Title :
Theoretical analysis and verification of ultrasound displacement and strain imaging
Author :
Skovoroda, Andrei R. ; Emelianov, Stanislav Y. ; Lubinski, Mark A. ; Sarvazyan, Amen P. ; O´Donnell, Matthew
Author_Institution :
Inst. of Math. Problems of Biol., Acad. of Sci., Pushchino, Russia
fDate :
5/1/1994 12:00:00 AM
Abstract :
Evaluation of internal displacement and strain distributions in tissue under externally applied forces is a necessary step in elasticity imaging. To obtain a quantitative image of the elastic modulus, strain and displacement fields must be measured with reasonable accuracy and inverted based on an accurate theoretical model of soft tissue mechanics. In this paper, results of measured internal strain and displacement fields from gel-based phantoms are compared with theoretical predictions of a linear elastic model. In addition, some aspects of elasticity reconstruction based on measured displacement and strain fields are discussed.<>
Keywords :
biomedical ultrasonics; elastic deformation; elastic moduli; elasticity; medical image processing; US displacement imaging; US strain imaging; elastic modulus; elasticity imaging; externally applied forces; gel-based phantoms; internal displacement; medical imaging; soft tissue mechanics; strain distributions; theoretical model; tissue; ultrasound displacement; Biological tissues; Capacitive sensors; Displacement measurement; Elasticity; Imaging phantoms; Mechanical variables measurement; Predictive models; Strain measurement; Ultrasonic imaging; Ultrasonic variables measurement;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
