Cardiac Doppler flow velocities in human fetuses

K. L. Reed, E. J. Meijboom, David Sahn, S. A. Scagnelli, L. M. Valdes-Cruz, L. Shenker

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Abstract

Cardiac Doppler flow velocity studies were performed in normal human fetuses between 18 and 40 weeks of gestation. Two-dimensional linear array and sector scanning techniques were used for the initial evaluation of the fetuses, which included a standard ultrasound examination to determine normal anatomy and estimated gestational age and weight. Fetal cardiac ultrasound examination was then performed, with four-chamber, short-axis/great vessel, long-axis/left ventricular outflow tract, and aortic arch views obtained. Pulsed echo Doppler instrumentation was used to obtain flow velocity measurements through the tricuspid, pulmonary outflow, mitral, and aortic outflow regions. Calculation of transvalve volume flow for mitral and tricuspid valves was performed by combining the valve anulus sizes and calculated mean temporal velocities for the valves. Maximal flow velocities were greater through the tricuspid (mean maximal velocity 51 ± 1.2 [SE] cm/sec) than through the mitral (47 ± 1.1 cm/sec; p

Original languageEnglish (US)
Pages (from-to)41-46
Number of pages6
JournalCirculation
Volume73
Issue number1
Publication statusPublished - 1986
Externally publishedYes

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ASJC Scopus subject areas

  • Physiology
  • Cardiology and Cardiovascular Medicine

Cite this

Reed, K. L., Meijboom, E. J., Sahn, D., Scagnelli, S. A., Valdes-Cruz, L. M., & Shenker, L. (1986). Cardiac Doppler flow velocities in human fetuses. Circulation, 73(1), 41-46.