title: Reproducibility of fetal cardiac flow velocity waveforms at atrioventricular level.
abstract: Reproducibility of flow velocity waveform recording and analysis was studied at fetal atrioventricular level (mitral and tricuspid valve) in 25 normal pregnancies. The flow velocity parameters studied were peak-E wave velocity, peak-A wave velocity and time-averaged velocity. In each patient, two consecutive measurements were performed (time delay, 15 min) and of each measurement two hardcopies were analyzed. A high reproducibility was achieved for all parameters studied; the coefficients of variation between readings of hardcopies were < or = 2% and the coefficients of variation between tests within patients were < or = 4%.
authors: Department of Obstetrics and Gynecology, Academic Hospital Rotterdam-Dijkzigt, Erasmus University Rotterdam, The Netherlands.
authors: K
authors: K
authors: van der Mooren
authors: J W
authors: JW
authors: Wladimiroff
authors: W C
authors: WC
authors: Hop
mesh_terms: D000328:Adult; D001283:Atrioventricular Node / Q000000981:diagnostic imaging / Q000502:physiology; D001783:Blood Flow Velocity; D005260:Female; D005333:Fetus / Q000502:physiology*; D005865:Gestational Age; D006351:Heart Valves / Q000000981:diagnostic imaging* / Q000502:physiology; D006801:Humans; D008423:Maternal Age; D010298:Parity; D011247:Pregnancy; D015203:Reproducibility of Results; D016216:Ultrasonography, Prenatal