Title :
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
fDate :
7/1/1995 12:00:00 AM
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;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
