PMID: 7357342Feb 2, 1980Paper

Measurement of human fetal blood flow

British Medical Journal
J B SaudersK O Lewis

Abstract

Real-time B-mode ultrasonography was combined with a pulsed Doppler ultrasound technique for transcutaneous measurement of human fetal blood flow in the aorta and intra-abdominal part of the umbilical vein. The target vessel was located and its diameter measured in the two-dimensional real-time image. The pulsed Doppler transducer was attached to the real-time transducer at a fixed angle. By processing the Doppler shift signals the instrument estimated the mean and maximum blood velocities and the integral under the velocity curves. This permitted calculation of the blood flow. The method was applied to 26 fetuses in normal late pregnancies. Mean blood flow in the descending part of the fetal aorta based on maximum velocity was 191 ml/kg/min. Mean flow in the intra-abdominal part of the umbilical vein was 110 ml/kg/min. This method of measurement is non-invasive and opens new perspectives in studying fetal haemodynamics.

References

May 1, 1976·Cardiovascular Research·B A Angelsen, A O Brubakk
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Citations

Jun 1, 1986·European Journal of Obstetrics, Gynecology, and Reproductive Biology·J W WladimiroffA Reuss
Mar 1, 1989·European Journal of Obstetrics, Gynecology, and Reproductive Biology·U L NordströmD J Taylor
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May 2, 1981·Lancet·P KirkinenS Eik-Nes
Oct 29, 2002·Ultrasound in Medicine & Biology·Helena GardinerKarel Marsál
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Jan 1, 1985·Journal of the American College of Cardiology·C S Kleinman, R L Donnerstein
May 9, 2002·Medical Engineering & Physics·L J Myers, W L Capper
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Jan 1, 1986·Gut·S N Sullivan
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Jul 17, 2009·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·K FloG Acharya
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Jan 1, 1989·Ultrasound in Medicine & Biology·D GustafssonG Gennser

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