Sex-related differences in the anteroposterior diameter of the foetal cisterna magna

Clinical Radiology
G TaoC Li

Abstract

To measure the anteroposterior diameter of the foetal cisterna magna and observe whether there are differences according to sex. Three hundred and thirty-seven Chinese women with low-risk pregnancies and a singleton foetus between 22 and 38 weeks' gestational age were included in this retrospective study. Informed consent of the volunteer subjects and hospital authority approval were first obtained. Double-blinded for gender, the anteroposterior diameter of the cisterna magna of the foetuses was measured by transabdominal sonography. Magnetic resonance imaging (MRI) was used for those foetuses with mega cisterna magna. All of the foetuses were healthy by prenatal and postnatal examination, including physical and imaging examination. The mean anteroposterior diameter of the cisterna magna of all foetuses was 8.01+/-1.79 mm. The anteroposterior diameter of the cisterna magna had no obvious correlation with the gestational age. The mean anteroposterior diameter of the cisterna magna of 179 male foetuses was 8.63+/-2.16 mm, and the mean anteroposterior diameter of the cisterna magna of 158 female foetuses was 7.87+/-1.74 mm. The size difference was statistically significant (p<0.001). In the 33 foetuses with mega cisterna magna, th...Continue Reading

References

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Citations

Apr 30, 2011·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Asha J Heard, Adam C Urato
Nov 20, 2020·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Michal GafnerEldad Katorza
Dec 3, 2020·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Yang LiGuo-Wei Tao
Nov 16, 2016·ESMO Open·Ramona WoitekThomas Helbich

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