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Ultrasound imaging through time-domain diffraction tomography
Journal article

Ultrasound imaging through time-domain diffraction tomography

S Pourjavid and O Tretiak
IEEE transactions on ultrasonics, ferroelectrics, and frequency control, v 38(1), pp 74-85
Jan 1991
DOI: https://doi.org/10.1109/58.67838
PMID: 18267560
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

Acoustic diffraction Acoustic imaging Acoustic pulses Acoustic scattering Approximation methods Equations Image reconstruction Time domain analysis Tomography Ultrasonic imaging
Time-domain diffraction tomography, a technique for imaging with acoustic (and other) fields in which a medium parameter, such as density, can be mapped from scatter data collected from one pulse, is discussed. When Born approximations hold, the technique provides an exact inversion of the acoustical scattering equations. Computer simulation of the time-domain diffraction tomography equations indicates that under ideal conditions, and when the Born approximation is valid, the method can reconstruct maps of parameter variations. However, when data are collected from an incident pulse whose bandwidth is limited, the reconstruction is no longer perfect. A simple question is derived that characterizes the performance of time-domain diffraction tomography, and the limitations are explained as the effect of a spatial filter that eliminates some of the spatial frequencies. Relations between the object parameters, pulse bandwidth, and reconstruction accuracy are investigated with numerical experiments.< >

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10 citations in Web of Science
13 citations in Scopus

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Web of Science research areas
Acoustics
Engineering, Electrical & Electronic
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