![]() New Doppler technique for assessing uteroplacetal blood flow. 1980 87:780–5.Ĭampbell S, Diaz-Recasens J, Griffin DR, et al. Fetal blood velocity waveforms in normal pregnancy. Stuart B, Drumm J, FitzGerald DE, Diugnan NM. Applications clinique de l'examen Doppler transcutance. High-frame rate vector flow imaging of the carotid bifurcation in healthy adults: comparison with color Doppler imaging. Goddi A, Bortolotto C, Raciti MV, Fiorina I, Aiani L, Magistretti G, Sacchi A, Tinelli C, Calliada F. A comparison study of vector velocity, spectral Doppler and magnetic resonance of blood flow in the common carotid artery. ![]() 2019 45(7):1663–74.īrandt AH, Hansen KL, Ewertsen C, Holbek S, Olesen JB, Moshavegh R, Thomsen C, Jensen JA, Nielsen MB. Ultrasonic vascular vector flow mapping for 2-D flow estimation. 2014 61:1599–607.Īsami R, Tanaka T, Shimizu M, Seki Y, Nishiyama T, Sakashita H, Okada T. IEEE Trans Ultrasonics Ferroelectrics Frequency Control. A transverse oscillation approach for estimation of three-dimensional velocity vectors, part I: concept and simulation study. Angle independent ultrasonic detection of blood flow. Cross-beam vector Doppler ultrasound for angle independent velocity measurements. Vector velocity estimation of blood flow - a new application in medical ultrasound. Vector projectile imaging: time-resolved dynamic visualization of complex flow patterns. Ultrasound vector flow imaging-part II: parallel systems. Ultrasound vector flow imaging-part I: sequential systems. Jensen JA, Nikolov SI, Alfred CH, Garcia D. Recent developments in vascular ultrasound technology. Umbilical venous volume flow in the normal developing and growth restricted human fetus. 1984 53:572–8.īoito S, Struijk PC, Ursem NT, Stijnen T, Wladimiroff JW. Fetal Doppler echocardiography: methods and characterization of normal and abnormal hemodynamics. Pulsed Doppler with B-mode imaging for quantitative blood flow measurements. Doppler ultrasound: principles and instrumentation. Application of Doppler echocardiography in the assessment of fetal cardiac disease. Maulik D, Nanda NC, Moodley S, Saini VD, Thiede HA. In: Doppler ultrasound: physics, instrumentation and clinical applications. Doppler signal processors: theoretical considerations. 1982 8:705–10.Įvans DH, McDicken WN, Skidmore R, Woodcock JP. Doppler evaluation of fetal hemodynamics. Maulik D, Saini VD, Nanda NC, Rosenzweig MS. Computerized evaluation of blood flow measurement indices using Doppler ultrasound. Saini VD, Maulik D, Nanda NC, Rosenzweig MS. ![]() In addition, there is angiomorphological evidence that links abnormal Doppler indices to placental vascular pathology. Doppler indices reflect impedance to flow downstream from the measurement point, although the effect of fetal heart rate changes on the diastolic phase of the cardiac cycle may confound this ability of the indices. It is achieved by Doppler waveform analysis, which generates indices describing the pulsatility of the wave. Assessment of the downstream hemodynamic state is of importance for perinatal application. Alternative approaches include the recent development of vector velocity imaging which can provide comprehensive hemodynamic information without angle dependency. Although the technique permits volumetric flow quantification, there are critical concerns, such as angle dependency, regarding the precision of this approach. Doppler velocimetry offers a wide range of hemodynamic information.
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