title: Fetal blood velocity waveforms.
abstract: In this paper a method is described for obtaining and characterizing fetal blood velocity waveforms. The signals were recorded with a range-gated Doppler instrument and characterized after spectral analysis. Preliminary observations indicate differences in the waveforms obtained during normal pregnancies compared with some complicated pregnancies.
mesh_terms: D001783:Blood Flow Velocity; D005260:Female; D005333:Fetus / Q000502:physiology*; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000503:physiopathology; D014463:Ultrasonography