Elastographic axial resolution criteria: an experimental study
- 1 January 2000
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
- Vol. 47 (1) , 304-309
- https://doi.org/10.1109/58.818775
Abstract
In elastography, window size has been typically used synonymously with resolution. Strain is estimated by computing the gradient of the displacement estimates, which have a direct dependence on the window size. However, the resolution is also dependent on the separation between these windows. The intricate relationship between the window size, window shift, and resolution has not previously been explored. In this article, we perform a controlled simulation experiment to evaluate the relationship among elastographic axial resolution, window size, and window shift. We conclude that the axial resolution can be expressed as a bilinear function of window size and window shift, the latter having a much larger weight.Keywords
This publication has 15 references indexed in Scilit:
- Elastic Moduli of Breast and Prostate Tissues under CompressionUltrasonic Imaging, 1998
- Multiresolution imaging in elastographyIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1998
- Reduction of signal decorrelation from mechanical compression of tissues by temporal stretching: Applications to elastographyUltrasound in Medicine & Biology, 1997
- The nonstationary strain filter in elastography: Part I. Frequency dependent attenuationUltrasound in Medicine & Biology, 1997
- An elasticity microscope. Part II: Experimental resultsIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1997
- A Least-Squares Strain Estimator for ElastographyUltrasonic Imaging, 1997
- A theoretical framework for performance characterization of elastography: the strain filterIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1997
- Fundamental mechanical limitations on the visualization of elasticity contrast in elastographyUltrasound in Medicine & Biology, 1995
- Reduction of Image Noise in ElastographyUltrasonic Imaging, 1993
- The New Physical Optics NotebookPublished by SPIE-Intl Soc Optical Eng ,1989