TY - GEN
T1 - Wavelength average velocity estimator for ultrasound elastography
AU - Gonzalez, Eduardo A.
AU - Ormachea, Juvenal
AU - Parker, Kevin J.
AU - Castaneda, Benjamin
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/6/15
Y1 - 2016/6/15
N2 - A number of shear wave speed estimators have been developed for crawling wave sonoelastography. In this study, a new low-cost estimator based on spatial wavelength averaging along the slow-time domain is presented while assessing its performance through gelatin-based inclusion and homogeneous phantoms. Results showed favorable estimation mean accuracy (93.8%) on the homogeneous phantoms at different concentrations. However, underestimation is present in stiffer inclusions with size smaller than the true wavelength of the interference pattern (83.4% mean accuracy). Still, the new approach's differentiation of stiffness allows rapid visualization of a tissue as a qualitative imaging technique. Moreover, the estimator results are suitable for further processing as a reference mask implemented in several shear wave speed estimators.
AB - A number of shear wave speed estimators have been developed for crawling wave sonoelastography. In this study, a new low-cost estimator based on spatial wavelength averaging along the slow-time domain is presented while assessing its performance through gelatin-based inclusion and homogeneous phantoms. Results showed favorable estimation mean accuracy (93.8%) on the homogeneous phantoms at different concentrations. However, underestimation is present in stiffer inclusions with size smaller than the true wavelength of the interference pattern (83.4% mean accuracy). Still, the new approach's differentiation of stiffness allows rapid visualization of a tissue as a qualitative imaging technique. Moreover, the estimator results are suitable for further processing as a reference mask implemented in several shear wave speed estimators.
KW - crawling waves
KW - elastography
KW - shear waves
UR - https://www.scopus.com/pages/publications/84978436616
U2 - 10.1109/ISBI.2016.7493438
DO - 10.1109/ISBI.2016.7493438
M3 - Conference contribution
AN - SCOPUS:84978436616
T3 - Proceedings - International Symposium on Biomedical Imaging
SP - 1017
EP - 1020
BT - 2016 IEEE International Symposium on Biomedical Imaging
PB - IEEE Computer Society
T2 - 13th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2016
Y2 - 13 April 2016 through 16 April 2016
ER -