title: Transverse cerebellar diameter/abdominal circumference ratio throughout pregnancy: a gestational age-independent method to assess fetal growth.
abstract: In a prospective study of 162 patients, measurements of the transverse cerebellar diameter (TCD) and abdominal circumference (AC) were obtained between 15-38 weeks' gestation. A ratio between the TCD and AC was calculated after each examination. This ratio remained constant during gestation. The mean ratio was 13.7% (fifth and 95th percentiles of 11.9 and 15.9%, respectively); the median ratio was 13.6%. Forty-two patients had repeat measurements and the ratio did not change. This ratio is gestational age-independent; however, further investigation is needed to determine its application in the assessment of fetal growth abnormalities.
authors.affiliation: Department of Obstetrics and Gynecology, University of Connecticut Health Center-John Dempsey Hospital, Farmington, Connecticut.
authors.forename: W A
authors.initials: WA
authors.lastname: Campbell
authors.forename: D
authors.initials: D
authors.lastname: Nardi
authors.forename: A M
authors.initials: AM
authors.lastname: Vintzileos
authors.forename: J F
authors.initials: JF
authors.lastname: Rodis
authors.forename: G W
authors.initials: GW
authors.lastname: Turner
authors.forename: J F
authors.initials: JF
authors.lastname: Egan
mesh_terms: D000005:Abdomen / Q000254:growth & development; D000886:Anthropometry; D002531:Cerebellum / Q000254:growth & development; D003430:Cross-Sectional Studies; D005314:Embryonic and Fetal Development; D005260:Female; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D011446:Prospective Studies