Three-dimensional flow images by reconstruction from two-dimensional vector velocity maps

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography
L N BohsG E Trahey

Abstract

A method for constructing three-dimensional images of flow is described. The technique involves the acquisition of numerous closely spaced planes, each comprised of a map of the two-dimensional velocities measured in that plane. Each such vector velocity map is formed by tracking the motion of small regions of ultrasonic speckle between two ultrasonic acquisitions separated by a short time interval. In contrast to current Doppler velocity methods, this technique measures both the axial and lateral components of flow and is not subject to aliasing. The resulting series of two-dimensional vector velocity maps is then combined into a three-dimensional data set, which can be manipulated with appropriate software to yield quantitative three-dimensional displays of the flow within the interrogated volume. In this article we present such images obtained from measurements of in vitro laminar flow in a vessel, as well as a free jet phantom. The results allow comprehensive visualization of the three-dimensional flow characteristics, indicating promise for more complete and quantitative clinical assessment of blood flow.

References

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Citations

Apr 16, 1998·Medical & Biological Engineering & Computing·P J FishW N McDicken
Apr 10, 1999·The Annals of Thoracic Surgery·R De SimoneS Hagl
May 20, 1999·Journal of the American College of Cardiology·R De SimoneS Hagl
Mar 10, 1999·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·R De SimoneS Hagl
Apr 3, 2007·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Chaim YosefyJudy Hung
Jun 12, 1998·Physics in Medicine and Biology·J Meunier

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