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The effect of left-to-right intracardiac shunting on the distribution of pulmonary arterial axial velocities determined by an intraluminal pulsed Doppler technique

Published online by Cambridge University Press:  19 August 2008

G. William Henry ,
Enrique Criado ,
Carol L. Lucas ,
José I. Ferreiro ,
Belinda Ha ,
Sheri L. Carroll  and
Benson R. Wilcox
G. William Henry*
Affiliation:
From the Department of PediatricsThe University of North Carolina School of Medicine, Chapel Hill
Enrique Criado
Affiliation:
Department of Surgery, The University of North Carolina School of Medicine, Chapel Hill
Carol L. Lucas
Affiliation:
Biomedical Engineering, The University of North Carolina School of Medicine, Chapel Hill
José I. Ferreiro
Affiliation:
From the Department of PediatricsThe University of North Carolina School of Medicine, Chapel Hill
Belinda Ha
Affiliation:
Biomedical Engineering, The University of North Carolina School of Medicine, Chapel Hill
Sheri L. Carroll
Affiliation:
From the Department of PediatricsThe University of North Carolina School of Medicine, Chapel Hill
Benson R. Wilcox
Affiliation:
Department of Surgery, The University of North Carolina School of Medicine, Chapel Hill
*
Dr. G. William Henry, Division of Pediatric Cardiology, University of North Carolina, CB 7220, 311 Burnett-Womack Building, Chapel Hill, NC 27599-7220, USA. Tel. 919-966-4601; Fax. 919-966-6894.
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Abstract

The distribution of axial velocities in the pulmonary artery must be determined to describe accurately the flow in the pulmonary artery. Previous studies in our laboratory have demonstrated the complexity of the velocity profile in the pulmonary trunk and the branch pulmonary arteries with normal and altered pulmonary blood flow. These findings have demonstrated a skewed, parabolic mean velocity profile in the pulmonary trunk under normal hemodynamic conditions. To determine the effect of left-to-right intracardiac shunting on the distribution of axial velocities in the pulmonary artery, an animal model of atrial and ventricular shunting was used. In both models, the distribution of mean axial velocities remained skewed and parabolic with the higher mean velocities recorded toward the anterior wall.

Keywords

Pulmonary arterypulmonary blood flowintraluminal Dopplerintracardiac shuntingatrial septal defectventricular septal defect
Type
Original Articles
Information
Cardiology in the Young , Volume 4 , Issue 2 , April 1994 , pp. 136 - 141
Copyright
Copyright © Cambridge University Press 1994

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