Fetal weight estimation by echo-planar magnetic resonance imaging.
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).
Baker
P N
PN
Department of Obstetrics and Gynaecology, City Hospital, Nottingham, UK.
Johnson
I R
IR
Gowland
P A
PA
Hykin
J
J
Harvey
P R
PR
Freeman
A
A
Adams
V
V
Worthington
B S
BS
Mansfield
P
P
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