Fetal Transcerebellar Diameter to Abdominal Circumference Ratio (TCD/AC) in the Assessment of Normal Fetal Growth

MB Bellad; Hema Dhumale; Yeshita V Pujar; Jyotsana C Shravage; Bhavana Y Sherigar; Geeta S Durdi; Sheetal S Amber

doi:10.5005/jp-journals-10009-1166

SEARCH WITHIN CONTENT

Online First

Fetal Transcerebellar Diameter to Abdominal Circumference Ratio (TCD/AC) in the Assessment of Normal Fetal Growth

MB Bellad, Hema Dhumale, Yeshita V Pujar, Jyotsana C Shravage, Bhavana Y Sherigar, Geeta S Durdi, Sheetal S Amber

Keywords : Transverse cerebellar diameter/Abdominal circumference ratio (TCD/AC ratio),Ultrasonography,Fetal growth,Intrauterine growth restriction

Citation Information : Bellad M, Dhumale H, Pujar YV, Shravage JC, Sherigar BY, Durdi GS, Amber SS. Fetal Transcerebellar Diameter to Abdominal Circumference Ratio (TCD/AC) in the Assessment of Normal Fetal Growth. Donald School J Ultrasound Obstet Gynecol 2010; 4 (4):455-457.

DOI: 10.5005/jp-journals-10009-1166

License: CC BY-NC 4.0

Published Online: 01-12-2010

ARTICLE
REFERENCES

Abstract

Objective

To derive population specific transverse cerebellar diameter/abdominal circumference ratio (TCD/AC ratio) for the assessment of normal fetal growth.

Materials and methods

A one-year prospective observational study conducted at the KLE University's teaching hospital, Belgaum. The TCD/AC ratio was calculated for 434 obstetric patients, who met the inclusion criteria and the arithmetic mean and 1 standard deviation (SD) was calculated for the population studied.

Results

Within the study population, the TCD/AC ratio assessed for normal fetal growth with gestational age ranging from 18 to 34 weeks was found to be a constant with a mean of 13.56 +/− 1.21(1 SD).

Conclusion

A normal standard value to assess normal fetal growth is required for a given set of population in order to be compared with those fetuses with intrauterine growth restriction (IUGR). The TCD/AC value in our study remained a constant between gestational ages ranging from 18 to 34 weeks with a mean of 13.56 +/− 1.21.

PDF Share

Muder PGH, Wladimiroff JW. Fetal transverse cerebellar diameter measurements in normal and reduced fetal growth. Ultrasound Obstet Gynecol 2000;15: 47-51.
Ultrasonographic detection of abnormal fetal growth with the gestational age: Independent transverse cerebellar diameter to abdominal circmference ratio. Am J Obstet Gynecol 1994;171:1057-63.
Fetal transverse cerebellar diameter/abdominal circumference ratio in assessing fetal size. Int J Gynec Obstet 1995;50:159-63.
A dateindependent of intrauterine growth retardation: Femur length/ abdominal circumference ratio. Am J Roentgenol 1983;141(5):979-84.
FL/AC ratio: Poor predictor of intrauterine growth retardation. J Ultrsound Med Mar 1986;5(3):141-44.
Sonographic diagnosis of intrauterine growth restriction (IUGR) by fetal transverse cerebellar diameter (TCD)/abdominal circumference (AC) ratio. Int J Gynecol Obstet 1999;66:1-5.
Fetal transcerebellar diameter nomogram in singleton gestations with special emphasis in the third trimester: A comparison with previously published nomograms. Am J Obstet Gynecol 2003;189(4):1021-25.
Turner GW, Egan JFX, Nardi DA. Use of the transverse cerebellar diameter/ abdominal circumference ratio in pregnancies at risk for intrauterine growth retardation. J Clin Ultrasound 1994;22: 497-502.
Fetal transcerebellar diameter measurement with particular emphasis in the third trimester: A reliable predictor of gestational age. Am J Obstet Gynaecol 2004;191:979-84.

PDF Share