Direct strain estimation in elastography using spectral cross-correlation.

  title={Direct strain estimation in elastography using spectral cross-correlation.},
  author={Tomy Varghese and Elisa E. Konofagou and Jonathan Ophir and Shaikh K. Alam and Mehmet Bilgen},
  journal={Ultrasound in medicine & biology},
  volume={26 9},
Spectral estimation of tissue strain has been performed previously by using the centroid shift of the power spectrum or by estimating the variation in the mean scatterer spacing in the spectral domain. The centroid shift method illustrates the robustness of the direct, incoherent strain estimator. In this paper, we present a strain estimator that uses spectral cross-correlation of the pre- and postcompression power spectrum. The centroid shift estimator estimates strain from the mean center… CONTINUE READING