Description of Broad-Band Pulsed Doppler Ultrasound Processing Using the Two-Dimensional Fourier Transform

1 October 1991

journal article
research article
Published by SAGE Publications in Ultrasonic Imaging

Vol. 13 (4) , 301-315
https://doi.org/10.1177/016173469101300401

Abstract

Considering data from a Doppler sample volume as a two-dimensional function of depth and time, the properties of its two-dimensional fast Fourier transform (2DFFT) are discussed. It is shown that the 2DFFT of idealized Doppler data from moving scatterers is a line whose slope is the velocity of the scatterers. Aliasing, finite bandwidth effects, and spectral broadening due to transit time effects receive simple descriptions in this scheme. Existing processing schemes can be described graphically in this unifying description. Processing of broad band pulsed Doppler ultrasound can incorporate a correction for aliasing if based on the two-dimensional Fourier transform, and this has been tested using data from tissue-mimicking phantom in a tank-based experiment.

Keywords

This publication has 9 references indexed in Scilit:

A new wideband spread target maximum likelihood estimator for blood velocity estimation. II. Evaluation of estimator with experimental data
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1991
A new wideband spread target maximum likelihood estimator for blood velocity estimation. I. Theory
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1991
Volumetric blood flow via time-domain correlation: experimental verification
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1990
Flow velocity profile via time-domain correlation: error analysis and computer simulation
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1990
Recognition and velocity computation of large moving objects in images
IEEE Transactions on Acoustics, Speech, and Signal Processing, 1988
Ultrasound Doppler Probing of Flows Transverse with Respect to Beam Axis
IEEE Transactions on Biomedical Engineering, 1987
Time Domain Formulation of Pulse-Doppler Ultrasound and Blood Velocity Estimation by Cross Correlation
Ultrasonic Imaging, 1986
Some novel windows and a concise tutorial comparison of window families
IEEE Transactions on Acoustics, Speech, and Signal Processing, 1978
Pulsed Ultrasonic Doppler Blood-Flow Sensing
IEEE Transactions on Sonics and Ultrasonics, 1970