The accuracy and precision of estimating tissue displacements from ultrasonic images

E. J. Chen, W. K. Jenkins, W. D. O'Brien

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In many medical ultrasound imaging systems, clinical data are often presented in the form of tissue displacement and tissue velocity maps. In this paper, we determine the accuracy of tissue displacement estimates obtained using a well established crosscorrelation, speckle tracking technique. We evaluate the accuracy of the cross-correlation technique as a function of 3 parameters: 1) the magnitude of the tissue displacement, 2) the size of the region being tracked and 3) the host tissue type. Three different sample types: porcine liver, porcine muscle and woolen sea sponge samples were used to study the effect of different scattering media on displacement estimates. For identically sized target regions and displacements, liver samples produced estimates with the largest uncertainties. For all 3 sample types, the accuracy and precision of displacement estimates deteriorated with increasing sample displacements and decreasing target dimensions.

Original languageEnglish (US)
Title of host publication1992 Ultrasonics Symposium Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1069-1072
Number of pages4
ISBN (Electronic)0780305620
DOIs
StatePublished - 1992
Event1992 Ultrasonics Symposium - Tucson, United States
Duration: Oct 20 1992Oct 23 1992

Publication series

NameProceedings - IEEE Ultrasonics Symposium
Volume1992-October
ISSN (Print)1051-0117

Conference

Conference1992 Ultrasonics Symposium
CountryUnited States
CityTucson
Period10/20/9210/23/92

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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