@inproceedings{a079fa432d0f45f6b03b3852c3dc1990,
title = "Acoustoelasticity modeling of bladder tissue nonlinearity: Ex vivo study",
abstract = "A method for measurement of the bladder wall nonlinear elasticity is presented. The method is based on acoustoelasticity modeling of the bladder tissue modulus of elasticity changes at different volumetric loading levels. At each loading volume, tissue strain is obtained from the real-time images. Using acoustic radiation force, a transient Lamb wave is excited on the bladder wall and shear elasticity is obtained from 2-D Fourier analysis of tissue motion spatial-temporal dispersion maps. Experimental elasticity and strain data are then used to obtain nonlinear elasticity parameter, A, using non-linear least square optimization. The method was tested in 9 ex vivo porcine bladder samples before and after treatment with formalin. The estimated nonlinearity parameter, A, was significantly higher in the treated samples compared to intact (P < 0.0021).",
keywords = "Acoustoelasticity, Bladder, Lamb wave, Shear modulus, Strain",
author = "Mahdi Bayat and Aprana Singh and Jeremy Webb and Viksit Kumar and Adriana Gregory and Azra Alizad and Mostafa Fatemi",
note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 2017 IEEE International Ultrasonics Symposium, IUS 2017 ; Conference date: 06-09-2017 Through 09-09-2017",
year = "2017",
month = oct,
day = "31",
doi = "10.1109/ULTSYM.2017.8091856",
language = "English (US)",
series = "IEEE International Ultrasonics Symposium, IUS",
publisher = "IEEE Computer Society",
booktitle = "2017 IEEE International Ultrasonics Symposium, IUS 2017",
}