Fetal Transcerebellar Diameter/ Abdominal Circumference Ratio as a Gestational Age Independent Parameter for Fetal Growth

Authors

  • A Jha KIST Medical College Teaching Hospital, Lalitpur
  • B Joshi Institute of Medicine, Tribhuwan University Teaching Hospital, Maharagunj
  • S Pradhan Institute of Medicine, Tribhuwan University Teaching Hospital, Maharagunj

Keywords:

fetal biometry, fetal cerebellum, obstetric ultrasound, trans-cerebellar diameter

Abstract

Aims: The purpose of this study was to evaluate accuracy of trans-cerebellar diameter / abdominal circumference (TCD/AC) ratio to assess fetal growth. The ratio of TCD with head circumference (HC) and biparietal diameter (BPD) was also determined.

Methods: This was a prospective cross-sectional study involving 442 women with uncomplicated singleton gestation between 15-40 weeks. Protocol included obtaining the BPD, HC, TCD and AC in conventional planes  and obtaining ratio of TCD with other biometric parameters.

Results: We were able to visualize the cerebellum in about 93% of scans. The TCD/ AC ratio remained nearly constant throughout gestational age and was 0.138. The mean TCD/HC ratio was 0.124 and mean TCD/BPD ratio was 0.476.

Conclusions: TCD/HC and TCD/BPD ratio showed a small increase towards the completion of gestation while TCD/AC ratio remained nearly constant throughout gestational age. TCD/AC ratio is reliable as a gestational age independent parameter of fetal growth.

DOI: http://dx.doi.org/10.3126/njog.v9i2.11770   

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Author Biographies

A Jha, KIST Medical College Teaching Hospital, Lalitpur

Department of Radiodiagnosis and Medical Imaging

B Joshi, Institute of Medicine, Tribhuwan University Teaching Hospital, Maharagunj

Department of Radiodiagnosis and Medical Imaging

S Pradhan, Institute of Medicine, Tribhuwan University Teaching Hospital, Maharagunj

Department of Radiodiagnosis and Medical Imaging

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Published

2014-12-16

How to Cite

Jha, A., Joshi, B., & Pradhan, S. (2014). Fetal Transcerebellar Diameter/ Abdominal Circumference Ratio as a Gestational Age Independent Parameter for Fetal Growth. Nepal Journal of Obstetrics and Gynaecology, 9(2), 79–82. Retrieved from https://www.nepjol.info/index.php/NJOG/article/view/11770

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Section

Brief Communication