Ar. Skovoroda et al., TISSUE ELASTICITY RECONSTRUCTION BASED ON ULTRASONIC DISPLACEMENT ANDSTRAIN IMAGES, IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 42(4), 1995, pp. 747-765
A method is presented to reconstruct the elastic modulus of soft tissu
e based on ultrasonic displacement and strain images. Incompressible a
nd compressible media are considered separately, Problems arising with
this method, as well as applications to real measurements on gel-base
d, tissue equivalent phantoms, are given. Results show that artifacts
present in strain images can be greatly reduced using a hybrid reconst
ruction procedure based on numerical solution of the partial different
ial equations describing mechanical equilibrium of a deformed medium.