Direct estimation of the lateral strain field using a double oscillating point spread function with a scaling factor estimator

Herve Liebgott; Jeremie Fromageau; Jens Erik Wilhjelm; Didier Vray; Philippe Delachartre

doi:10.1117/12.533023

28 April 2004 Direct estimation of the lateral strain field using a double oscillating point spread function with a scaling factor estimator

Herve Liebgott, Jeremie Fromageau, Jens Erik Wilhjelm, Didier Vray, Philippe Delachartre

Author Affiliations +

Proceedings Volume 5373, Medical Imaging 2004: Ultrasonic Imaging and Signal Processing; (2004) https://doi.org/10.1117/12.533023
Event: Medical Imaging 2004, 2004, San Diego, California, United States

Abstract

This work presents a new approach to lateral strain estimation in the field of tissue elasticity imaging with ultrasound. A particular beamforming is used to produce a point spread function (PSF) with lateral oscillations. Lateral RF signals can then be considered as the juxtaposition of RF samples coming from the same depth. This enables to estimate the lateral strain with a scaling factor estimator applied to the lateral signals. The approach is validated in simulation on a medium stretched only in the lateral direction. The estimation is unbiased for lateral strain values from 0.5 to 7 % with standard deviation less than 0.5 %.

Citation Download Citation

Herve Liebgott, Jeremie Fromageau, Jens Erik Wilhjelm, Didier Vray, and Philippe Delachartre "Direct estimation of the lateral strain field using a double oscillating point spread function with a scaling factor estimator", Proc. SPIE 5373, Medical Imaging 2004: Ultrasonic Imaging and Signal Processing, (28 April 2004); https://doi.org/10.1117/12.533023

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