A high-frame-rate ultrasound system for the study of tissue motions.
In this article, a technique for measuring fast periodic motion is proposed. The sequencing used in this technique is similar to the one used in conventional color Doppler systems. However, a phase correction algorithm is introduced which compensates for the acquisition delays. Criteria for the types of motion which could be detected correctly by the system are developed and presented. Effective frame rates of several hundred hertz to a few kilohertz have been achieved with the system. Applications of the system in tissue elastography are presented together with experimental results from tissue mimicking phantoms.
Baghani
Ali
A
Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC, Canada. baghani@ece.ubc.ca
Brant
Alex
A
Salcudean
Septimiu
S
Rohling
Robert
R
D000465:Algorithms; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008954:Models, Biological; D009068:Movement; D019047:Phantoms, Imaging; D018615:Ultrasonography, Doppler, Color / Q000379:methods*