age in weeks. TCD was accurate in 90.6% women between 29 to 31 weeks and then accuracy was increased reaching 94.7% (33+1 to 35 wks) and 93.8% (37+ to 40 wks). The efficacy of 3rd trimester TCD is comparable to 1st trimester CRL for estimation of gestational age.}, year = {2017} }
TY - JOUR T1 - Comparative Accuracy of Trans Cerebellar Diameter and Crown Rump Length for Estimation of Gestational Age AU - Richa Sharma AU - Natasha Gupta Y1 - 2017/08/10 PY - 2017 N1 - https://doi.org/10.11648/j.ijmi.20170503.12 DO - 10.11648/j.ijmi.20170503.12 T2 - International Journal of Medical Imaging JF - International Journal of Medical Imaging JO - International Journal of Medical Imaging SP - 38 EP - 41 PB - Science Publishing Group SN - 2330-832X UR - https://doi.org/10.11648/j.ijmi.20170503.12 AB - Many Indian women present for the first antenatal check up in third trimester and most of them have unreliable LMP with no early scans. To compare the predicted accuracy of third trimester transcerebellar diameter and first trimester crown rump length for estimation of gestational age. A cross sectional study was conducted on 198 eligible antenatal women in 3rd trimester, having early scans showing CRL. Transcerebellar diameter (TCD) was measured and compared with 1st trimester CRL for accurately estimating the gestational age based on LMP. It was found that there is linear rise in TCD along with gestational age and TCD in mm corresponded to the gestational age in weeks. TCD was accurate in 90.6% women between 29 to 31 weeks and then accuracy was increased reaching 94.7% (33+1 to 35 wks) and 93.8% (37+ to 40 wks). The efficacy of 3rd trimester TCD is comparable to 1st trimester CRL for estimation of gestational age. VL - 5 IS - 3 ER -