Ultrasonic strain reconstruction using multi-scale cross-correlation method

In elastography, the existing cross-correlation method is limited within 2% or less compression. Such small compressions are required in order to reduce the influence of waveform distortion due to the compression. In this paper, a new method, namely multi-scale cross-correlation is proposed to overcome the limitation on compression. Computer simulation results indicate that this method can be used to reconstruct large strain of 10% or more. This new method provides a realistic tool for the strain reconstruction of biological tissues.

[1]  J. Ophir,et al.  Elastography: A Quantitative Method for Imaging the Elasticity of Biological Tissues , 1991, Ultrasonic imaging.

[2]  J. Ophir,et al.  Elastography: Elasticity Imaging Using Ultrasound with Application to Muscle and Breast in Vivo , 1993, Ultrasonic imaging.

[3]  L. Wilson,et al.  Ultrasonic Measurement of Small Displacements and Deformations of Tissue , 1982 .

[4]  M. O’Donnell,et al.  Internal displacement and strain imaging using ultrasonic speckle tracking , 1994, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[5]  Ultrasonic strain reconstruction using matched filtering method , 1995, Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society.