title: Fetal weight estimation by echo-planar magnetic resonance imaging.
abstract: Fetal weight was estimated in utero in eleven singleton pregnancies by measurement of fetal volume with echo-planar imaging (EPI), a form of magnetic resonance imaging, and by ultrasound measurements. EPI estimates of fetal volume were closely correlated with actual birthweight (R = 0.97). The median difference (expressed as a percentage of actual birthweight) between actual and EPI-estimated birthweights was 3.0% (range 0.6-9.9); this discrepancy was significantly smaller than that found for ultrasonographic estimates (6.5% [1.7-17.8]; p < 0.01).
authors.affiliation: Department of Obstetrics and Gynaecology, City Hospital, Nottingham, UK.
authors.forename: P N
authors.initials: PN
authors.lastname: Baker
authors.forename: I R
authors.initials: IR
authors.lastname: Johnson
authors.forename: P A
authors.initials: PA
authors.lastname: Gowland
authors.forename: J
authors.initials: J
authors.lastname: Hykin
authors.forename: P R
authors.initials: PR
authors.lastname: Harvey
authors.forename: A
authors.initials: A
authors.lastname: Freeman
authors.forename: V
authors.initials: V
authors.lastname: Adams
authors.forename: B S
authors.initials: BS
authors.lastname: Worthington
authors.forename: P
authors.initials: P
authors.lastname: Mansfield
mesh_terms: D001724:Birth Weight; D001835:Body Weight; D017352:Echo-Planar Imaging / Q000379:methods; D005260:Female; D005317:Fetal Growth Retardation / Q000175:diagnosis; D005320:Fetal Macrosomia / Q000175:diagnosis; D005333:Fetus / Q000033:anatomy & histology*; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D016216:Ultrasonography, Prenatal