Journal of clinical ultrasound : JCU
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To assess ductus arteriosus velocity waveforms in the appropriate and small-for-gestational-age (SGA) fetuses. ⋯ The blood velocity of the ductus arteriosus increase with advancing gestation. Our results suggest that Doppler ultrasonographic study of the fetal ductus arteriosus, unlike Doppler study of the umbilical artery or middle cerebral artery, is not useful as an indicator of adverse fetal outcome.