Adaptive ultrasonic displacement estimation for elastic shock waves in soft solids

Author

Pinton, Gianmarco ; Gennisson, Jean-Luc ; Tanter, Mickael ; Coulouvrat, Francois

Author_Institution

Inst. d´Alembert, Univ. Pierre et Marie Curie, Paris, France

fYear

2012

fDate

7-10 Oct. 2012

Firstpage

204

Lastpage

207

Abstract

The displacements induced by propagating elastic shock waves have regions of complex motion that can change rapidly across a single wave profile. Conventional tracking algorithms are not well adapted to the task of tracking the shock front. An adaptive algorithm based on polynomial splines and the normalized cross correlation is presented. It is shown to that it can track the shock front in simulated data and in data measured in a heterogeneous tissue-mimicking gelatin phantom.

Keywords

acoustic correlation; biological tissues; biomedical ultrasonics; displacement measurement; gelatin; phantoms; polynomials; shock waves; ultrasonic measurement; ultrasonic propagation; adaptive algorithm; adaptive ultrasonic displacement estimation; complex motion; heterogeneous tissue-mimicking gelatin phantom; normalized cross correlation; polynomial splines; propagating elastic shock waves; shock front track; single wave profile; soft solids; Acoustics; Adaptive algorithms; Correlation; Electric shock; Radio frequency; Shock waves; Splines (mathematics);

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2012 IEEE International

Conference_Location

Dresden

ISSN

1948-5719

Print_ISBN

978-1-4673-4561-3

Type

conf

DOI

10.1109/ULTSYM.2012.0051

Filename

6562374