Tissue elasticity reconstruction based on ultrasonic displacement and strain images

Author

Skovoroda, A.R. ; Emelianov, S.Y. ; O´Donnell, M.

Author_Institution

Inst. of Math. Problems of Biol., Acad. of Sci., Pushchino, Russia

Volume

42

Issue

4

fYear

1995

fDate

7/1/1995 12:00:00 AM

Firstpage

747

Lastpage

765

Abstract

A method is presented to reconstruct the elastic modulus of soft tissue based on ultrasonic displacement and strain images. Incompressible and compressible media are considered separately. Problems arising with this method, as well as applications to real measurements on gel-based, tissue equivalent phantoms, are given. Results show that artifacts present in strain images can be greatly reduced using a hybrid reconstruction procedure based on numerical solution of the partial differential equations describing mechanical equilibrium of a deformed medium.<>

Keywords

biomechanics; biomedical ultrasonics; elastic moduli; elasticity; image reconstruction; medical image processing; compressible media; deformed medium mechanical equilibrium; image artifacts; incompressible media; medical diagnostic imaging; numerical solution; partial differential equations; soft tissue elastic modulus; strain images; tissue elasticity reconstruction; ultrasonic displacement images; Biological tissues; Boundary conditions; Capacitive sensors; Displacement measurement; Elasticity; Image reconstruction; Reconstruction algorithms; Strain measurement; Ultrasonic imaging; Ultrasonic variables measurement;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/58.393117

Filename

393117