A novel motion compensation algorithm for acoustic radiation force elastography.
A novel method of physiological motion compensation for use with radiation force elasticity imaging has been developed. The method utilizes a priori information from finite element method models of the response of soft tissue to impulsive radiation force to isolate physiological motion artifacts from radiation force-induced displacement fields. The new algorithmis evaluated in a series of clinically realistic imaging scenarios, and its performance is compared to that achieved with previously described motion compensation algorithms. Though not without limitations, the new model-based motion compensation algorithm performs favorably in many circumstances and may be a logical choice for use with in vivo abdominal imaging.
Fahey
B J
BJ
Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA. brian.fahey@duke.edu
Hsu
S J
SJ
Trahey
G E
GE
D000162:Acoustics; D000465:Algorithms; D016477:Artifacts; D054459:Elasticity Imaging Techniques / Q000379:methods*; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D009038:Motion