Pulsed Doppler with B-mode imaging for quantitative blood flow measurement.
D001783:Blood Flow Velocity; D003951:Diagnostic Errors; D005260:Female; D005333:Fetus / Q000502:physiology; D006801:Humans; D008433:Mathematics; D011169:Portal Vein / Q000502:physiology; D011247:Pregnancy; D012212:Rheology; D014463:Ultrasonography; D014471:Umbilical Veins / Q000502:physiology