The effects of digitization on the elastographic signal-to-noise ratio.

@article{Srinivasan2002TheEO,
  title={The effects of digitization on the elastographic signal-to-noise ratio.},
  author={Seshadri Srinivasan and Faouzi Kallel and Jonathan Ophir},
  journal={Ultrasound in medicine & biology},
  year={2002},
  volume={28 11-12},
  pages={1521-34}
}
In elastography, the tissue under investigation is compressed and the resulting strain is estimated from the gradient of the displacement (time-delay) estimates. The displacements are typically estimated by cross-correlating the radiofrequency (RF) ultrasound signals of the pre- and postcompressed tissue. One of the parameters used to quantify the resulting quality of the elastogram is the elastographic signal-to-noise ratio (SNR(e)). For a uniformly elastic target (a single elastic modulus… CONTINUE READING
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Fundamental limitations in passive time delay estimation—Part I: Narrow-band systems

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4 Excerpts

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