Velocity Filter Based Tissue Elasticity Imaging for Low Frequency Vibration Wave Method

Abstract

An elasticity imaging method using continuous vibration wave excitation is expected to be a safe and quantitative technique. A velocity map is successfully produced by running wave number spectrum analysis of the 2D displacement map of the shear wave propagation. However, a problem is still remained that the accuracy and resolution is not sufficient for medical application. This paper presents an elasticity imaging method based on velocity filtering to clear the boundary of a hard target. We demonstrate an effectiveness of this method through the simulated data.