| Autor: |
Hollender P, Lipman SL, Trahey GE |
| Jazyk: |
angličtina |
| Zdroj: |
IEEE transactions on ultrasonics, ferroelectrics, and frequency control [IEEE Trans Ultrason Ferroelectr Freq Control] 2017 Dec; Vol. 64 (12), pp. 1784-1794. Date of Electronic Publication: 2017 Sep 06. |
| DOI: |
10.1109/TUFFC.2017.2749566 |
| Abstrakt: |
Conventional multiple-track-location shear wave elasticity imaging (MTL-SWEI) is a powerful tool for noninvasively estimating tissue elasticity. The resolution and noise levels of MTL-SWEI systems, however, are limited by ultrasound speckle. Single-track-location SWEI (STL-SWEI) is a novel variant which fixes the position of the tracking beam and modulates the push location to effectively cancel out the effects of speckle-induced bias. We present here a 3-D STL-SWEI system, which provides full suppression of lateral and elevation speckle bias for high-resolution volumetric elasticity imaging, and requires no spatial smoothing to make accurate measurements of shear wave speed. We demonstrate and analyze the system's performance in homogeneous and layered elasticity phantoms. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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