After X-radiography, ultrasound is now the most common of all the medical imaging
technologies. For millennia, manual palpation has been used to assist in diagnosis, but it is …

The basic principles of using sonographic techniques for imaging the elastic properties of
tissues are described, with particular emphasis on elastography. After some preliminaries …

Elastography is a method that can ultimately generate several new kinds of images, called
elastograms. As such, all the properties of elastograms are different from the familiar …

In ultrasound elasticity imaging, strain decorrelation is a major source of error in
displacements estimated using correlation techniques. This error can be significantly …

In elastography, several methods for 2-D strain imaging have been introduced, based on
both raw frequency (RF) data and speckle-tracking. Although the precision and lesion …

A critical step in quasi-static ultrasound elastography is the estimation of time delay between
two frames of radio-frequency (RF) data that are obtained while the tissue is undergoing …

Elastography is based on the estimation of strain due to applied tissue compression. In
conventional elastography, strain is computed from the gradient of the displacement …

Companding is a signal preprocessing technique for improving the precision of correlation-
based time delay measurements. In strain imaging, companding is applied to warp 2-D or 3 …

Elastography is a promising way to assess tissue differences regarding stiffness or elasticity
for what was historically assessed manually by palpation. Combined with conventional …

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preSSIng the ultra 5,495,771. A* 3/1996 Sumi et al.................... 737so sound transducer …